SKYW · Read the filing

ITEM 1A. RISK FACTORS

In addition to factors discussed elsewhere in this Report, the following are important risks which could adversely affect our future results. Additional risks and uncertainties not presently known to us or that we currently do not deem material may also impair our business operations. If any of the risks we describe below occur, or if any

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unforeseen risk develops, our operating results may suffer, our financial condition may deteriorate, the trading price of our common stock may decline and investors could lose all or part of their investment in us.

Risks That May Disrupt Our Operations

Various negative economic or industry conditions may result in reductions to our flight schedules, which could materially and adversely affect our operations and financial condition.

Our operations and financial condition are affected by many changing economic and other conditions beyond our control, including, among others:

● impact on workforce availability and economic uncertainty;

● weather and natural disasters.

The effect of any, or some combination, of the foregoing economic and industry conditions on our operations or financial condition is virtually impossible to forecast; however, the occurrence of any or all of such conditions in a significant manner could materially and adversely affect our operations and financial condition and could cause our major airline partners to reduce the utilization levels of our aircraft under our code-share agreements.

We may experience disruption in service due to delays from key third-party service providers.

We rely on third-party service providers to supply aircraft parts and for a variety of services and other functions critical to our business, particularly related to airframe and engine maintenance and repair. A service failure by one of our key service providers could result in a disruption to our operations. We use third party service providers in several areas including, but not limited to, aircraft maintenance, ground handling, fueling, telecommunication systems and information technology services. Current economic conditions have resulted in delays from third-party service providers for spare aircraft parts, and third-party service providers have recently experienced challenges in retaining trained technicians. Delays from third-party service providers could negatively impact our ability to timely maintain our fleet currently in service. Additionally, we plan to continue bringing certain CRJ aircraft out of storage and placing such aircraft into service. Delays in receiving spare parts and/or outsourced maintenance services could delay our efforts to place stored aircraft back into service.

Further, in the event that one or more vendors experiences labor shortages, aircraft part shortages, seeks bankruptcy protection, ceases operation or fails to perform as promised, replacement services may not be readily available at competitive rates, or at all. If one of our vendors fails to perform adequately, we may experience increased costs, delays, maintenance issues, safety issues or negative public perception of our airline. Vendor bankruptcies, unionization, regulatory compliance issues or significant changes in the competitive marketplace among suppliers could

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adversely affect vendor services or force us to renegotiate existing agreements on less favorable terms. These events could result in disruptions in our operations or increases in our cost structure.

Cybersecurity incidents, hardware or software failures or other information technology disruptions may negatively impact our operations, reputation and financial condition.

The performance and reliability of our technology are critical to our ability to compete effectively. Any internal technological error, failure or large-scale external interruption in the information systems, networks, hardware, software and technological infrastructure we depend on, such as U.S. air traffic control systems, power, telecommunications or the internet (collectively, “IT Systems”), may disrupt our internal network, impact our ability to conduct our business and result in lower revenue and/or increased costs. Our IT Systems (including those provided by third parties) and information about our employees and other individuals and proprietary information belonging to our business such as trade secrets (“Confidential Information”) are vulnerable to a variety of sources of interruption due to events beyond our control, including natural disasters, terrorist attacks, telecommunications or IT System failures, computer viruses, hackers and other security issues.

In addition, we face numerous and evolving cybersecurity risks that threaten the security, confidentiality, integrity and availability of our IT Systems and Confidential Information, including from diverse threat actors such as state-sponsored organizations, opportunistic hackers and hacktivists, as well as through diverse attack vectors, such as social engineering/phishing, security breaches, malfeasance by insiders, human or technological error, computer viruses, malicious or destructive code, misconfigurations, “bugs” or other vulnerabilities in commercial software that is integrated into our (or our service providers’) IT Systems, products or services, malware (including ransomware) and other attacks, including through fraud or other means of deception. The methods used to obtain unauthorized access, disable or degrade service or attack or sabotage systems are constantly evolving, and threat actors are becoming increasingly sophisticated in using techniques and tools – including artificial intelligence – that circumvent security controls, evade detection and remove forensic evidence. As a result we may be unable to anticipate or to detect, investigate, remediate or recover from attacks or incidents for long periods of time. Further, we may not be able to prevent all data breaches, misuses of data (including Confidential Information) or other cybersecurity incidents.

There can also be no assurance that our cybersecurity risk management program and processes, including our policies, controls or procedures, will be fully implemented, complied with or effective in protecting our IT Systems and Confidential Information. Because we rely on third-party vendors and service providers for functions critical to our business, including information technology infrastructure and services, successful cyberattacks that disrupt or result in unauthorized access to third-party IT Systems can materially impact our operations and financial results. Remote and hybrid working arrangements at our company (and at many third-party service providers) also increase cybersecurity risks due to the challenges associated with managing remote computing assets and security vulnerabilities that are present in many non-corporate and home networks. Additionally, any integration of artificial intelligence into our operations, products or services, or those of our third party vendors, service providers or airline partners, is expected to pose new or unknown cybersecurity risks and challenges.

We and certain of our third-party service providers have in the past experienced cybersecurity incidents. We expect such incidents to continue in varying degrees and cannot assure our cybersecurity risk management program will prevent such incidents from occurring in the future. While no incidents have had a material impact on our operations or financial results to date, we cannot guarantee that material incidents will not occur in the future as further described in “Item 1C. Cybersecurity”. Although we previously carried cybersecurity insurance coverage in the past, we currently do not have cybersecurity insurance coverage. Any cybersecurity incident or other adverse impact to the availability, integrity or confidentiality of our IT Systems or Confidential Information could compromise our ability to operate flights or technology systems, result in the loss of Confidential Information, legal claims or proceedings (such as class actions), regulatory investigations and enforcement actions, liability or regulatory penalties, disruption to our operations, damage to our reputation, loss of existing or future customers and/or significant incident response, system restoration or remediation and future compliance costs. Any or all of the foregoing could adversely affect our business, results of operations and financial condition.

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Interruptions or disruptions in service at one of our hub airports, due to weather, system malfunctions or for any other reason, could have a material adverse impact on our operations.

We currently operate primarily through hubs supporting our major airline partners’ route networks across the United States. Nearly all of our flights either originate from or fly into one of these hubs. Our revenues depend primarily on our completion of flights and secondarily on service factors such as timeliness of departure and arrival. Any interruptions or disruptions could, therefore, severely and adversely affect us. Extreme weather such as hurricanes or tornados can cause flight disruptions, and, during periods of storms or adverse weather, our flights may be canceled or significantly delayed. We operate a significant number of flights to and from airports with potential winter related or other weather difficulties, including but not limited to, Chicago, Dallas, Denver, Detroit, Houston, Minneapolis, Salt Lake City and San Francisco. A significant interruption or disruption in service at one of our hubs, due to adverse weather, system malfunctions, air traffic control disruptions, airport construction, security closures, protests or otherwise, could result in the cancellation or delay of a significant portion of our flights and, as a result, could have a severe adverse impact on our operations and financial performance.

We may experience difficulty in recruiting, training and retaining a sufficient number of qualified pilots.

Our operations rely on recruiting and training qualified pilots. FAA regulations regarding personnel certification and qualifications have limited and, along with potential future changes in FAA regulations, could continue to limit the number of qualified new entrants that we could hire. In the event we are unable to recruit and train a sufficient number of qualified pilots, we may be unable to operate requested flight schedules under our capacity purchase agreements, which could result in a reduction in revenue and operating inefficiencies, such as incremental new-hire training costs, and our business and financial condition could be adversely affected.

Our operations also rely on retaining qualified pilots, including captains and first officers. Our pilots may seek employment at major airlines, low-cost carriers or cargo carriers, which generally offer higher salaries and more extensive benefit programs than regional airlines. A shortage of captains caused a sequential reduction in our annual block hours in 2022 and 2023. Although captain attrition levels eased in 2024 and we were operating full flight schedules requested by our major airline partners by the end 2025, future elevated pilot attrition levels could constrain our flight schedules. Operating at reduced flying schedules results in operating inefficiencies which negatively impacts our financial results. If we request our major airline partners to reduce our flight schedules due to pilot or other labor shortages, our major airline partners may seek to enforce financial penalties or reduce the compensation otherwise payable to us under our capacity purchase agreements, which would likely have a negative impact on our revenues and adversely impact our financial condition.

We have experienced, and may continue to experience, difficulty recruiting and retaining other operational personnel.

In addition to pilots, our operations rely on recruiting and retaining other qualified personnel, including, but not limited to, flight attendants, maintenance technicians, dispatch personnel, crew support and other operational personnel. Our operational personnel may seek employment at major airlines, which generally offer higher salaries and more extensive benefit programs than regional airlines. Additionally, alternative career opportunities in other industries, developments in artificial intelligence or other macroeconomic factors could increase our attrition and/or negatively impact our ability to recruit new employees. Should the attrition of our employees sharply increase, we may not be able to hire sufficient personnel to replace those leaving. In the event we are unable to hire and retain other qualified personnel, we may be unable to operate requested flight schedules under our capacity purchase agreements, which could result in a reduction in revenue and operating inefficiencies, such as incremental new-hire training costs, and our business and financial condition could be adversely affected.

The occurrence of an aviation accident involving our aircraft would negatively impact our operations and financial condition.

An accident or incident involving one of our aircraft could result in significant potential claims of injured passengers and others, as well as repair or replacement of a damaged aircraft and its consequential temporary or permanent loss from service. In the event of an accident, our liability insurance may not be adequate to offset our exposure to potential claims and we may be forced to bear substantial losses from the accident. Substantial claims resulting from an accident in excess of our related insurance coverage would harm our operational and financial results. Moreover, any aircraft accident or incident, even if fully insured, could cause a public perception that our operations are

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less safe or reliable than other airlines and could affect our relationships with our major airline partners. In addition, any accident or incident involving a type of aircraft in our fleet could result in air travelers being reluctant to fly on our aircraft, and adversely impact our business, results of operations and financial condition.

We are subject to significant governmental regulation and potential regulatory changes.

All interstate air carriers, including SkyWest, are subject to regulation by the DOT, the FAA and other governmental agencies. Regulations promulgated by the DOT primarily relate to economic aspects of air service. The FAA requires operating, air worthiness and other certificates; approval of personnel who may engage in flight, maintenance or operation activities; recordkeeping procedures in accordance with FAA requirements; and FAA approval of flight training and retraining programs. We cannot predict whether we will be able to comply with all present and future laws, rules, regulations and certification requirements or that the cost of continued compliance will not have a material adverse effect on our operations. We incur substantial costs in maintaining our current certifications and otherwise complying with the laws, rules and regulations to which we are subject. A decision by the FAA to ground, or require time-consuming inspections of or maintenance on, all or any of our aircraft for any reason may have a material adverse effect on our operations. In addition to state and federal regulation, airports and municipalities enact rules and regulations that affect our operations. From time to time, various airports throughout the country have considered limiting the use of smaller aircraft, such as our aircraft, at such airports. The imposition of any limits on the use of our aircraft at any airport at which we operate could have a material adverse effect on our operations.

We cannot predict the impact of potential regulatory changes that may affect our business or the airline industry as whole, including the potential impact of tariffs on aircraft deliveries. However, it is possible that these changes could adversely affect our business. Our business may be subject to additional costs or loss of government subsidies as a result of potential regulatory changes, which could have an adverse effect on our operations and financial results.

Changes to U.S. tariff and import/export regulations may have a negative effect on our suppliers and/or service providers and, in turn, could have a material adverse impact on our financial condition.

The United States has recently enacted significant tariffs in excess of historical levels, and United States trade policies continue to evolve. Accordingly, there continues to exist significant uncertainty about the future relationship between the United States and other countries with respect to such trade policies, treaties and tariffs. These developments, or the perception that any of them could occur, may have a material adverse effect on global economic conditions and the stability of global financial markets. The recently enacted tariffs have had a significant impact on the cost of aircraft parts and supplies sourced internationally, including but not limited to, the non-U.S. manufactured components used on the E175 aircraft we import from Brazil. These added costs negatively impact us.

Compliance, or failure to comply, with new or existing laws, regulations and other requirements relating to the privacy, security and handling of information about individuals could adversely affect our business, results of operations, or financial condition.

