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SKYW US Equity

Skywest IncIndustrials · Air Transportation, Scheduled · CIK 793733 · FY ends Dec 31
$101.09
+0.31 (+0.30%)
USD · as of 2026-08-21 · marketstack

SKYW · 10-K · period ended 2022-12-31

← all SKYW documents
filed 2023-02-16 · EDGAR original ↗

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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 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.

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Risks That May Disrupt Our Operations

We have experienced, and may continue to experience, difficulty in recruiting, retaining, and upgrading qualified pilots.

Our operations rely on recruiting and training qualified pilots. FAA regulations regarding personnel certification and qualifications, and potential future changes in FAA regulations, could limit the number of qualified new entrants that we could hire. In the event we are unable to hire 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. In response to the COVID-19 pandemic, several major airlines offered their employees early retirement programs in 2020 and publicly announced their intention to hire significant levels of pilots in the near term. As a result, we are experiencing elevated levels of pilot attrition, particularly attrition of our captains. As we have worked to upgrade our first officers to captain, our attrition levels have exceeded our upgrade and replacement levels, and we have experienced a shortage of captains, resulting in a reduction of our flight schedules with our major airline partners that will likely continue in 2023 and may continue into 2024. Based on our current captain and first officer availability, our block hour production in 2023 will likely be lower than our block hour production in 2022. Operating at reduced flying schedules results in operating inefficiencies that negatively impacts our financial results. Further, in September 2022, we increased pay rates for our pilots; however, there is no assurance the higher pay rates will have a significant impact on recruiting, retaining, and upgrading our pilots, which could negatively impact our operations. 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. Should the turnover 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.

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:

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● actual or potential disruptions to U.S. air traffic control systems;

● outbreaks of diseases and other illnesses that affect travel behavior; and

● 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.

Information technology security breaches, hardware or software failures, or other information technology disruptions may negatively impact our operations or reputation.

The performance and reliability of our technology are critical to our ability to compete effectively. Any internal technological error or failure or large-scale external interruption in the technological infrastructure we depend on, such as U.S. air traffic control systems, power, telecommunications or the internet, may disrupt our internal network. Any individual failure or repeated failure of technology could impact our ability to conduct our business and result in increased costs. Our technological systems and related data may be vulnerable to a variety of sources of interruption due to events beyond our control, including natural disasters, terrorist attacks, telecommunications failures, computer viruses, hackers and other security issues.

In addition, cybersecurity threats pose a potential risk to the security of our information technology systems, networks and services, as well as the confidentiality and integrity of our data. Cybersecurity risks may include security breaches, computer viruses, malicious or destructive code, ransomware and other attacks. Unauthorized parties may attempt to gain access to our systems or information through fraud or other means of deception. The methods used to obtain unauthorized access, disable or degrade service or sabotage systems are constantly evolving, and may be difficult to anticipate or to detect for long periods of time. We may not be able to prevent all data security breaches or misuse of data. For example, during 2021, we identified malware on our system resulting from a cyberattack. We successfully quarantined the malware without disruption to our operations. However, this quarantine breach required a rebuild of a triple-redundant server. While moving one of our critical systems to a newly rebuilt server, we experienced a server outage that resulted in approximately 1,700 flight cancellations. We estimate the impact of the outage negatively impacted our 2021 financial results by approximately $15 million (pre-tax). We did not have a similar cybersecurity event during the year ended December 31, 2022. Although we have changed our procedures related to migrating critical systems to new servers, we cannot assure a similar outage will not reoccur. The compromise of our technology systems resulting in the loss, disclosure, misappropriation of, or access to, customers’, employees’ or business partners’ information could result in legal claims or proceedings, liability or regulatory penalties under laws protecting the privacy of personal information, disruption to our operations and damage to our reputation, any or all of which could adversely affect our business and financial condition.

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 particular weather difficulties, including Chicago, Denver, Salt Lake City and San Francisco. A significant interruption or disruption in service at one of our hubs, due to adverse weather, system malfunctions, airport construction, security closures or otherwise, could result

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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.

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 less safe or reliable than other airlines and could affect our relationships with our major airline partners.

We may experience disruption in service with key third-party service providers.

We rely on third party vendors for a variety of services and functions critical to our business, including airframe and engine maintenance, ground handling, fueling, computer reservation system hosting, telecommunication systems and information technology infrastructure and services.

Even though we strive to formalize agreements with these vendors that define expected service levels, our use of outside vendors increases our exposure to several risks. In the event that one or more vendors experiences labor shortages, aircraft part shortages, goes into bankruptcy, 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 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.

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.

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

The terrorist attacks of September 11, 2001 and their aftermath have negatively impacted the airline industry in general, including our operations. The primary effects experienced by the airline industry include a substantial loss of passenger traffic and revenue. 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

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security. Additional terrorist attacks and the fear of such attacks could negatively impact the airline industry, and result in further 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 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 regional jets or acquiring a 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 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, 2022, 375 out of our total 517 aircraft in scheduled service were operating under a capacity purchase arrangement or a prorate agreement with either United or Delta. If our code-share relationship with United or Delta were terminated, we would be significantly impacted and likely would not 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 arrangements, and any such arrangements we might secure may not be as favorable to us as our current agreements. Operating an airline independent from 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. During the year ended December 31, 2022, we amended our capacity purchase agreements with certain major airline partners that reduced certain future contractual fixed monthly payments and increased future 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, 2022, the revenue we recognized was $29.3 million less than the fixed monthly cash payments received,

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primarily due to the capacity purchase agreement amendments we executed during the 2022 year. We currently anticipate we will continue to defer recognition of revenue for certain fixed monthly cash payments throughout 2023.

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 such as COVID-19, 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 its own labor agreements or scope limitations. 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 that reduce certain benefits to us in order to obtain additional aircraft, or for other reasons. Given the competitive nature of the airline industry, we believe limited growth opportunities may result in competitors accepting reduced margins and less favorable contract terms in order to secure new or additional code-share operations. 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 arrangements 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, such as 50-seat regional aircraft, 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. 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.

Our prorate arrangements with our major airline partners may not return to pre-pandemic revenue levels and are terminable upon notice of 120 days or less.

Our prorate revenue, which is derived from passenger fares on flights we operate under our prorate arrangements, decreased from $409.7 million for the year ended December 31, 2021, to $349.3 million for the year ended December 31, 2022, or 14.7%. Our prorate revenue in 2022 was negatively impacted by captain attrition to other airlines, and there is no assurance our prorate revenue will return to pre-pandemic levels in 2023 or thereafter. We may continue to reduce the volume of flying under our prorate arrangements in the future based on several factors including, but not limited to, passenger demand on prorate routes and labor availability.

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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 120 days or less. If one of our major airline partners elects to terminate a flying agreement with notice of 120 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.

We recently formed SkyWest Charter, a subsidiary offering public charter service, that involves significant risk.

In 2022 we formed a new subsidiary, SkyWest Charter, with the intent to offer public charter service to underserved communities in the United States using CRJ200 aircraft in a 30 or less seat configuration under its own FAA operating certificate. When SkyWest Charter begins operations, which is currently expected to occur in 2023, there will be significant risks, including that SkyWest Charter may divert management’s attention or the Company’s resources from our core business and strategies and that the objectives of SkyWest Charter may not materialize or may take longer to materialize than anticipated.

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. To the extent that we experience disagreements regarding the interpretation of our code-share or other agreements, we will likely expend valuable management time and financial resources in our efforts to resolve those disagreements. Those disagreements may result in litigation, arbitration, settlement negotiations or other proceedings. Furthermore, there can be no assurance that any or all of those 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 operating results and financial condition.

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 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 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 contracts.

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

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result in a material reduction in our earnings. For example, during the year ended December 31, 2022 and 2021, our salary, wage and benefit costs constituted approximately 42.9% and 40.5% of our total operating costs, respectively. In September 2022, we entered into a collective bargaining agreement with our pilots, increasing the pay rates for pilots. 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 costs. 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 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, under our capacity purchase contracts with United, Delta, American and Alaska, 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 labor costs, including crew training costs, certain aircraft maintenance expenses, and overhead costs. During the year ended December 31, 2022, approximately 91.8% of our code-share operating costs were reimbursable at pre-determined rates and 8.2% of our code-share operating costs were directly reimbursed costs, often referred to as pass-through costs. Additionally, our aircraft maintenance costs may increase annually as our fleet ages at a higher rate than our pre-determined rates allow. 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 arrangements, 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.