We receive information related to employees and other individuals in order to run our business. Laws, regulations and other requirements relating to the privacy, security and handling of information about individuals, alongside the application and interpretation of such requirements, are constantly evolving and developing and subject to change, creating a complex compliance environment. There has been heightened legislative and regulatory focus on data privacy and security in the United States and elsewhere, including in relation to cybersecurity incidents, and it is possible that new laws, amendments to or interpretations of existing laws, regulations and other requirements may require us to incur significant costs, implement new processes or change our handling of information and business operations. In addition, any failure or perceived failure by us to comply with laws, regulations and other requirements relating to the privacy, security and handling of information could result in legal claims or proceedings (including class actions), regulatory investigations or enforcement actions. We could incur significant costs in investigating and defending such claims and, if found liable, pay significant damages or fines or be required to make changes to our business. Further, these proceedings and any subsequent adverse outcomes may subject us to significant negative publicity and an erosion of trust. If any of these events were to occur, our business, results of operations, and financial condition could be materially adversely affected.

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Terrorist activities or warnings have dramatically impacted the airline industry and will likely continue to do so.

Past terrorist attacks and their aftermath have negatively impacted the airline industry in general, including our operations. If additional terrorist attacks are launched against the airline industry, there will be lasting consequences of such attacks, which may include loss of life, property damage, increased security and insurance costs, increased concerns about future terrorist attacks, increased government regulation and airport delays due to heightened security. Additionally, terrorist attacks and the fear of such attacks could negatively impact the airline industry, and result in decreased passenger traffic and yields, increased flight delays or cancellations associated with new government mandates, as well as increased security, fuel and other costs. We cannot provide any assurance that these events will not harm the airline industry generally or our operations or financial condition in particular.

Risks Related to Our Code-Share Agreements with Our Major Airline Partners

Our business model is dependent on code-share agreements with four major airline partners.

Our business model depends on major airlines electing to contract with us instead of operating their own aircraft or regional jets. Some regional airlines are owned by a major airline. We have no guarantee that in the future our major airline partners will choose to enter into contracts with us instead of operating their own aircraft or regional jets or award more flying contracts to another regional airline. Our major airline partners are not prohibited from doing so under our code-share agreements. A decision by any of our major airline partners to phase out code-share relationships and instead acquire and operate their own regional jets or regional airline, or award more flying contracts to another regional airline, could have a material adverse effect on our financial results. Additionally, our major airline partners may be limited in the number of regional aircraft they can operate in their network due to aircraft scope limitations they have with their labor groups. Scope limitations could limit our ability to increase the number of aircraft operating under our code-share agreements.

As of December 31, 2025, 353 out of our total 487 aircraft in scheduled service were operating under a capacity purchase agreement or a prorate agreement with either United or Delta. If our code-share relationship with United or Delta were terminated, our operations would be significantly impacted and we would not likely have an immediate source of revenue or earnings to offset such loss. A termination of either of these relationships would likely have a material adverse effect on our financial condition, operating revenues and net income unless we are able to enter into satisfactory substitute arrangements for the utilization of the affected aircraft by other code-share partners, or, alternatively, obtain the airport facilities and gates and make the other arrangements necessary to fly as an independent airline. We may not be able to enter into substitute code-share agreements, and any such arrangements we might secure may not be as favorable to us as our current agreements. Operating SkyWest Airlines as an airline independent from our major airline partners would be a significant departure from our business plan and would likely require significant time and resources and may not be a viable alternative.

Additionally, each of our agreements with our major airline partners is subject to certain early termination provisions, including uncured material performance breaches. We also currently use the systems, facilities and services of our major airline partners to support a significant portion of our operations, including airport and terminal facilities and operations, information technology support, ticketing and reservations, scheduling, dispatching, fuel purchasing and ground handling services. If our major airline partners cease to maintain any of these systems, close any of these facilities or no longer provide these services to us, due to termination of one of our code-share agreements, a strike or other labor interruption by personnel working for our major airline partners or for any other reason, we may not be able to obtain alternative systems, facilities or services on terms and conditions as favorable as those we currently receive, or at all. Since our revenues and operating profits are dependent on our level of flight operations, we could then be forced to significantly reduce our operations.

Reduced utilization levels of our aircraft under our capacity purchase agreements with our major airline partners would have a material adverse impact on the results of our operations and financial condition.

Under our capacity purchase agreements with our major airline partners, a portion of our compensation is based on pre-determined rates that are applied to our production, such as block hours, for the period. We also receive fixed monthly payments related to overhead costs and aircraft ownership costs from our major airline partners. Reduced utilization of our aircraft under our capacity purchase agreements will likely have a material adverse impact on the results of our operations and financial condition. In recent years, compensation under our capacity purchase agreements

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with certain major airline partners have a lower percentage of contractual fixed monthly payments and a higher percentage of contractual variable payments. A compensation structure that is weighted more to utilization and less to fixed payments could have a material adverse impact on the results of our operations and financial condition if utilization levels decrease. Additionally, amendments to our capacity purchase agreements that result in changes to our future scheduled fixed monthly payments will likely impact the timing of our revenue recognition. During the year ended December 31, 2025, the revenue we recognized was $57.8 million more than the fixed monthly cash payments received. As of December 31, 2025, we have received a cumulative total of $264.6 million in fixed monthly cash payments that we have not recognized as revenue. Although we currently anticipate we will recognize previously deferred revenue for the year ending December 31, 2026, future contract amendments or reduced utilization levels of our aircraft could negatively impact the timing of our revenue recognition.

Our major airline partners may experience events that negatively impact their financial strength or operations, which may also negatively impact our operations.

Our business model relies significantly on our major airline partners, and we may be negatively affected by their financial and operating strength. Events impacting airline travel, including pandemics or recessions, that negatively impact the financial strength of our major airline partners or have a long-term effect on the use of our major airline partners by airline travelers would likely have a material adverse effect on our business, financial condition and results of operations. If our major airline partners experience adverse effects to their operational or financial condition, they may be unable to make payments due to us under their capacity purchase agreements or may need to reduce utilization of our aircraft. Additionally, if one of our major airline partners undergoes bankruptcy, our agreement with such partner may not be assumed in bankruptcy and could be terminated. This and other events, which are outside of our control, could have a material adverse effect on our business, financial condition and results of operations.

Our growth may be limited with our major airline partners' flight systems.

Additional growth opportunities within our major airline partners’ flight systems are limited by various factors, including a limited number of regional aircraft each major airline partner can operate in its regional network due to scope limitations in its own labor agreements. Except as contemplated by our existing code-share agreements, we cannot be sure that our major airline partners will contract with us to fly any additional aircraft. We may not receive additional growth opportunities, or we may agree to modifications to our code-share agreements at less favorable terms in order to obtain additional aircraft, or for other reasons. Certain of our competitor regional airlines may agree to flying contract terms at lower rates or unfavorable contract terms, which could affect the terms offered to us. Even if we are offered growth opportunities by our major airline partners, those opportunities may involve economic terms or financing commitments that are unacceptable to us. Additionally, our major airline partners may reduce the number of regional jets in their system by not renewing or extending existing flying agreements with regional operators. Any one or more of these factors may reduce or eliminate our ability to expand our flight operations with our existing major airline partners.

There are long-term risks related to supply and demand of regional aircraft associated with our regional airline services strategy.

Various factors could change our major airline partners’ long-term strategy in using regional aircraft to support their network objectives. Such changes could result in a reduction in the number of regional aircraft our major airline partners operate in the future. If our major airline partners’ future strategies include a material reduction in regional aircraft generally or for specific aircraft types that we operate, the resulting decrease in demand in the aircraft we operate could have a material negative impact on our business and financial condition. Additionally, future developments of electric-powered aircraft designed to operate on routes typically served by regional aircraft could impact our major airline partners’ strategy and result in a reduction of demand or increase our capital expenditures and could have a material negative impact on our business and financial condition.

Due, in part, to the dynamic nature of the airline industry, major airlines may also make other strategic changes, such as changing or consolidating hub locations or operating mainline aircraft on routes previously served using regional aircraft. If our major airline partners were to make changes such as these in their strategy and operations, our operations and financial results could be adversely impacted.

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Revenue levels from our prorate agreements with our major airline partners may not continue to increase and are terminable upon notice of 180 days or less. Additionally, revenue levels from our SWC operation may not continue to increase.

While our prorate agreements and SWC revenue increased $153.0 million, or 33.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, there is no assurance our prorate revenue or SWC revenue will continue to increase in 2026 or thereafter. Future increases in prorate revenue is based on several factors subject to change including, but not limited to, passenger demand on prorate routes, approval of new routes with our major airline partners, maintenance required to return parked aircraft for service and labor availability. Additionally, there is no assurance we will continue to be awarded subsidy contracts under the EAS program on applicable prorate routes from the DOT going forward. Additionally, there is no assurance the EAS program will continue to receive funding by the U.S. Government. Future increases in SWC revenue is also based on several factors subject to change including, but not limited to, corporate or institutional demand for charter flights, competition for charter business and availability of other charter alternatives, such as ground transportation. SWC was granted commuter authority from the DOT in 2025, allowing SWC to expand its route strategy. There is no assurance that SWC will be awarded EAS markets or other commuter routes in the future, nor that demand for its services will materialize as anticipated.

Our prorate flying agreements with our major airline partners permit each major airline partner to terminate the agreement in its discretion by giving us notice of 180 days or less. If one of our major airline partners elects to terminate a flying agreement with notice of 180 days or less, our ability to use the aircraft under an alternative agreement with similar economics may be limited, which could negatively impact our financial results. Additionally, even if we could subsequently place the aircraft into service with a different major airline partner, of which there can be no assurance, we likely would incur inefficiencies and incremental costs, such as changing the aircraft livery, during the transition period, which would negatively impact our financial results.

Disagreements regarding the interpretation of our code-share agreements with our major airline partners could have an adverse effect on our operating results and financial condition.

Long-term contractual agreements, such as our code-share agreements, are subject to interpretation and disputes may arise under such agreements if the parties to an agreement apply different interpretations to that agreement. Those disputes may divert management’s time and resources from the core operation of the business, and may result in litigation, arbitration or other forms of dispute resolution.

We have previously experienced disagreements with our major airline partners regarding the interpretation of various provisions of our code-share agreements. Some of those disagreements have resulted in litigation, and we may be subject to additional disputes and litigation in the future. Furthermore, there can be no assurance that any or all future disputes and related proceedings, if commenced, would be resolved in our favor. An unfavorable result in any such proceeding could have adverse financial consequences or require us to modify our operations. Such disagreements and their consequences could have an adverse effect on our relationship with our major airline partners, operating results and financial condition.

We operate on-demand charter flights through our wholly-owned subsidiary, SWC, and such operations involve significant risk.

SWC offers on-demand charter service using CRJ200 aircraft in a 30 seat configuration under its own FAA operating certificate. As we pursue growth opportunities with SWC, there may be significant risks, including that SWC may divert management’s attention or the Company’s resources from our core business and strategies. Additionally, the anticipated objectives of SWC, such as those associated with its recent DOT approval to operate under commuter authority, may not materialize or may take longer to materialize than anticipated.

The airline industry is highly competitive, which could adversely affect our operating results and financial condition.

The airline industry is highly competitive. We compete with other regional airlines on various factors including, but not limited to, labor resources, including pilots and mechanics; low operating costs; financial resources, including the ability to finance aircraft at competitive terms; geographical infrastructure; and overall customer service levels relating to on-time arrival and flight completion percentages. Our major airline partners rely on us to fly passengers from various locations into their hubs under our code-share agreements at competitive terms. We not only compete with other regional

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airlines, some of which are owned by or operated as code-share partners of major airlines, but we also indirectly face competition from low-cost carriers, such as Southwest, Allegiant, Spirit, JetBlue, Breeze and others, who compete with our major airline partners on many routes we operate. Certain of our competitors, including wholly-owned regional airline subsidiaries of our major airline partners, may have access to significantly greater financial and other resources than we do. Moreover, federal deregulation of the industry allows competitors to rapidly enter our markets and to quickly discount and restructure fares. The inability to remain competitive on the various factors valued by our major airline partners could adversely affect our operating results and financial condition.

Risks Related to Our Operating Costs and Personnel

Increases in labor costs, including pilot costs, flight attendant costs, maintenance costs and overhead costs may result in lower operating margins under our capacity purchase agreements.