Our business is labor intensive, requiring large numbers of pilots, flight attendants, maintenance technicians and other personnel. Any new collective bargaining agreements entered into by other regional carriers with their work forces may also result in higher industry wages and increased pressure on us to increase the wages and benefits of our employees. Future agreements with represented employees may be on terms that are not as attractive as our current agreements or comparable to agreements entered into by our competitors. Notably, in September 2022, we entered into a collective bargaining agreement with our pilots, increasing the pay rates for pilots. The amended collective bargaining agreement is anticipated to result in an increase to our pilot costs. For illustrative purposes, under SkyWest Airlines’ amended collective bargaining agreement, the first-year pay rate for first officers increased from approximately $46/flight hour to $90/flight hour and the first-year CRJ and E175 captain pay rate increased from approximately $76/flight hour and $81/flight hour, respectively, to $140/flight hour for both CRJ and E175 captains. During the year ended December 31, 2022, we amended our capacity purchase agreements with certain major airline partners that resulted in higher compensation for our increased pilot pay rates.

SkyWest’s 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 attention and disrupt operations, which may result in increased operating expenses and may negatively impact our financial results. Moreover, we cannot predict the outcome of any future negotiations relating to union representation or collective bargaining agreements. Agreements reached in union-involved collective bargaining may increase our operating expenses and negatively impact our financial results.

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We may experience an increase in fuel prices in our prorate 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 arrangements, 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 operations and expect to bear the economic risk of fuel price fluctuations on our charter operations. As of December 31, 2022, we operated 41 CRJ200s under a prorate agreement with United and 25 CRJ200s under a prorate agreement with Delta. Our operating and financial results with respect to these prorate arrangements 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 passenger load factors.

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

Our business depends upon the efforts of our chief executive officer, Russell A. Childs, and our other key management and operating personnel. Under the terms of the Payroll Support Program 3 Agreement, we are subject to certain limitations on executive compensation through April 1, 2023. 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.

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 or General Electric 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, 2022, we had a total of approximately $3.4 billion in total long-term debt obligations. Our long-term debt obligations include $3.05 billion related to the acquisition of aircraft, $155.1 million of long-term debt secured by spared engines, and $200.6 million related to borrowings under the Payroll Support Program Agreements with U.S. Department of the Treasury (“Treasury”). Excluding aircraft financed by our major airline partners that we operate for them under contract, we had 43 aircraft under long-term lease agreements as of December 31, 2022, with 32 aircraft with a lease termination date of March 31, 2024 and 11 aircraft with remaining terms up to eight years. Future minimum lease payments due under all long-term operating leases were approximately $202.9 million at December 31, 2022. At a 6.1% discount factor, which is the average rate used to approximate the implicit rates within the applicable leases, the present value of these lease obligations was equal to approximately $160.3 million at December 31, 2022. Our high level of fixed obligations could 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 or leasing the aircraft on a monthly basis. The aircraft compensation structure varies by agreement but is intended to cover either our aircraft principal and interest debt service costs, our aircraft depreciation and interest expense or our aircraft lease expense costs while the aircraft is under contract. In the event any of our major airline partners defaults under a

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capacity purchase agreement or we are unable to extend the flying contract terms on aircraft with ongoing financial obligations, our financial position and financial results could be materially adversely affected.

In addition, given the negative effects the COVID-19 pandemic has had and may continue to have on our business, including demand fluctuations, labor shortages or other effects, 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 items. 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 leases and debts or comply with certain covenants under SkyWest Airlines’ line of credit or with other material provisions of our contractual obligations.

Our anticipated aircraft purchases are expected to require an increase in our leverage and the related cash requirements.

As of December 31, 2022, we have firm purchase commitments for four E175 aircraft and spare engines totaling $140.3 million. Over the next several years, if 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, lease and purchase obligations, the size of these 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.