Under our capacity purchase agreements with our major airline partners, a portion of our compensation is based upon pre-determined rates typically applied to production statistics (such as departures, block hours, flight hours and number of aircraft in service each month). The primary operating costs intended to be compensated by the pre-determined rates include our labor and training costs, aircraft maintenance expenses and overhead costs. During the year ended December 31, 2025, approximately 93.0% of our code-share operating costs were reimbursable at pre-determined rates and 7.0% of our code-share operating costs were directly reimbursed costs, often referred to as pass-through costs. Our business is labor intensive, requiring large numbers of pilots, flight attendants, mechanics and other personnel. Labor costs constitute a significant percentage of our total operating costs. Increases in our labor costs could result in a material reduction in our earnings. For example, during the years ended December 31, 2025 and 2024, our salary, wage and benefit costs constituted approximately 45.3% and 48.3% of our total operating costs, respectively. Various factors may cause us to significantly increase compensation to our labor groups, such as higher compensation offered by other airlines or other factors impacting the labor market in the United States. Our inability to offset increased labor costs through rate increases under our capacity purchase agreements with all our major airline partners could negatively impact our operating profitability. Currently, we believe our labor costs are competitive relative to other regional airlines. However, we cannot provide assurance that our labor costs going forward will remain competitive because of changes in supply and demand for labor in the regional airline industry. We compete against other airlines and businesses for labor in many highly skilled positions. If we are unable to hire, train and retain qualified employees at a reasonable cost, sustain employee engagement in our strategic vision, or if we are unsuccessful at implementing succession plans for our key staff, we may be unable to grow or sustain our business. Labor costs to recruit, incentivize and retain skilled employees may significantly increase in the future due to increased competition for the limited number of qualified industry personnel. Attrition rates that exceed our ability to hire and replace applicable workgroups could negatively impact our ability to generate revenue, negatively impact our operating results, increase our training and labor costs and our business prospects could be harmed.

Additionally, our aircraft maintenance costs may increase annually as our fleet ages at a higher rate than our pre-determined rates in our capacity purchase agreements. Also, on an individual aircraft basis, various in-depth maintenance procedures are typically scheduled to occur at multi-year intervals, which can result in maintenance expense fluctuations year-to-year. If our operating costs for labor, aircraft maintenance and overhead costs exceed the compensation earned from our pre-determined rates under our capacity purchase agreements, our financial position and operating results will be negatively affected.

Increased labor costs, pilot and other labor availability, labor disputes and unionization of our workforces may adversely affect our ability to conduct our business and reduce our profitability.

Any new labor agreement entered into by other regional carriers with their work forces may result in higher industry wages and increase pressure on us to increase the wages and benefits of our employees. If our labor agreements become uncompetitive with respect to employee compensation or work rules, we may experience higher employee attrition and low employee job satisfaction, which may negatively impact our operating and financial results.

Our employees are represented by in-house associations; however, organizing efforts to join national unions among those employees occur from time to time. Such efforts will likely continue in the future and may ultimately result in some or all of our employees being represented by one or more national unions. If our employees were to unionize or be deemed to be represented by one or more national unions, negotiations with these unions could divert management’s

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attention and disrupt operations. Additionally, representation by a national union may limit our ability to have open communications with our employees, negatively impact our company culture and deter our ability to amend and increase our compensation packages for market conditions in a timely manner, which may result in higher employee dissatisfaction and attrition. Moreover, we cannot predict the outcome of any future negotiations relating to union representation or collective bargaining agreements. A national union soliciting to represent our employees may represent employees at mainline carriers or other regional airlines and may have conflicting interests with those of our employees or SkyWest. Future collective bargaining agreements involving a national union and our employees may negatively impact our relationship with our employees and have an adverse impact on our operating and financial results.

We may experience an increase in fuel prices in our prorate and SWC operations.

Dependence on foreign imports of crude oil, limited refining capacity and the possibility of changes in government policy on jet fuel production, transportation and marketing make it difficult to predict the future availability of jet fuel. If there are additional outbreaks of hostilities or other conflicts in oil-producing areas or elsewhere, or a reduction in refining capacity (due to weather events, for example), or governmental limits on the production or sale of jet fuel, there could be a reduction in the supply of jet fuel and significant increases in the cost of jet fuel. Additionally, our operations may experience disruptions from temporary fuel shortages by our fuel vendors resulting from fuel quality issues, refueling disruption or other challenges. Major reductions in the availability of jet fuel or significant increases in its cost, or a continuation of high fuel prices for a significant period of time, would have a material adverse impact on us.

Pursuant to our capacity purchase agreements, our major airline partners have agreed to bear the economic risk of fuel price fluctuations on our contracted flights. However, we bear the economic risk of fuel price fluctuations on our prorate and SWC operations. As of December 31, 2025, we operated 28 CRJ200s under a prorate agreement with United, 14 CRJ550s under a prorate agreement with Delta and 10 CRJ900s under a prorate agreement with American. As of December 31, 2025, we had 11 CRJ200s available for on-demand charter service through SWC. Our operating and financial results with respect to these prorate agreements and charter services can be negatively affected by the price of jet fuel in the event we are unable to increase our passenger fares. Additionally, in the event of prolonged low fuel prices, our competitors may lower their passenger ticket prices on routes that compete with our prorate or charter markets, which could negatively impact our prorate and charter revenue.

Our business could be harmed if we lose the services of our key personnel.

Our business depends upon the efforts of our president and chief executive officer, Russell A. Childs, and our other key management and operating personnel. We may have difficulty replacing management or other key personnel who cease to be employed by us and, therefore, the loss of the services of any of these individuals could harm our business. We do not maintain key-person insurance on any of our executive officers.

We may experience credit losses in excess of our estimated credit loss reserves.

Our financial results include estimated credit loss reserves associated with our accounts receivables, notes receivables and third-party debt guarantees. Our actual credit losses may exceed our estimated allowances, for a number of factors including but not limited to, counterparties’ bankruptcy, undervalued collateral and/or inability to liquidate collateral, which could negatively impact our financial condition and financial results.

We have guaranteed the indebtedness of third parties that may default on their debt and require us to pay.

In 2022, we agreed to guarantee debt for a commuter air carrier that operates smaller aircraft than we operate. The debt is secured by the air carrier’s aircraft and engines and has a five-year term. At December 31, 2025, the outstanding debt for the guarantee was $12.6 million. The purpose of this arrangement is to increase the potential number of commercial pilots in our hiring pipeline, particularly for commercial pilots who are interested in progressing their career and operating larger regional aircraft at SkyWest Airlines. In the event of default, if we are unable to sell the collateral, or the fair value is less than the required payment, it could negatively impact our financial condition and financial results. Additionally, there is no guarantee that the relationship with this entity will have a favorable effect on our ability to recruit pilots.

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Risks Related to Operating and Leasing Regional Jet Aircraft and Engines

We are reliant on two aircraft manufacturers and one engine manufacturer.

We operate aircraft manufactured by Bombardier and Embraer. The issuance of FAA or manufacturer directives restricting or prohibiting the use of any Bombardier or Embraer aircraft types we operate could negatively impact our business and financial results. We are also dependent upon General Electric as the sole manufacturer of engines used on the aircraft we operate. Our operations could be materially and adversely affected by the failure or inability of Bombardier, Embraer, General Electric or other certified replacement part companies to provide sufficient parts or related maintenance and support services to us on a timely manner. Additionally, timing and availability of new aircraft deliveries could be delayed beyond our control.

We have a significant amount of contractual long-term debt obligations.

As of December 31, 2025, we had a total of approximately $2.4 billion in total long-term debt obligations. Our long-term debt obligations included $2.2 billion of debt used to finance aircraft and spare engines and $200.6 million related to borrowings under the Payroll Support Program Agreements with U.S. Department of the Treasury (“Treasury”). Various changes in airline industry and macroeconomic or other conditions could negatively impact our ability to obtain additional financing to support additional expansion plans or divert cash flows from operations and expansion plans to service the fixed obligations.

Under our capacity purchase agreements, our major airline partners compensate us for our costs of owning the aircraft on a monthly basis. The aircraft compensation structure varies by agreement but is intended to compensate us for using our aircraft while under contract. In the event any of our major airline partners defaults under a capacity purchase agreement or we are unable to extend the flying contract terms on aircraft that we have ongoing financial obligations for, our financial position and financial results could be materially adversely affected.

In addition, we may seek material amounts of additional financial liquidity in the short-term, which may include drawing down on SkyWest Airlines’ line of credit, the issuance of secured debt securities and/or the entry into other debt facilities, among other financial instruments. There can be no assurance as to the timing of any such drawdown or issuance, which may be in the near term, or that any such additional financing will be completed on favorable terms, or at all.

If our liquidity is materially diminished, we might not be able to timely pay our debt or other obligations or comply with certain covenants under SkyWest Airlines’ line of credit or with other material provisions of our contractual obligations.

We expect to issue debt to finance our anticipated aircraft purchases.

As of December 31, 2025, we have firm purchase commitments for 69 E175 aircraft and spare engines totaling $2.3 billion. Over the next several years, as we continue to add new aircraft to our fleet, we anticipate using significant amounts of capital to acquire these aircraft.

There can be no assurance that our operations will generate sufficient cash flow or liquidity to enable us to obtain the necessary aircraft acquisition financing to replace our current fleet, or to make required debt service payments related to our existing or anticipated future obligations. Even if we meet all required debt and other financial obligations, the amount of our long-term obligations could negatively affect our financial condition and results of operations in many ways, including:

If we need additional capital and cannot obtain such capital on acceptable terms, or at all, we may be unable to realize our fleet replacement plans or take advantage of unanticipated opportunities.

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The residual value of our owned aircraft may be less than estimated in our depreciation policies.

As of December 31, 2025, we had approximately $5.8 billion of property and equipment and related assets, net of accumulated depreciation. In accounting for these long-lived assets, we make estimates about the expected useful lives of the assets, the expected residual values of certain of these assets, and the potential for impairment based on the fair value of the assets and the cash flows they generate. Factors indicating potential impairment include, but are not limited to, amendments to our capacity purchase agreements that impact the anticipated cash flows for our aircraft, significant decreases in the market value of the long-lived assets, a significant change in the condition of the long-lived assets and operating cash flow losses associated with the use of the long-lived assets. In the event the estimated fair value of any of our aircraft types is determined to be lower than the net book value of the applicable aircraft type, such aircraft type in our fleet may be impaired and may result in a material impairment charge. An impairment on any of our aircraft types we operate or an increased level of depreciation expense resulting from a change to our depreciation policy and assumptions could result in a material negative impact to our financial results. Future decisions to sell specific aircraft could potentially result in write-downs for aircraft held-for sale.

We lease aircraft and engines to third parties and the lessee may default under the lease terms, which could negatively affect our financial condition, cash flow and results of operations.

We leased five CRJ900 aircraft, 40 CRJ700/CRJ550 aircraft, and several CRJ aircraft engines to third parties as of December 31, 2025. In the event a lessee defaults under the terms of the lease agreement, we may incur additional costs, including legal and other expenses necessary to repossess the aircraft or engines, particularly if the lessee is contesting the proceedings or is in bankruptcy. We could also incur substantial maintenance, refurbishment or repair costs if a defaulting lessee fails to pay such costs and where such maintenance, refurbishment or repairs are necessary to put the aircraft or engines in suitable condition for remarketing or sale. We may also incur storage costs associated with any aircraft or engine that we repossess and are unable to place immediately with another lessee. Even if we are able to immediately place a repossessed aircraft or engine into service ourselves, or place the aircraft and engines under another lessee, we may not be able to do so at a similar or favorable lease rate. A lessee default under one of our lease agreements could negatively affect our financial condition, cash flow and results of operations.

We have entered into a strategic engine leasing joint venture that operates under joint control with a third party that may not meet our investment objectives.

We have entered into a strategic engine joint venture with a third party to lease engines to other parties. This strategic venture involves investment risks, including:

● we may not realize a satisfactory return on our investment;

● the joint venture may divert management’s attention from our core business;

Although we currently participate in the management of our engine joint venture, our joint venture agreement requires unanimous approval over all significant actions. In addition, if we were unable to resolve a dispute with our joint venture partner that retains material managerial veto rights, we might reach an impasse that could require us to dissolve the joint venture at a time and in a manner that could negatively affect our financial results.

We entered into an arrangement with a third party to develop demand for electric-powered aircraft that involves significant uncertainty and risk.

We have entered into a strategic arrangement with Eve to develop a network of deployment for Eve’s eVTOL aircraft. To support this effort, SkyWest may provide assistance to Eve on vehicle design, vertiport specifications and the certification roadmap for eVTOL operations. This strategic arrangement involves significant uncertainty risks, including:

● future customer demand for eVTOL aircraft is uncertain;

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● we may not realize a satisfactory return on our investment; and

● our partner might fail to fulfill its obligations.

The effect of any, or some combination, of the foregoing risks could affect our arrangement with Eve and future benefits may not materialize.

As of December 31, 2025, we held 1.1 million shares of common stock of Eve (NYSE: EVEX). At December 31, 2025, the fair value of our holdings in Eve was $4.3 million and there is no assurance the value of Eve common stock will increase.

We have invested in Contour, which involves significant risk and may not produce a satisfactory return on our investment.

As of December 31, 2025, we have invested $25.0 million in Contour, a 14 CFR Part 135 air carrier. This strategic investment involves significant risks, including:

● we may not realize a satisfactory return on our investment;

● the investment may divert management’s attention from our core business; and

The effect of any, or some combination, of the foregoing risks could negatively affect our financial results.

We are subject to various environmental requirements, including laws and regulations related to climate change and emissions. Compliance with new or existing environmental requirements could materially and adversely affect the Company's business plans, strategies and results of operations.

We are subject to federal, state and local laws and regulations relating to the protection of the environment, including those relating to aircraft and ground-based emissions, discharges into water systems, safe drinking water and the management of hazardous substances and waste materials. Certain legislative bodies and regulatory authorities are increasingly focused on climate change and have taken actions to implement additional laws, regulations and programs intended to protect the environment and may require specific reporting requirements. For example, the federal government, as well as several state and local governments, have implemented legislative and regulatory proposals and voluntary measures intended to reduce greenhouse gas emissions. Compliance with laws, regulations and other programs intended to reduce emissions or otherwise protect the environment may require us to reduce our emissions, secure carbon offset credits or otherwise pay for emissions, or make capital investments to modify certain aspects of our operations to reduce emissions. Future policy, legal and regulatory developments relating to the protection of the environment could increase our costs and have a material adverse effect on our operations.

We support our major airline partners’ goals and strategies to reduce carbon emissions on flights we operate under our code-share agreements and, as we work to support each of our major airline partners’ goals and strategies, initiatives to reduce emissions may not materialize and could materially and adversely affect the Company's business plans, strategies and results of operations.

During 2025, we produced approximately 6.3 million metric tons of CO2e primarily from jet fuel emissions, using industry emissions factors for jet fuel gallons consumed on flights we operated under our code-share agreements. Under our flying contracts, our major airline partners are responsible for fuel procurement and selection of the type of aircraft we operate and have significant control over our flight schedules. Accordingly, we anticipate our major airline partners will take responsibility for carbon emissions incurred on our contract flights. Each of our major airline partners may have different goals, strategies and timelines to reduce carbon emissions on our flights. We are largely dependent on the direction from our major airline partners regarding long-term fuel saving initiatives such as engine innovations reducing fuel consumption, use of sustainable alternative fuels, carbon sequestration programs, air traffic flow routing efficiencies, among other initiatives. Each of our major airline partners may pursue alternative strategies and goals to reduce carbon emissions on flights we operate under our code-share agreements that may impact the rate at which we are able to reduce our carbon emissions, if at all. There is no assurance our major airline partners will take responsibility for

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carbon emissions incurred under our contract flights and no assurance future long-term fuel saving initiatives will materialize. In the event we pursue initiatives to reduce our carbon emissions, the cost could materially and adversely affect our business plans and results of operations.

Risks Related to Dividends, Share Repurchases and Our Common Stock

We cannot assure that we will resume dividend payments in the future and we cannot assure that we will continue stock repurchases in the future.

Historically, we have paid dividends and repurchased shares of our common stock in varying amounts. From April 2020 through September 30, 2022, we were restricted from paying dividends and repurchasing shares of our common stock under three Payroll Support Program Agreements and under a loan agreement with Treasury. During 2023, we resumed repurchasing shares of our common stock. We have not paid a dividend since 2020.

There can be no assurance that we will resume our past practice of paying dividends on our common stock or that we will have the financial resources to pay such dividends. The future payment of dividends will depend upon our financial condition, alternative uses of the Company’s cash and results of operations and other factors deemed relevant by our board of directors.

In May 2023, our board of directors approved a share repurchase program, pursuant to which we are authorized to repurchase up to $250 million of our common stock and in May 2025, the Board approved a $250 million increase to the existing stock repurchase program. Under our repurchase program we are authorized to repurchase such shares of common stock at prevailing market prices in the open market, in privately negotiated transactions or by other means in accordance with federal securities laws. Depending on market conditions and other factors, such repurchases may commence or be suspended from time to time by management without prior notice. The actual timing, number and value of shares repurchased will be determined by our management in its discretion. The number of shares of common stock that we may repurchase, including pursuant to the share repurchase program, will depend upon our financial condition and results of operations and other factors deemed relevant by our board of directors. There also can be no assurance that we will continue repurchasing shares of common stock under our current authorization, that our board of directors will approve additional share repurchase programs in the future or that we will have the financial resources to repurchase shares of common stock in the future.

Repurchases of our common stock pursuant to our share repurchase program and any future dividends could affect our stock price and increase its volatility. Additionally, our share repurchase program and any future dividends may reduce our cash reserves, which may impact our ability to finance future growth and to pursue possible future strategic opportunities and acquisitions.

Our common stock price may fluctuate significantly.

Volatility in our common stock price may prevent holders from selling shares at or above the prices paid for them. During the year ended December 31, 2025, our common stock closing price varied between a high of $123.72 and a low of $79.41. The market price of our common stock may fluctuate significantly for a variety of reasons, including, but not limited to: general market, political and other economic conditions; labor availability, including regional airline pilots; new regulatory pronouncements or changes in regulatory guidelines; announcements concerning the airline industry, our major airline partners or competitors; the market’s reaction to our quarterly or annual earnings or those of other companies in the airline industry; failure to meet financial analysts’ performance expectations or changes in recommendations by financial analysts for our common stock or the stock of other airlines; significant sales of our common stock, and other risks described in these “Risk Factors.” In recent periods, the stock market has experienced extreme volatility, significantly impacting the market price of securities issued by many companies, including us and other companies in our industry.

Provisions of our articles of incorporation, by-laws and code-share agreements may limit the ability or desire of others to gain control of our Company.

Our ability to issue shares of preferred and common stock without shareholder approval may have the effect of delaying or preventing a change in control and may adversely affect the voting and other rights of the holders of our common stock, even in circumstances where such a change in control would be viewed as desirable by most investors.

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The provisions of the Utah Control Shares Acquisitions Act or other related regulations and laws may also discourage the acquisition of a significant interest in or control of our Company. Additionally, our code-share agreements contain termination and extension trigger provisions related to change in control type transactions that may have the effect of deterring a change in control of our Company.

General Risk Factors

We may be a party to litigation in the normal course of business or otherwise, which could affect our financial condition and results of operations.

We may become party to or otherwise involved in legal proceedings, claims and government inspections or investigations and other legal matters, arising in the ordinary course of our business or otherwise, including, but not limited to those related to injury or tort, environmental, employment and commercial legal issues. Legal proceedings can be complex and take many months, or even years, to reach resolution, with the final outcome depending on a number of variables, some of which are not within our control. Litigation is subject to significant uncertainty and may be expensive, time-consuming and disruptive to our operations. Although we will vigorously defend ourselves in such legal proceedings, their ultimate resolution and potential financial and other impacts on us are uncertain. If a legal proceeding is resolved against us, it could result in significant compensatory damages or injunctive relief that could materially adversely affect our financial condition, results of operations and cash flows.

The adoption of new tax legislation or changes to existing tax laws and regulations could adversely affect our financial condition or results of operations.

We are subject to tax laws and regulations of the U.S. federal, state and local governments as well as various non-U.S. jurisdictions. Potential changes in existing tax laws, including future regulatory guidance, may impact our effective tax rate and tax payments. There can be no assurance that changes in tax laws or regulations, both within the United States and the other jurisdictions in which we operate, will not materially and adversely affect our effective tax rate, tax payments, financial condition and results of operations. Similarly, changes in tax laws and regulations that impact our major airline partners, customers or the economy generally may also impact our financial condition and results of operations.

In addition, tax laws and regulations are complex and subject to varying interpretations, and any significant failure to comply with applicable tax laws and regulations in all relevant jurisdictions could give rise to substantial penalties and liabilities. Any changes in enacted tax laws, rules or regulatory or judicial interpretations; any adverse outcome in connection with tax audits in any jurisdiction; or any change in the pronouncements relating to accounting for income taxes could materially and adversely impact our effective tax rate, tax payments, financial condition and results of operations.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None

ITEM 1C. CYBERSECURITY

Cybersecurity Risk Management and Strategy

Our approach to mitigating information technology and cybersecurity risk comprises a range of activities with the primary objective of maintaining the confidentiality, integrity and availability of our critical IT Systems and information related to our business. Although IT Systems are inherently vulnerable to interruption due to a variety of sources, we have aligned our cybersecurity risk management program, including our processes and controls, with certain applicable and relevant guidelines. For example, we have aligned our processes with the National Institute of Standards and Technology Cybersecurity Framework (NIST CSF) and assess our cybersecurity maturity against the NIST CSF’s core functions; however, this does not imply that we meet any particular technical standards, specifications or requirements, only that we use the NIST CSF as a guide to help us identify, assess and manage cybersecurity risks relevant to our business.

Our cybersecurity risk management processes include a cybersecurity incident response plan, and we have invested in technical and organizational safeguards intended to manage and mitigate material risks from cybersecurity

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threats to our IT Systems, including network security controls, employee training, internal vetting of third-party vendors and service providers with whom we may share data, and regular system reviews and security exercises. Our cybersecurity risk management program is a component of our overall enterprise risk management program, and shares common methodologies, reporting channels and governance processes that apply across the enterprise risk management program to other legal, compliance, strategic, operational, and financial risk areas.

While we work closely with accredited third-party cybersecurity firms, where appropriate, to audit our security architecture, our Information Security Team, consisting of experienced cybersecurity professionals, is responsible for the day-to-day management of our cybersecurity risks, including directing our cybersecurity risk assessment processes, our security processes, and our response to cybersecurity incidents.

For the year ended December 31, 2025, we have not identified risks from known cybersecurity threats, including as a result of any prior cybersecurity incidents, that have or are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition. We face certain ongoing risks from cybersecurity threats that, if realized, are reasonably likely to materially affect us, including our operations, business strategy, results of operations, or financial condition. See “Risk Factors – Cybersecurity incidents, hardware or software failures or other information technology disruptions may negatively impact our operations, reputation and financial condition.”

Cybersecurity Governance

Our Board considers cybersecurity risk as critical to the enterprise and delegates the cybersecurity risk oversight function to the Audit Committee. The Audit Committee oversees management’s design, implementation and enforcement of our cybersecurity risk management program.

Our Board and our Audit Committee receive quarterly reports from management on our cybersecurity risks. In addition, management updates the Audit Committee, as necessary, regarding cybersecurity incidents it considers to be significant or potentially significant. Audit Committee members also receive presentations on cybersecurity topics from our Vice President of Information Technology and Chief Financial Officer, supported by our internal security staff, or external experts as part of the Board’s continuing education on topics that impact public companies and update the full Board as necessary.

Our management team, including our Chief Financial Officer and Vice President of Information Technology, is responsible for assessing and managing our material risks from cybersecurity threats. The team has primary responsibility for leading our overall cybersecurity risk management program and supervises both our internal cybersecurity personnel and our external cybersecurity service providers. Our Vice President of Information Technology has more than 25 years of experience managing and leading IT and cybersecurity teams. Our Vice President of Information Technology participates in the Aviation ISAC organization, an international membership community of airframers, airlines, airports, satellite manufacturers, aviation services, and their supply chains that collaborate to prevent, detect, respond to, and remediate cyber risk through threat intelligence sharing and best practices.

Our management team takes steps to stay informed about and monitor efforts to prevent, detect, mitigate, and remediate cybersecurity risks and incidents through various means, which may include briefings from internal security personnel, threat intelligence and other information obtained from governmental, public or private sources, including external consultants engaged by us, and alerts and reports produced by security tools deployed in the IT environment.