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

As of December 31, 2022, we had approximately $5.5 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 residual value of any of our aircraft types is determined to be lower than the residual value assumptions used in our depreciation policies, the applicable aircraft type in our fleet may be impaired and may result in a material reduction in the book value of applicable aircraft types we operate or we may need to prospectively modify our depreciation policies. In 2021, we recorded a non-cash impairment of $84.6 million attributable to certain CRJ900 aircraft operating with a major airline partner as a result of contract expirations and the uncertainty about our ability to redeploy the CRJ900 aircraft with another major airline partner. 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. Additionally, in 2022, we committed to a plan to sell 14 CRJ700 aircraft, resulting in a non-cash impairment of $51.4 million. Future decisions to sell aircraft could potentially result in write-downs for aircraft held-for sale.

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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, 35 CRJ700 aircraft, and engines used on CRJ aircraft to third parties as of December 31, 2022. 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 involves significant risk.

We have entered into a strategic engine joint venture with a third party to lease engines to other parties. This strategic venture involves significant 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 a partnership with a third party to develop demand for electric-powered aircraft that involves significant uncertainty and risk.

We have entered into a strategic partnership with Eve UAM, an Embraer company, to develop a network of deployment for Eve UAM’s eVTOL aircraft. To support this effort, SkyWest and Eve plan to dedicate a team to focus on vehicle design, vertiport specifications, and the certification roadmap for eVTOL operations. This strategic partnership involves significant risks, including:

● future customer demand for eVTOL aircraft is uncertain;

● 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 partnership with Eve and future benefits may not materialize.

In 2022, we acquired 1,000,000 shares of common stock of Eve Holding, Inc. (“Eve”) and a warrant giving us the right to acquire 1,500,000 shares of common stock of Eve at an exercise price of $0.01 per share. The Company also received a put option from an Eve shareholder for the 1,000,000 shares of common stock of Eve payable in aircraft parts credits. The Company acquired the shares of common stock, warrant and put option (collectively, the “Eve Investments”) for $10.0 million. At December 31, 2022, the fair value of our Eve Investments was $21.4 million and

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reductions in the trading market price of Eve’s common stock will likely negatively impact our financial condition and net income.

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. 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 2022, we produced approximately 5.5 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 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 we will resume dividend payments and/or stock repurchases in the future.

Historically, we have paid dividends and repurchased shares of our common stock in varying amounts. During 2020, 2021 and through September 30, 2022, we were restricted from paying dividends and repurchasing shares of our common stock under the Payroll Support Program Agreement and the Treasury Loan Agreement under the Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), the Payroll Support Program Extension Agreement under the Consolidated Appropriations Act, 2021 (the “2021 Appropriations Act”) and the Payroll Support Program 3 Agreement under the American Rescue Plan Act of 2021 (the “American Rescue Plan Act”) with Treasury.

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 and the number of shares of common stock we may repurchase will depend upon our financial condition and results of operations and other factors deemed relevant by our board of directors.

If we resume paying cash dividends or resume a share repurchase program, such dividends and repurchases could affect our stock price and increase its volatility. Additionally, resuming our share repurchase program and any

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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, 2022, our common stock closing price varied between a high of $41.83 and a low of $14.87. The market price of our common stock may fluctuate significantly for a variety of reasons, including: general market, political and other economic conditions; 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 declines and volatility, significantly impacting the market price of securities issued by many companies, including us and other companies in our industry.

We issued warrants to purchase shares of our common stock to Treasury for relief we received under the CARES Act, the 2021 Appropriations Act, and the American Rescue Plan Act.

In 2020, we issued warrants to purchase 370,720 shares of our common stock with an exercise price of $28.38 per share to Treasury as consideration for payroll support payments we received under the CARES Act payroll support program. Also, during 2020 we issued warrants to purchase 211,416 shares of our common stock with an exercise price of $28.38 per share to Treasury as consideration for borrowing $60.0 million under the Treasury Loan Agreement. In 2021, we issued warrants to purchase 124,773 shares of our common stock with an exercise price of $40.41 per share to Treasury as consideration for payroll support payments we received under the 2021 Appropriations Act. Additionally, in 2021 we issued warrants to purchase 78,317 shares of our common stock with an exercise price of $57.47 per share to Treasury as consideration for payroll support payments we received under the American Rescue Plan Act.