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ITEM 2. PROPERTIES

Flight Equipment

As of December 31, 2025, our fleet used by our SkyWest Airlines segment under our code-share agreements consisted of the following types of owned and leased aircraft:

Number of Number of Scheduled Average

Owned Leased Passenger Flight Cruising Average

Several factors may impact our fleet size throughout 2026 and thereafter, including, but not limited to, contract expirations that are not renewed, labor shortages, reductions in our prorate fleet, lease expirations on aircraft with our major airline partners that are not extended and growth opportunities. Our actual future fleet size and/or mix of aircraft types and future aircraft scheduled utilization will likely vary, and may vary materially, from our current fleet size and/or mix and aircraft utilization. The number of leased aircraft in the table above are aircraft we lease from our major airline partners for a de minimis monthly cost under capacity purchase agreements (also referred to as partner-financed aircraft).

Ground Facilities

We lease many of the buildings and associated land that we occupy. Most of these leases are for facilities at airports with various government agencies that control the use of the airport. We lease maintenance, training and office facilities in Salt Lake City, Utah, and we lease additional maintenance facilities in Boise, Idaho; Fresno, California; Chicago, Illinois; Detroit, Michigan; Nashville, Tennessee; South Bend, Indiana; Lincoln, Nebraska; Omaha, Nebraska; Shreveport, Louisiana; and Palm Springs, California. We also lease ticket counters, passenger hold rooms, operating areas and other terminal space in many of the airports that we serve.

We own our corporate headquarters facilities located in St. George, Utah and a maintenance accessory shop facility in Salt Lake City, Utah. We also own maintenance facilities on land leases with airport authorities in Milwaukee, Wisconsin; Oklahoma City, Oklahoma; Colorado Springs, Colorado; and Tucson, Arizona.

ITEM 3. LEGAL PROCEEDINGS

We are subject to certain legal actions which we consider routine to our business activities. As of December 31, 2025, our management believed, after consultation with legal counsel, that the ultimate outcome of such legal matters was not likely to have a material adverse effect on our financial position, liquidity or results of operations. However, the ultimate resolution of these matters is inherently uncertain.

ITEM 4. MINE SAFETY DISCLOSURES

The disclosure required by this item is not applicable.

PART II

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Market Information

Our common stock is traded on The Nasdaq Global Select Market under the symbol “SKYW.” As of February 10, 2026, there were approximately 3,245 stockholders of record of our common stock. Securities held of record do not include shares held in securities position listings. The transfer agent for our common stock is Zions First National Bank, Salt Lake City, Utah.

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Dividends

We did not declare dividends for the years ended December 31, 2025 and 2024.

Issuer Purchases of Equity Securities

Our Board of Directors has adopted a stock repurchase program which authorizes us to repurchase shares of our common stock in the public market or in private transactions, from time to time, at prevailing prices. Our stock repurchase program adopted in May 2023 authorized the repurchase of up to $250.0 million of our common stock. In May 2025, the Board approved a $250.0 million increase to the existing stock repurchase program. The following table summarizes the repurchases under our stock repurchase program during the three months ended December 31, 2025:

Stock Performance Graph

The following Performance Graph and related information shall not be deemed “soliciting material” or “filed” with the SEC, nor shall such information be incorporated by reference into any future filing under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (the “Exchange Act”), except to the extent we specifically incorporate it by reference into such filing.

The following graph compares the cumulative total shareholder return on our common stock over the five-year period ended December 31, 2025, with the cumulative total return during such period of the Nasdaq Stock Market (U.S. Companies) and the Nasdaq Stock Market Transportation Index. The following graph assumes an initial investment of $100.00 with dividends reinvested. The stock performance shown on the graph below represents historical stock performance and is not necessarily indicative of future stock price performance.

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INDEXED RETURNS

Base

Period Years Ending

ITEM 6. [Reserved]

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis presents factors that had a material effect on our results of operations during the years ended December 31, 2025 and 2024. Also discussed is our financial condition as of December 31, 2025 and 2024. You should read this discussion in conjunction with our consolidated financial statements, including the notes thereto, appearing elsewhere in this Report or incorporated herein by reference. This discussion and analysis contains forward-looking statements. Please refer to the sections of this Report entitled “Cautionary Statement Concerning Forward-Looking Statements” and “Item 1A. Risk Factors” for discussion of some of the uncertainties, risks and assumptions associated with these statements.

This section of this Annual Report on Form 10-K generally discusses 2025 and 2024 items and year-to-year comparisons between 2025 and 2024. Discussions of 2023 items and year-to-year comparisons between 2024 and 2023 that are not included in this Annual Report on Form 10-K can be found in the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II, Item 7 of the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

Overview

We have the largest regional airline operation in the United States through our operating subsidiary SkyWest Airlines. As of December 31, 2025, we offered scheduled passenger and air freight service with approximately 2,260 total daily departures to destinations in the United States, Canada and Mexico. Our fleet of E175, CRJ900, CRJ700 and

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CRJ550 have a multiple-class seat configuration, whereas our CRJ200 have a single-class seat configuration. During 2022, we formed SWC, which offers on-demand charter services using CRJ200 aircraft in a 30-seat configuration. As of December 31, 2025, we had 637 total aircraft in our fleet, including 487 aircraft in scheduled service or under contract pursuant to our code-share agreements, summarized as follows:

Alaska 42 — — — 42

Aircraft in scheduled service or under contract 270 36 123 58 487

SWC — — — 11 11

Leased to third parties — 5 40 — 45

Our business model is based on providing scheduled regional airline service under code-share agreements (commercial agreements between airlines that, among other things, allow one airline to use another airline’s flight designator codes on its flights) with our major airline partners. In exchange for such services, our major airline partners pay us either fixed fees to operate the flight, referred to as “capacity purchase agreement,” or we receive a percentage of applicable passenger ticket revenues on the designated flights we operate, referred to as “prorate agreement.” Our success is principally centered on our ability to meet the needs of our major airline partners by providing a reliable and safe operation at attractive economics. During the year ended December 31, 2025, we made changes to our fleet, including the addition of seven new E175 aircraft and one partner-financed E175 aircraft.

We anticipate our fleet will continue to evolve, as we are scheduled to add a total of eight new E175 aircraft with United in 2026, 16 new aircraft with Delta between 2027 and 2028 (which are expected to replace 12 CRJ900s and four CRJ700s we are currently flying under contract with Delta) and one new E175 aircraft with Alaska in 2026. We also have multiple agreements with United to place 23 used CRJ550 aircraft into service in 2026. Timing of placing these additional aircraft into service, including delivery timing on acquired aircraft, may be subject to change as we are coordinating with our major airline partners in response to labor availability or other factors. Our primary objective in the fleet changes is to improve our profitability by adding new E175 aircraft and used CRJ700, CRJ550, CRJ900 and E175 aircraft, commonly referred to as “dual-class aircraft” due to the first-class seat offerings, to our capacity purchase agreements or prorate agreements, and potentially removing older aircraft from service that typically require higher maintenance costs.

For the year ended December 31, 2025, approximately 44.4% of our aircraft in scheduled service or under contract were operated for United, approximately 28.1% were operated for Delta, approximately 18.9% were operated for American and approximately 8.6% were operated for Alaska.

Historically, multiple contractual relationships with major airlines have enabled us to reduce our reliance on any single major airline code and to enhance and stabilize operating results through a mix of our capacity purchase agreements and our prorate agreements. For the year ended December 31, 2025, our capacity purchase revenue represented approximately 84.3% of our total flying agreements revenue and our prorate and SWC revenue, combined, represented approximately 15.7% of our total flying agreements revenue. On capacity purchase routes, the major airline partner controls scheduling, ticketing, pricing and seat inventories and we are compensated by the major airline partner at contracted rates based on completed block hours (measured from takeoff to landing, including taxi time), flight departures, the number of aircraft under contract and other operating measures. We control scheduling, pricing and seat inventories on certain prorate routes, and we share passenger fares with our major airline partners according to prorate formulas. We are also responsible for the operating costs of the prorate flights, including fuel and airport costs.

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Financial Highlights

We had total operating revenues of $4.1 billion for the year ended December 31, 2025, a 15.0% increase compared to total operating revenues of $3.5 billion for the year ended December 31, 2024. We had net income of $428.3 million, or $10.35 per diluted share, for the year ended December 31, 2025, compared to net income of $323.0 million, or $7.77 per diluted share, for the year ended December 31, 2024. The significant items affecting our revenue and operating expenses during the year ended December 31, 2025, are outlined below:

Revenue

The number of aircraft we have in scheduled service or under contract pursuant to our code-share agreements and the number of block hours we incur on our flights are primary drivers of our flying agreements revenue under our capacity purchase agreements. The number of flights we operate and the corresponding number of passengers we carry are the primary drivers of our revenue under our prorate agreements. The number of aircraft we have in scheduled service or under contract pursuant to our code-share agreements decreased from 492 as of December 31, 2024, to 487 as of December 31, 2025, or by 1.0%; and the number of block hours increased from 1.3 million in 2024 to 1.5 million in 2025, or by 14.7%, primarily due to an increase in the scheduled daily utilization of our aircraft driven by an increase in the number of available captains.

Our capacity purchase revenue increased $319.3 million, or 10.8%, from 2024 to 2025, primarily as a result of an increase in completed block hours for the comparable periods. As a result of a higher number of passengers carried on our prorate routes and an increase in the number of prorate and charter flights operated year-over-year, our prorate and SWC revenue increased $153.0 million, or 33.5%, in 2025, as compared to 2024.

Operating Expenses

Our total operating expenses increased $407.1 million, or 13.4%, for the year ended December 31, 2025, compared to the year ended December 31, 2024. The increase in operating expenses was primarily due to an increase in our direct operating expenses associated with the increase in the number of flights we operated for the year ended December 31, 2025, compared to the year ended December 31, 2024. Departures increased from 766,742 for the year ended December 31, 2024 to 863,513 for the year ended December 31, 2025, or by 12.6%, and our total block hours increased 14.7% in 2025, as compared to 2024. Additional details regarding the increase in our operating expenses are described in the section of this Report entitled “Results of Operations.”

Fleet Activity

The following table summarizes our fleet in service or under contract as of December 31, 2024 and December 31, 2025:

During 2025, we took delivery of seven new E175 aircraft and placed the aircraft into service under capacity purchase agreements, and we placed one partner-financed E175 aircraft into service under a capacity purchase agreement. We placed 18 SkyWest owned CRJ550 aircraft into service under a capacity purchase agreement or prorate agreement, while removing 14 CRJ700 aircraft from flying agreements. We placed four SkyWest owned CRJ900 aircraft into service under a prorate agreement while removing four partner-financed CRJ900 aircraft from flying agreements. We also removed 17 CRJ200 aircraft from service during 2025. We are evaluating alternative uses for the CRJ200 aircraft removed from service.

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Results of Operations

2025 Compared to 2024

Operational Statistics

The following table sets forth our major operational statistics and the associated percentage changes for the periods identified below. The increase in block hours, departures and passengers carried during the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in the number of block hours incurred per aircraft as the number of available captains did not significantly limit our flight schedules during 2025, compared to 2024, which allowed for a higher scheduled utilization of our aircraft.

For the year ended December 31,

Block hours by aircraft type: 2025 2024 % Change

Passenger load factor 81.5 % 82.8 % (1.3) pts

Average passenger trip length (miles) 457 464 (1.5) %

Operating Revenues

The following table summarizes our operating revenue for the periods indicated (dollar amounts in thousands):

For the year ended December 31,

2025 2024 $ Change % Change

Flying agreements revenue primarily consists of revenue earned on flights we operate under our capacity purchase agreements and prorate agreements with our major airline partners and on-demand charter flights. Lease, airport services and other revenues consist of revenue earned from leasing aircraft and spare engines to third parties separate from our capacity purchase agreements, providing maintenance services to other airlines and providing airport counter, gate and ramp services.

We disaggregate our flying agreements revenue into the following categories (dollar amounts in thousands):

For the year ended December 31,

The increase in “Capacity purchase agreements flight operations revenue” of $175.1 million, or 7.3%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to a 14.7% year-over-year increase in block hour productionfrom aircraft under our capacity purchase agreements, offset by a capacity purchase agreement contract extension in 2025 that decreased the allocation of certain fixed monthly revenue from flight

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operations revenue and increased the allocation of such payments to aircraft lease revenue based on relative standalone selling prices of the lease and non-lease components for the year ended December 31, 2025.

Under our capacity purchase agreements, we are paid a fixed amount per month per aircraft over the contract term. We recognize the total projected fixed monthly payments per aircraft as revenue proportionately to the number of block hours we complete for each reporting period, relative to the estimated number of block hours we anticipate completing over the remaining contract term. Under our capacity purchase agreements, the performance obligation of each completed flight is measured in block hours incurred for each completed flight. Based on the number of completed block hours during the year ended December 31, 2025, we recognized a total of $38.3 million of previously deferred revenue and unbilled revenue related to the non-lease fixed monthly payments we received associated with our flight operations revenues. For the year ended December 31, 2024, we recognized a total of $43.4 million of previously deferred revenue and unbilled revenue related to non-lease fixed monthly payments received associated with our flight operations revenues. The timing of our revenue recognition related to the fixed payments associated with our flight operations will be adjusted over the remaining contract term for each capacity purchase agreement based on the number of block hours we complete each reporting period relative to the number of block hours we anticipate completing over the remaining contract term of each capacity purchase agreement.

The increase in “Capacity purchase agreements aircraft lease revenue” of $144.2 million, or 26.7%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily driven by a change in the mix of aircraft under our capacity purchase agreements from the year ended December 31, 2024 and a capacity purchase agreement contract extension in 2025 that decreased the allocation of certain fixed monthly revenue from flight operations revenue and increased the allocation of such payments to aircraft lease revenue based on relative standalone selling prices of the lease and non-lease components for the year ended December 31, 2025. Under our capacity purchase agreements, a portion of the consideration we are paid is designed as reimbursement for certain aircraft ownership costs and is considered lease revenue, including fixed monthly payments and variable payments. We recognize the fixed monthly lease payments as lease revenue using the straight-line basis over the capacity purchase agreement term and variable lease payments are recognized in the period when the block hours are completed. Additionally, we recognized a total of $19.5 million of previously deferred lease revenue and unbilled revenue during the year ended December 31, 2025, using the straight-line basis for fixed monthly lease payments, compared to recognizing a total of $1.5 million of previously deferred revenue and unbilled revenue during the year ended December 31, 2024.

The deferred revenue balance applicable to each contract will be recorded as revenue over the term of each respective contract. For clarity, under our “Capacity purchase agreements flight operations revenue” and “Capacity purchase agreements aircraft lease revenue” combined, we recognized a total of $57.8 million of previously deferred revenue and unbilled revenue during the year ended December 31, 2025, compared to recognizing a total of $44.9 million of previously deferred revenue and unbilled revenue during the year ended December 31, 2024. Our total deferred revenue balance, associated with our “Capacity purchase agreements flight operations revenue” and our “Capacity purchase agreements aircraft lease revenue,” net of unbilled revenue, was $264.6 million as of December 31, 2025, compared to total deferred revenue, net of unbilled revenue of $322.4 million as of December 31, 2024.

The increase in prorate agreements and SWC revenue of $153.0 million, or 33.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in prorate departures, passengers and passenger revenue we received on routes we operated under our prorate agreements driven by an improvement in the number of available captains during the year ended December 31, 2025, compared to the year ended December 31, 2024.

The increase in lease, airport services and other revenues of $57.9 million, or 50.3%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in maintenance services provided to third parties, an increase in the number of leased assets, and increase in lease rates during 2025 compared to 2024.

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Operating Expenses

Individual expense components attributable to our operations are set forth in the following table (dollar amounts in thousands):

For the year ended December 31,

Salaries, wages and benefits. The $95.4 million, or 6.5%, increase in salaries, wages and benefits for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in direct labor costs that resulted from the higher number of flights we operated, partially offset by operating efficiencies from higher utilization of our aircraft during the year ended December 31, 2025, compared to the year ended December 31, 2024.

Aircraft maintenance, materials and repairs.The $231.1 million, or 32.4%, increase in aircraft maintenance expense for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to incremental maintenance costs incurred on our CRJ fleet, an increase in our flight volume, which increased our maintenance activity and related expenses, and an increase in maintenance service activities provided to third parties for the year ended December 31, 2025, compared to the year ended December 31, 2024.

Depreciation and amortization. The $19.4 million, or 5.0%, decrease in depreciation and amortization expense for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to certain fixed assets that became fully depreciated during 2024 and as a result of extending the estimated useful lives on our CRJ700/CRJ550 fleet by an average of three years and revising the residual values of the assets accordingly during the fourth quarter of 2024, which had a full year effect in 2025, partially offset by an increase in depreciation expense related to the acquisition of seven new E175 aircraft and spare engines since December 31, 2024.

Airport-related expenses.Airport-related expenses include airport-related customer service costs such as outsourced airport gate and ramp agent services, airport security fees, passenger interruption costs, deicing, landing fees and station rents. The $35.8 million, or 41.7%, increase in airport-related expenses for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in subcontracted airport services, station rents, weather related aircraft deicing costs and landing fees as a result of an increase in the number of flights we operated under our prorate agreements. For clarity, our employee airport customer service labor costs are reflected in salaries, wages and benefits and customer service labor costs we outsource to third parties are included in airport-related expenses.

Aircraft fuel.The $33.0 million, or 37.7%, increase in fuel cost for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in the number of flights we operated under our prorate agreements and under SWC and the corresponding increase in gallons of fuel we purchased, offset by a decrease in our average fuel cost per gallon from $3.19 in 2024 to $3.00 in 2025.We purchase and incur expense for all fuel on flights operated under our prorate agreements and SWC. All fuel costs incurred under our capacity purchase agreements are either purchased directly by our major airline partner, or if purchased by us, we record the direct reimbursement as a reduction to our fuel expense. The following table summarizes the gallons of fuel we purchased under our prorate agreements and SWC, for the periods indicated:

For the year ended December 31,

(in thousands) 2025 2024 % Change

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Other operating expenses.Other operating expenses primarily consist of aircraft rentals, property taxes, hull and liability insurance, simulator costs, crew per diem, crew hotel costs and credit loss reserves. The $31.2 million, or 10.4%, increase in other operating expenses for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily related to an increase in operating expenses associated with our higher flight volume in 2025 compared to 2024, such as crew per diem and crew hotel costs, and an increase in our credit loss reserve in 2025 as a result of our assessment of higher credit risk of certain outstanding receivables.

Summary of interest expense, interest income, other income (expense) and provision for income taxes:

Interest expense.The $9.9 million, or 8.7%, decrease in interest expense for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily related to a decrease in outstanding debt from $2.7 billion at December 31, 2024 to $2.4 billion at December 31, 2025. Our average effective interest rate for 2025 and 2024 was 4.3% and 4.2%, respectively.

Interest income. Interest income decreased $4.6 million, from $47.9 million for the year ended December 31, 2024 to $43.3 million for the year ended December 31, 2025. The decrease in interest income was primarily related to a decrease in interest rates earned on our marketable securities from December 31, 2024 to December 31, 2025.

Other income, net. Other income, net of expenses increased $5.0 million for the year ended December 31, 2025, compared to the year ended December 31, 2024. Other income, net primarily consists of the unrealized and realized gains and losses on our investments in other companies, income or loss related to our equity method investments and gains or losses on the sale of assets. The increase in other income, net of expenses was primarily a result of an increase in the fair value of our investments in other companies for the year ended December 31, 2025, compared to the year ended December 31, 2024.

Provision for income taxes. For the years ended December 31, 2025, and December 31, 2024, our effective income tax rates were 24.3% and 25.3%, respectively, which included the statutory federal income tax rate of 21.0% and other reconciling income tax items, including state income taxes and the impact of non-deductible expenses. For the year ended December 31, 2025, the lower effective tax rate was primarily related to a higher deduction benefit related to employee equity awards that vested in 2025 compared to 2024. Our income tax provision rate may fluctuate each reporting period based on various factors including, but not limited to, the amount of our non-deductible operating expenses, relative to our income before income taxes.

Net income. Primarily due to the factors described above, we generated net income of $428.3 million, or $10.35 per diluted share, for the year ended December 31, 2025, compared to net income of $323.0 million, or $7.77 per diluted share, for the year ended December 31, 2024.

Our Business Segments 2025 compared to 2024:

Our reportable segments consist of (1) the operations of SkyWest Airlines and SWC (collectively, “SkyWest Airlines and SWC”) and (2) SkyWest Leasing activities.

Our chief operating decision maker analyzes the profitability of operating aircraft separately from the profitability of our capital deployed for new aircraft and the related financings of such aircraft, including our E175 fleet. The SkyWest Airlines and SWC segment includes revenue earned under the applicable capacity purchase agreements attributed to operating such aircraft and the respective operating costs, and revenue and operating expenses attributed to prorate agreements, airport services agreements and charter flight services. The SkyWest Leasing segment includes applicable revenue earned under the applicable capacity purchase agreements attributed to the ownership of new aircraft acquired through the issuance of debt and the respective depreciation and interest expense of such aircraft. The SkyWest Leasing segment also includes the activity of acquiring and leasing used regional jet aircraft and spare engines to third parties and other activities. The SkyWest Leasing segment’s total assets and capital expenditures include new aircraft acquired through the issuance of debt and our aircraft and engines leased to third parties.

Corporate overhead expenses, primarily consisting of administrative labor costs, were allocated to the operating expenses of SkyWest Airlines and SWC and SkyWest Leasing. Overhead expenses allocated to SkyWest Leasing reflect our estimated labor expense incurred to support SkyWest Leasing activities.

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The following table sets forth our SkyWest Airlines and SWC segment data for the years ended December 31, 2025 and 2024 (in thousands):

For the year ended December 31,

(dollar amounts in thousands)

2025 2024 $ Change % Change

(2) Segment profit is equal to income before income taxes.

SkyWest Airlines and SWC Segment Profit. SkyWest Airlines and SWC segment profit was $263.0 million for the year ended December 31, 2025, compared to $138.9 million for the year ended December 31, 2024.

SkyWest Airlines and SWC block hour production increased 14.7%, from 1,292,040 for the year ended December 31, 2024 to 1,481,723 for the year ended December 31, 2025, primarily due to an increase in the number of available captains, which allowed for a higher scheduled utilization of our aircraft. Significant items contributing to the SkyWest Airlines and SWC segment profit for the year ended December 31, 2025 are set forth below.

SkyWest Airlines and SWC operating revenues increased $509.7 million, or 17.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to an increase in block hour production during the year ended December 31, 2025, compared to the year ended December 31, 2024.

SkyWest Airlines and SWC’s salaries, wages and benefits expense increased $95.4 million, or 6.5%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to an increase in direct labor costs that resulted from the higher number of flights we operated, partially offset by operating efficiencies from higher utilization of our aircraft during the year ended December 31, 2025, compared to the year ended December 31, 2024.

SkyWest Airlines and SWC’s aircraft maintenance, materials and repairs expense increased $192.6 million, or 28.1%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to incremental maintenance costs incurred on our CRJ fleet and higher flight volume, which increased the maintenance activity and related expenses, for the year ended December 31, 2025, compared to the year ended December 31, 2024.

SkyWest Airlines and SWC’s depreciation and amortization expense increased $12.5 million, or 8.6%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to acquiring additional assets, including spare engines and CRJ550 aircraft since December 31, 2024.

SkyWest Airlines and SWC’s interest expense decreased $1.2 million, or 9.4%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to a decrease in outstanding debt from December 31, 2024 to December 31, 2025.

SkyWest Airlines and SWC’s other segment items increased $86.4 million, or 18.7%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily related to an increase in fuel costs, airport-related expenses, such as subcontracted airport services, station rents, weather-related aircraft deicing costs and

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landing fees and other operating costs, such as crew per diem and crew hotel costs, as a result of the higher number of flights we operated during the year ended December 31, 2025, compared to the year ended December 31, 2024.

The following table sets forth our SkyWest Leasing segment data for the years ended December 31, 2025 and 2024 (in thousands):

For the year ended December 31,

(dollar amounts in thousands)

2025 2024 $ Change % Change

Salaries, wages and benefits 2,661 2,661 — — %

(2) Segment profit is equal to income before income taxes.

SkyWest Leasing Segment Profit. SkyWest Leasing profit increased $9.4 million, or 3.2%, for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to an increase in revenue from maintenance services provided to third parties, a decrease in interest expense due to a decrease in outstanding debt from December 31, 2024 to December 31, 2025 and a decrease in depreciation and amortization expense primarily due to certain fixed assets that became fully depreciated during 2024 and as a result of extending the estimated useful lives on our CRJ700/CRJ550 fleet during the fourth quarter of 2024 with a full year effect in 2025. These increases in segment profit were partially offset by an increase in aircraft maintenance, materials and repairs due to incremental maintenance services provided to third parties and an increase in our credit loss reserve as a result of our assessment of the credit risk of the outstanding receivables.