If Treasury exercises its option to purchase shares of our common stock under warrants previously issued to Treasury, such exercise will be dilutive to our shareholders. As of December 31, 2022, Treasury has not exercised any of the warrants issued.

Provisions of our charter documents 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. The provisions of the Utah Control Shares Acquisitions Act 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.

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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.

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 $19.8 million of debt for a 14 CFR Part 135 air carrier. The debt is secured by the Part 135 air carrier’s aircraft and engines and has a five-year term. The purpose of the arrangement is to increase the potential number of commercial pilots in the Company’s hiring pipeline. 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.

ITEM 1B. UNRESOLVED STAFF COMMENTS

None

ITEM 2. PROPERTIES

Flight Equipment

As of December 31, 2022, 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 2023 and thereafter, including, but not limited to, contract expirations that are not renewed, labor shortages, reductions in our prorate fleet, lease expirations 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.

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; Tucson, Arizona; Chicago, Illinois; Detroit, Michigan; Nashville, Tennessee; South Bend, Indiana; and Fort Wayne,

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Indiana. 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; and Colorado Springs, Colorado.

ITEM 3. LEGAL PROCEEDINGS

We are subject to certain legal actions which we consider routine to our business activities. As of December 31, 2022, 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, 2023, there were approximately 3,917 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.

Dividends

The Company did not declare dividends for the years ended December 31, 2021 and 2022. Pursuant to the terms of our agreements with Treasury, the Company was restricted from paying dividends through September 30, 2022. There can be no assurance that we will pay dividends in the future.

Issuer Purchases of Equity Securities

Our Board of Directors has adopted a stock repurchase program which authorizes the Company 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 was authorized in 2019 for the repurchase of up to $250.0 million of our common stock. As of December 31, 2022, we had repurchased 1,966,353 shares of our common stock for $110.4 million under this authorization. No shares of common stock were repurchased under our repurchase program during the twelve months ended December 31, 2022. We may resume stock repurchases under our 2019 program now that the restrictions under our agreements with Treasury have lapsed.

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, 2022, 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, 2022 and 2021. Also discussed is our financial condition as of December 31, 2022 and 2021. 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 2022 and 2021 items and year-to-year comparisons between 2022 and 2021. Discussions of 2020 items and year-to-year comparisons between 2021 and 2020 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, 2021.

Overview

We have the largest regional airline operation in the United States. As of December 31, 2022, we offered scheduled passenger and air freight service with approximately 1,620 total daily departures to destinations in the United

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States, Canada, and Mexico. As of December 31, 2022, we had 625 total aircraft in our fleet, including 517 aircraft in scheduled service or under contract under our code-share agreements, summarized as follows:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Alaska 42 ​ — ​ — ​ — ​ 42

Aircraft in scheduled service or under contract ​ 236 ​ 41 ​ 104 ​ 136 ​ 517

Leased to third parties — ​ 5 ​ 35 ​ — ​ 40

*As of December 31, 2022, other aircraft included: supplemental spare aircraft supporting our code-share agreements that may be used in future code-share or leasing arrangements, aircraft transitioning between code-share agreements with our major airline partners, aircraft held for sale, or aircraft that are scheduled to be disassembled for use as spare parts.

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. Our success is principally centered on our ability to meet the needs of our major airline partners through providing a reliable and safe operation at attractive economics.

During the 2022 calendar year, we made changes to our fleet count under our flying agreements, including the addition of 25 new E175 aircraft. Additionally, during the 2022 calendar year, we increased the number of CRJ700 aircraft we leased to third parties from 34 to 35 aircraft.

We anticipate our fleet will continue to evolve, as we are scheduled to add a total of three new E175 aircraft with Delta in 2023 and 2024 and one new E175 aircraft with Alaska in 2025. Timing of these anticipated deliveries may be subject to change as we are coordinating with our major airline partners in response to the COVID-19 recovery, labor availability or other factors. Our primary objective in the fleet changes is to improve our profitability by adding new E175 aircraft and used CRJ aircraft to capacity purchase agreements, and potentially removing older aircraft from service that typically require higher maintenance costs.