Liquidity and Capital Resources

As of December 31, 2025, we had $706.9 million in cash and cash equivalents and marketable securities. As of December 31, 2025, we had $75.6 million available for borrowings under our line of credit. Given our available liquidity as of December 31, 2025, we believe the working capital currently available to us will be sufficient to meet our present financial requirements, including planned capital expenditures, scheduled lease payments and debt service obligations for at least the next 12 months.

Our total cash, cash equivalents and marketable securities decreased from $801.6 million as of December 31, 2024, to $706.9 million as of December 31, 2025, or by $94.7 million. Our total long-term debt, including current maturities decreased from $2.7 billion as of December 31, 2024, to $2.4 billion as of December 31, 2025, or by $0.3 billion, primarily due to scheduled debt payments for the 2025 year, partially offset by debt issued to finance seven new E175 aircraft. Additionally, we repurchased 0.8 million shares of our common stock for $84.5 million under a share repurchase program authorized by our Board of Directors during the year ended December 31, 2025. At December 31, 2025, our total capital mix (measured as a ratio of total stockholder equity and total long-term debt, including current maturities) was 53.4% equity and 46.6% total long-term debt, compared to 47.4% equity and 52.6% total long-term debt at December 31, 2024.

As of December 31, 2025 and 2024, we had $47.2 million and $47.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions. We had no restricted cash as of December 31, 2025 and 2024.

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Sources and Uses of Cash

Cash Position and Liquidity. The following table provides a summary of the net cash provided by (used in) our operating, investing and financing activities for the years ended December 31, 2025 and 2024, and our total cash and marketable securities positions as of December 31, 2025 and December 31, 2024 (in thousands):

For the year ended December 31,

2025 2024 $ Change % Change

December 31, December 31,

Cash Flows provided by Operating Activities

Our cash flows provided by operating activities was $940.4 million for the year ended December 31, 2025, compared to $692.5 million for the year ended December 31, 2024. Our operating cash flows are typically impacted by various factors including our net income, adjusted for non-cash expenses and gains such as depreciation expense, stock based compensation expense and gains or losses on the disposal of assets; and timing of cash payments and cash receipts attributed to our various current asset and liability accounts, such as accounts receivable, inventory, accounts payable, income taxes, accrued liabilities, deferred revenue and unbilled revenue.

The increase in our cash flow from operations for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase in income before income taxes for the year ended December 31, 2025, compared to the year ended December 31, 2024, and an increase in accounts payable and other liabilities due to the timing of cash payments for the comparable periods.

Cash Flows used in Investing Activities

Our cash flows used in investing activities was $651.8 million for the year ended December 31, 2025, compared to cash flows used in investing activities of $228.6 million for the year ended December 31, 2024. Our investing cash flows are typically impacted by various factors including our capital expenditures, such as the acquisition of aircraft and spare engines; deposit payments and refunds of previously made deposits on new aircraft; purchase and sales of marketable securities; proceeds from the sale of assets; and timing of cash payments and cash receipts attributed to our investments in other entities.

Excluding the purchase and sale of marketable securities, which results in the transfer of dollars between our investments in marketable securities and our cash accounts, our cash used in investing activities increased from $341.2 million for the year ended December 31, 2024, to $642.0 million for the year ended December 31, 2025. Excluding the transfer of dollars between our investments in marketable securities and our cash accounts, the remaining increase in cash used in investing activities was primarily due to an increase of $267.3 million used in the acquisition of property and equipment and an increase of $57.8 million used for aircraft deposits for the year ended December 31, 2025, compared to the year ended December 31, 2024, primarily due to the acquisition of seven new E175 aircraft and spare engines in 2025.

Cash Flows used in Financing Activities

Our cash flows used in financing activities was $393.2 million for the year ended December 31, 2025, compared to cash used in financing activities of $384.8 million for the year ended December 31, 2024. Our financing cash flows are typically impacted by various factors including proceeds from issuance of debt, principal payments on debt obligations, repurchases of our common stock and payment of cash dividends.

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The $8.5 million increase in cash used in financing activities for the year ended December 31, 2025, compared to the year ended December 31, 2024, was primarily due to an increase of $41.6 million in cash used to purchase treasury stock and an increase of $20.3 million in cash used for employee income taxes paid on vested equity awards in lieu of shares, offset by an increase of $53.6 million in proceeds from the issuance of long-term debt for the purchase of seven new E175 aircraft, net of principal payments on long-term debt during the year ended December 31, 2025, compared to the year ended December 31, 2024.

Significant Commitments and Obligations

General

The following table summarizes our commitments and obligations for future minimum rental payments required under operating leases that had initial or remaining non-cancelable lease terms as of December 31, 2025, firm aircraft and spare engine commitments, interest commitments and principal maturities on long-term debt as noted for each of the next five years and thereafter (in thousands):

In addition to the table above, in 2024, we entered into a master equipment purchase agreement with another airline to acquire certain airframes and engines and lease the assets back to the airline under a five-year term. We accounted for the transaction as a failed sale-leaseback in accordance with Accounting Standard Codification Topic 842 as the criteria for a sale were not met. At December 31, 2025, we estimated the remaining financing obligation under the agreement will be between $20.0 million and $25.0 million and anticipated closing on the remaining financings during 2026.

Purchase Commitments and Options

As of December 31, 2025, we had a firm purchase commitment for 69 new E175 aircraft from Embraer with delivery dates anticipated into 2032. We also had firm purchase commitments to purchase two used E170 aircraft with anticipated delivery dates in 2026.

At the time of each aircraft acquisition, we evaluate the financing alternatives available to us and select one or more of these methods to fund the acquisition. In recent years, we have issued long-term debt to finance our new aircraft. At present, we intend to fund our aircraft purchase commitments through a combination of cash on hand and debt financing. Based on current market conditions and discussions with prospective leasing organizations and financial institutions, we currently believe that we will be able to obtain financing for our committed acquisitions, as well as additional aircraft. We intend to finance the firm purchase commitment for 69 E175 aircraft with approximately 75-85% debt and the remaining balance with cash. We intend to use cash to purchase the two used E170 aircraft.

Aircraft Lease and Facility Obligations

We also have long-term lease obligations, primarily relating to our facilities, aircraft and engines. Excluding aircraft financed by our major airline partners that we operate for them under contract, we had eight aircraft under lease with remaining terms ranging from three years to five years as of December 31, 2025. These eight leased aircraft are subleased to a third party. Future minimum lease payments due under all long-term operating leases were approximately $119.0 million at December 31, 2025. Assuming a 6.2% discount rate, which is the average incremental borrowing rate

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we anticipate we would have incurred on debt obtained over a similar term to acquire these assets, the present value of these lease obligations would have been equal to approximately $81.9 million at December 31, 2025.

Long-term Debt Obligations

As of December 31, 2025, we had $2.4 billion of long-term debt, which consisted of $2.2 billion of debt used to finance aircraft and spare engines and $200.6 million of unsecured debt payable to Treasury. The average effective interest rate on our debt obligations was approximately 4.3% at December 31, 2025.

Under our capacity purchase agreements, our major airline partners compensate us for our costs of the aircraft on a monthly basis. The consideration for aircraft ownership costs we receive varies by agreement but is intended to compensate us for our ownership of the aircraft while the aircraft is under contract.

Guarantees

We have guaranteed the obligations of SkyWest Airlines under the United Express Agreement and the Delta Connection Agreement for the E175 aircraft. In addition, we have guaranteed certain other obligations under our aircraft financing and leasing agreements.

We have guaranteed $12.6 million in promissory notes of a third party in the event the third party defaults on their payments. The third party’s loans are secured by aircraft and engines.

Critical Accounting Policies and Estimates

Our significant accounting policies are summarized in Note 1 to our Consolidated Financial Statements included in Item 8 of this Report. Critical accounting policies are those policies that are most important to the preparation of our consolidated financial statements and require management’s subjective and complex judgments due to the need to make estimates about the effect of matters that are inherently uncertain. Our critical accounting policies relate to revenue recognition, long-lived assets and income tax as discussed below. The application of these accounting policies involves the exercise of judgment and the use of assumptions as to future uncertainties and, as a result, actual results will likely differ, and could differ materially, from such estimates.

Revenue Recognition

Flying agreements and airport customer service and other revenues are recognized when service is provided. Under our capacity purchase and prorate flying agreements with our major airline partners, our performance obligation is determined on a per completed flight basis. Under our capacity purchase agreements, the performance obligation of each completed flight is measured using block hours incurred for each completed flight, which factors the duration of each flight. Under our airport customer service agreements, our performance obligation is measured on a per departure basis for each flight we provide customer service.

A portion of our compensation under our capacity purchase agreements is designed to reimburse us for the use of the aircraft we provide under such agreements. This compensation is deemed to be lease revenue, because the agreements identify the “right of use” or a specific type and number of aircraft over the agreement term. We allocate the total consideration received under our capacity purchase agreements between the lease and non-lease components based on stand-alone selling prices. A portion of the consideration received for the use of the aircraft is a fixed monthly payment per aircraft. We recognize the fixed monthly lease payments as lease revenue using the straight-line basis over the capacity purchase agreement term and variable lease payments in the period when the block hours are completed. We recognized $13.9 million of previously deferred lease revenue and $5.6 million unbilled revenue during the year ended December 31, 2025, under the straight-line basis.

Additionally, a portion of our compensation under our capacity purchase agreements relates to operating the aircraft, identified as the non-lease component of the capacity purchase agreement. We recognize revenue attributed to the non-lease component received as fixed monthly payments per aircraft proportionate to the number of block hours completed during each reporting period, relative to the estimated number of block hours we anticipate completing over the remaining contract term. In 2025, we recognized $30.1 million of previously deferred fixed monthly payments as revenue and $8.2 million of unbilled revenue. The amount of deferred revenue and unbilled revenue from fixed monthly payments we recognize will increase or decrease in future reporting periods depending on the number of block hours we

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complete during such reporting period and our then-current forecast of block hours we anticipate completing over the remaining contract term based on information available to us as that time.

Our revenues could be impacted by several factors, such as our flight schedules, passenger fares we receive under our prorate agreements, terminations, extensions or other amendments to our code-share agreements (which may also cause a reassessment of stand-alone selling prices of the lease and non-lease consideration), our estimates used to determine the amount of revenue we defer under our capacity purchase agreements, and our ability to earn incentive payments contemplated under applicable agreements. In the event contracted rates are not finalized at a quarterly or annual financial statement date, we record that period’s revenues based on the lower of the prior period’s approved rates or our estimate of rates that will be implemented upon completion of negotiations. Also, in the event we have a reimbursement dispute with a major airline partner at a quarterly or annual financial statement date, we evaluate the dispute under established revenue recognition criteria and, provided the revenue recognition criteria have been met, we recognize revenue for that period based on our estimate of the resolution of the dispute. Our rates were finalized under our code-share agreements as of December 31, 2025.

Long-Lived Assets

As of December 31, 2025, we had approximately $5.8 billion of property and equipment and related assets net of accumulated depreciation. In accounting for these long-lived assets, we make estimates about the expected useful lives of the assets, the expected residual values of certain of these assets, and the potential for impairment based on the fair value of the assets and the cash flows they generate. Factors indicating potential impairment include, but are not limited to, significant decreases in the market value of the long-lived assets, a significant change in the condition of the long-lived assets and operating cash flow losses associated with the use of the long-lived assets. When considering whether or not impairment of long-lived assets exists, we group similar assets together at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and compare the undiscounted cash flows for each asset group to the net carrying amount of the assets supporting the asset group. Asset groupings are done at the fleet type or contract level.

Factors that may impact our estimates used for depreciation include anticipated useful lives of each aircraft type and estimated residual values of each aircraft. As we operate our aircraft under code-share agreements with our major airline partners, changes in anticipated demand by our major airline partners for regional aircraft may impact our estimated useful lives and residual values for our aircraft, spare engines and other long-lived assets.

Income Tax

Deferred income taxes are determined based on the temporary differences between the financial reporting and tax bases of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. Estimating our tax liabilities involves judgments related to uncertainties in the application of complex tax regulations. We make certain estimates and judgments to determine tax expense for financial statement purposes as we evaluate the effect of tax credits, tax benefits and deductions, some of which result from differences in the timing of recognition of revenue or expense for tax and financial statement purposes. Changes to these estimates may result in significant changes to our tax provision in future periods. Each fiscal quarter we re-evaluate our tax provision and reconsider our estimates and assumptions related to specific tax assets and liabilities, making adjustments as circumstances change.

Recent Accounting Pronouncements

See Note 1 to the Consolidated Financial Statements included in Item 8 of this Report for a description of recent accounting pronouncements.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Aircraft Fuel

In the past, we have not experienced sustained material difficulties with fuel availability, and we currently expect to be able to obtain fuel at prevailing prices in quantities sufficient to meet our future needs. Pursuant to our capacity purchase agreements, United, Delta, American and Alaska have agreed to bear the economic risk of fuel price

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fluctuations on our contracted flights. We bear the economic risk of fuel price fluctuations on our prorate and SWC operations. For each of the years ended December 31, 2025, 2024 and 2023, approximately 16%, 13% and 13% of our total flying agreements revenue was derived from prorate agreements and SWC. For the years ended December 31, 2025, 2024 and 2023, the average price per gallon of aircraft fuel was $3.00, $3.19 and $3.70, respectively. For illustrative purposes only, we have estimated the impact of the market risk of fuel price fluctuations on our prorate and SWC operations using a hypothetical increase of 25% in the price per gallon we purchase. Based on this hypothetical assumption, we would have incurred an additional $30.1 million, $21.9 million and $21.5 million in fuel expense for the years ended December 31, 2025, 2024 and 2023, respectively.

Interest Rates

As of December 31, 2025, our long-term debt secured by aircraft and spare engines had fixed interest rates. We currently intend to finance the acquisition of aircraft through long-term debt. Changes in interest rates may impact our actual cost to acquire future aircraft. To the extent we place new aircraft in service under our capacity purchase agreements with United, Delta, American, Alaska or other carriers, our capacity purchase agreements currently provide that reimbursement rates will be adjusted to reflect the interest rates effective at the closing of the respective aircraft financing. As such, a hypothetical 50 basis point change in market interest rates would not have a material effect on our financial results. At December 31, 2025, of the $200.6 million in unsecured debt payable to Treasury, $95.4 million had a fixed interest rate of 1.0% and the remaining $105.2 million had a variable interest rate of the applicable Secured Overnight Financing Rate ("SOFR") plus 2.0%. The interest rate under the $95.4 million unsecured loans is scheduled to increase to the applicable SOFR rate plus 2.0% upon the fifth anniversary of each disbursement. We received disbursements under these unsecured loans from January 2021 through April 2021. We use the effective interest rate method to record interest expense assuming the unsecured loans are outstanding for the full 10-year term.

Labor and Inflation Risk

The global economy has experienced, and continues to experience high rates of inflation. We cannot predict how long these inflationary pressures will continue, or how they may change over time, but we expect to see continued impacts on the global economy and our Company.

As a result, our costs have become, and we expect they will continue to be, subject to inflationary pressures, and we may not be able to fully offset such higher costs through price increases under our capacity purchase agreements. Salaries, wages and benefits expense represented 45.3% of our total operating expense for year ended December 31, 2025. For illustrative purposes, a hypothetical increase of 25% to our salaries, wages and benefits during the year ended December 31, 2025, would have increased our operating expenses by approximately $389.8 million.

Our inability or failure to offset a material increase in costs due to inflation and/or labor costs could harm our business, financial condition and operating results. Additionally, in the event we are unable to hire and retain qualified pilots or other operational personnel, including flight attendants and maintenance technicians, we may be unable to operate requested flight schedules under our capacity purchase agreements, which could result in a reduction in revenue and operating inefficiencies, such as incremental new-hire training costs, and could harm our business, financial condition and operating results.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

The information set forth below should be read together with the “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” appearing elsewhere herein.

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Report of Independent Registered Public Accounting Firm

To the Stockholders and the Board of Directors of SkyWest, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of SkyWest, Inc. and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of comprehensive income, stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2025, and the related notes and financial statement schedule listed in the Index at Item 15(a)2 (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 31, 2025, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework), and our report dated February 17, 2026 expressed an unqualified opinion thereon.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Calculation of deferred revenue

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/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2003.

Salt Lake City, Utah

February 17, 2026

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(Dollars in thousands)

ASSETS

December 31, December 31,

CURRENT ASSETS:

PROPERTY AND EQUIPMENT:

Less-accumulated depreciation and amortization (3,887,943) (3,545,456)

OTHER ASSETS:

Operating lease right-of-use assets 81,943 87,731

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS (Continued)

(Dollars in thousands)

LIABILITIES AND STOCKHOLDERS’ EQUITY

December 31, December 31,

CURRENT LIABILITIES:

Current maturities of operating lease liabilities 19,629 20,467

NONCURRENT OPERATING LEASE LIABILITIES 62,314 67,264

COMMITMENTS AND CONTINGENCIES (Note 5)

STOCKHOLDERS’ EQUITY:

Preferred stock, 5,000,000 shares authorized; none issued — —

Accumulated other comprehensive income 278 168

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In thousands, except per share amounts)

Year Ended December 31,

OPERATING REVENUES:

OPERATING EXPENSES:

OTHER INCOME (EXPENSE):

BASIC EARNINGS PER SHARE $ 10.62 $ 8.02 $ 0.78

DILUTED EARNINGS PER SHARE $ 10.35 $ 7.77 $ 0.77

Weighted average common shares:

COMPREHENSIVE INCOME:

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands)

Accumulated

Other

Common Stock Retained Treasury Stock Comprehensive

Shares Amount Earnings Shares Amount Income (Loss) Total

Stock based compensation expense — 17,125 — — — — 17,125

Stock issued under the long-term incentive plan 270 — — — — — —

Stock based compensation expense — 19,864 — — — — 19,864

Treasury stock purchases — — — (578) (43,324) — (43,324)

Stock issued under the long-term incentive plan 605 — — — — — —

Stock based compensation expense — 18,729 — — — — 18,729

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Year Ended December 31,

CASH FLOWS FROM OPERATING ACTIVITIES:

Increase (decrease) in credit loss reserves 7,520 (3,628) (185)

Gain on disposal of fixed assets (8,077) (8,245) (14,295)

Loss on investments in other companies 1,051 6,815 479

Impairment (gain) on assets held for sale — (4,157) 2,318

Changes in operating assets and liabilities:

Decrease (increase) in income tax receivable (2,249) (7,504) 997

Decrease (increase) in other current assets (21) (13,813) 1,593

Decrease (increase) in unbilled revenue (13,772) (7,871) 12,601

CASH FLOWS FROM INVESTING ACTIVITIES:

Acquisition of property and equipment:

Proceeds from the sale of property and equipment 15,588 5,154 15,879

Aircraft deposits applied towards acquired aircraft — — 11,649

Decrease (increase) in other assets, net (4,196) (18,020) 4,158

CASH FLOWS FROM FINANCING ACTIVITIES:

Payment of debt issuance cost (634) (670) (175)

Net proceeds from issuance of common stock 2,651 2,864 2,811

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(In thousands)

Year Ended December 31,

SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION: 2025 2024 2023

Non-cash investing and financing activities:

Derecognition of right of use assets $ — $ — $ (39,247)

Derecognition of operating lease liabilities $ — $ — $ 39,247

Cash paid during the period for:

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 31, 2025

(1) Nature of Operations and Summary of Significant Accounting Policies

SkyWest, Inc. (the “Company”), through its subsidiary, SkyWest Airlines, Inc. (“SkyWest Airlines”) operates the largest regional airline in the United States. As of December 31, 2025, SkyWest Airlines offered scheduled passenger service under code-share agreements with United Airlines, Inc. (“United”), Delta Air Lines, Inc. (“Delta”), American Airlines, Inc. (“American”) and Alaska Airlines, Inc. (“Alaska”) with approximately 2,260 total daily departures to destinations in the United States, Canada and Mexico. Additionally, the Company provides airport customer service and ground handling services for other airlines throughout its system. In 2022, the Company formed SkyWest Charter, LLC (“SWC”), which began operations in 2023. SWC offers an on-demand charter flight service. As of December 31, 2025, the Company had 637 total aircraft in its fleet, including 487 aircraft in scheduled service or under contract pursuant to its code-share agreements, summarized as follows:

Alaska 42 — — — 42

Aircraft in scheduled service or under contract 270 36 123 58 487

SWC — — — 11 11

Leased to third parties — 5 40 — 45

For the year ended December 31, 2025, approximately 44.4% of the Company’s aircraft in scheduled service was operated for United, approximately 28.1% was operated for Delta, approximately 18.9% was operated for American and approximately 8.6% was operated for Alaska.

SkyWest Airlines has been a code-share partner with Delta since 1987, United since 1997, Alaska since 2011 and American since 2012. As of December 31, 2025, SkyWest Airlines operated as a Delta Connection carrier primarily in Salt Lake City, Detroit, Los Angeles, Minneapolis and the Pacific Northwest, a United Express carrier primarily in Los Angeles, San Francisco, Denver, Houston and Chicago, an American carrier primarily in Chicago, Dallas, Los Angeles and Phoenix and an Alaska carrier primarily in the Pacific Northwest.

SkyWest Airlines operates the following aircraft manufactured by MHI RJ Aviation ULC, formerly known as Bombardier Aerospace (“Bombardier”): CRJ900s, CRJ700s, including a 50-seat configuration of the CRJ700, commonly referred to as a “CRJ550,” and CRJ200s, and E175s manufactured by Embraer S.A. (“Embraer”). The CRJ700, CRJ550, CRJ900 and E175 aircraft, commonly referred to as “dual-class aircraft,” have a first class seat configuration typically configured between 50 to 76 seats. SkyWest Airlines operates the CRJ200 as a single-class, 50-seat aircraft and SWC operates the CRJ200 in a 30-seat configuration.

Basis of Presentation

The Company’s consolidated financial statements include the accounts of the Company and the SkyWest Airlines and SWC and SkyWest Leasing segments, with all inter-company transactions and balances having been eliminated.

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In preparing the accompanying consolidated financial statements, the Company has reviewed, as determined necessary by the Company’s management, events that have occurred after December 31, 2025, through the filing date of the Company’s annual report with the U.S. Securities and Exchange Commission.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ materially from those estimates and assumptions.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. The Company had no restricted cash as of December 31, 2025 and 2024.

Marketable Securities

The Company’s investments in debt securities are classified as available-for-sale and are reported at fair market value with the net unrealized appreciation (depreciation) reported as a component of accumulated other comprehensive income in stockholders’ equity. At the time of sale, any realized appreciation or depreciation, calculated by the specific identification method, is recognized in other income and expense. The Company’s position in marketable securities as of December 31, 2025 and 2024 was as follows (in thousands):

Gross unrealized Gross unrealized

Marketable securities:

Gross unrealized Gross unrealized

Marketable securities:

As of December 31, 2025 and 2024, the Company had classified $584.2 million and $574.3 million of marketable securities, respectively, as short-term because it had the intent to maintain a liquid portfolio and the ability to redeem the securities within one year.

Inventories

Inventories include expendable parts and supplies and are valued at cost (FIFO basis) less an allowance for obsolescence based on historical part turnover, excess parts and management’s expectations of future operations. Expendable inventory parts are charged to expense as used. An obsolescence allowance for flight equipment expendable parts is accrued based on estimated lives of the corresponding fleet types, anticipated part usage and salvage values. The inventory allowance as of December 31, 2025 and 2024, was $32.3 million and $28.8 million, respectively.

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Property and Equipment

Property and equipment are stated at cost and depreciated over their useful lives to their estimated residual values using the straight-line basis. The Company revises its estimated useful life and residual values assumptions when facts and circumstances occur, particularly as the Company’s CRJ fleet ages. Effective November 1, 2025, the Company extended the estimated useful lives of certain CRJ airframes and CRJ rotable spare parts by five to seven years to align with the Company’s long-term fleet plan and adjusted residual values on its spare engines to reflect current market conditions. Additionally, at December 31, 2025, the Company extended the useful lives of certain spare engines and E175 rotable spare parts by 7 to 12 years to align with the Company’s long-term fleet plan. The effect of these changes was not material to the consolidated financial statements. The following summarizes the Company’s useful life and residual value assumptions as of December 31, 2025:

Assets Depreciable Life Current Residual Value

SKYW US Equity

SKYW · 10-K · period ended 2025-12-31

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 1C. CYBERSECURITY

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6. [Reserved]

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

SKYW US Equity☆

SKYW · 10-K · period ended 2025-12-31

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 1C. CYBERSECURITY

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6. [Reserved]

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

SKYW US Equity