For the year ended December 31, 2022, approximately 42.6% of our aircraft in scheduled service or under contract were operated for United, approximately 30.0% were operated for Delta, approximately 19.3% were operated for American and approximately 8.1% 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 capacity purchase arrangements and our prorate flying arrangements. For the year ended December 31, 2022, contract flying revenue and prorate revenue represented approximately 88.0% and 12.0%, respectively, of our total flying agreements revenue. On contract 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. On prorate routes, we have more control over scheduling, pricing and seat inventories, we share passenger fares with our major airline partners according to prorate formulas and we are responsible for the operating costs of the prorate flights, including fuel and airport costs.

Financial Highlights

We had total operating revenues of $3.0 billion for the year ended December 31, 2022, a 10.7% increase compared to total operating revenues of $2.7 billion for the year ended December 31, 2021. We had net income of $73.0 million, or $1.44 per diluted share, for the year ended December 31, 2022, compared to net income of $111.9 million, or $2.20 per diluted share, for the year ended December 31, 2021. The significant items affecting our revenue and operating expenses during the year ended December 31, 2022, are outlined below:

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Revenue

The number of aircraft we have in scheduled service and the number of block hours we incur on our flights are primary drivers to 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 to our revenue under our prorate flying agreements. The number of aircraft we have in scheduled service or under contract under code-share agreements increased from 509 as of December 31, 2021, to 517 as of December 31, 2022; the number of block hours decreased from 1.32 million in 2010 to 1.25 million in 2022, or by 4.9%.

Our capacity purchase revenue increased $345.1 million, or 15.6%, from 2021 to 2022. The change was primarily as a result of additional aircraft operating under our capacity purchase agreements in 2022 compared to 2021 and the temporary rate reductions we provided our major airline partners under our capacity purchase agreements during the year ended December 31, 2021 for COVID-19 relief, as further described in the section of this report entitled “Results of Operations.” As a result of decreased flight schedules and passengers carried on our prorate routes, our prorate revenue decreased $60.3 million, or 14.7% in 2022, as compared to 2021.

Operating Expenses

Our total operating expenses increased $386.1 million, or 15.8% for the year ended December 31, 2022, compared to the year ended December 31, 2021. This increase was primarily due to $422.7 million in payroll support grants received from Treasury that was recorded an offset to our operating expenses for the year ended December 31, 2021. We did not have a comparable payroll support grant for the year ended December 31, 2022. 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 activity for 2022:

​ ​ ​ ​ ​ ​ ​ ​ ​

During 2022, we took delivery of 25 new E175 aircraft and placed the aircraft into service or under contract under capacity purchase agreements. We removed 10 CRJ700 aircraft, three CRJ900 aircraft and four CRJ200 aircraft from service during 2022. We are evaluating alternative uses for the aircraft removed from service.

Results of Operations

2022 Compared to 2021

Operational Statistics

The following table sets forth our major operational statistics and the associated percentages of change for the periods identified below. The decrease in block hours and departures during the year ended December 31, 2022, compared to the year ended December 31, 2021, was primarily due to labor constraints, including the number of available captains in 2022.

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​ ​ ​ ​ ​ ​ ​ ​

​ ​ For the year ended December 31,

Block hours by aircraft type: 2022 2021 % Change

​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​

Passenger load factor 83.4 % 74.6 % 8.8 pts

Average passenger trip length (miles) 493 ​ 532 ​ (7.3) %

Operating Revenues

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

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ For the year ended December 31,

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. 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 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 $350.1 million was primarily due to an increase in the number of E175 aircraft we operated under our contracts with our major airline partners during the year ended December 31, 2022, compared to the year ended December 31, 2021, and rate increases since December 31, 2021. From December 31, 2021 to December 31, 2022, we added 25 E175 aircraft under capacity purchase agreements. Our E175 aircraft completed block hours increased 3.5% for the year ended December 31, 2022, compared to the year ended December 31, 2021. Additionally, in response to the COVID-19 demand reduction experienced by our major airline partners in 2021, we provided temporary rate reductions to our major airline partners under our capacity purchase agreements during the year ended December 31, 2021. We did not provide our major airline partners temporary rate reductions during the year ended December 31, 2022.

The decrease in “Capacity purchase agreements aircraft lease revenue” of $5.0 million was primarily due to revenue deferred during the year ended December 31, 2022, offset by lease revenue from the 25 additional E175 aircraft placed under contract during the year ended December 31, 2022. During the year ended December 31, 2022, we amended our capacity purchase agreements with certain major airline partners that reduced certain future contractual fixed monthly payments and increased future contractual variable payments. As a result of these amendments, we deferred recognizing lease revenue on $22.1 million of the allocated fixed monthly lease payments received during the year ended December 31, 2022, under the straight-line method.

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The decrease in prorate agreements revenue of $60.3 million was primarily due to the decrease in the number of prorate passengers and passenger revenue we received on routes we operated under our prorate agreements during 2022, compared to 2021. Due to labor constraints, including the number of available captains, we operated fewer aircraft under our prorate agreements during the year ended December 31, 2022, compared to the year ended December 31, 2021.

The increase in lease, airport services and other revenues of $6.7 million was primarily due an increase in the number of flights operated at locations where we were contracted to provide airport customer service during 2022 compared to 2021. We also leased 35 CRJ700 aircraft to third parties during 2022, compared to 34 CRJ700 aircraft leased to a third parties during 2021.

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 $224.9 million, or 22.8%, increase in salaries, wages and benefits was due to increased costs to attract and retain aviation professionals, particularly pilots. In 2022, we increased the pay rates to various workgroups, including our pilots, that resulted in an increase to our salaries, wages and benefits for the year ended December 31, 2022, compared to the year ended December 31, 2021.

Aircraft maintenance, materials and repairs.The $173.6 million, or 21.2%, decrease in aircraft maintenance expense was primarily due to reliability improvement costs incurred on a portion of SkyWest Airlines’ CRJ700 and CRJ200 fleets, such as engine maintenance expense, during the year ended December 31, 2021. As a result of the maintenance work completed in 2021, our maintenance events were lower for the year ended December 31, 2022, compared to the year ended December 31, 2021.

Depreciation and amortization. The $45.6 million, or 10.4%, decrease in depreciation and amortization expense was primarily due to certain CRJ200 aircraft that became fully depreciated after December 31, 2021. This reduction in depreciation on our CRJ200 fleet was partially offset by an increase in depreciation expense due to the acquisition of 25 new E175 aircraft and spare engines in 2022.

Aircraft fuel.The $1.4 million, or 1.3%, increase in fuel cost was primarily due to an increase in our average fuel cost per gallon from $2.49 in 2021 to $4.14 in 2022, offset by a decrease in the number of flights we operated under our prorate arrangements and the corresponding decrease in gallons of fuel we purchased. We purchase and incur expense for all fuel on flights operated under our prorate agreements. All fuel costs incurred under our capacity purchase contracts 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, for the periods indicated:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ For the year ended December 31,

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Aircraft rentals. The $12.0 million, or 18.9%, increase in aircraft rentals was primarily related to a shortened expected useful life on 21 leased CRJ aircraft that are in the process of being stored prior to the lease expiration in early 2024, which resulted in an acceleration of lease expenses on those aircraft.

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. 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. The $33.1 million, or 31.7%, decrease in airport-related expenses for the year ended December 31, 2022, compared to the year ended December 31, 2021, was primarily due to a decrease in subcontracted airport services, landing fees and deicing events as a result of a decrease in the number of flights we operated under our prorate arrangements.

Special items. Special items for 2021 consisted of a non-cash impairment charge on SkyWest Airlines’ CRJ900 fleet of $84.6 million.

Payroll support grant. During 2021, we entered into two Payroll Support Program Agreements with U.S. Treasury that provided certain payroll support relief payments that were recognized as a reduction in labor expense over the periods the grants intended to compensate. We recognized $422.7 million in payroll support grant proceeds we received as a reduction to our operating expenses for the year ended December 31, 2021. We did not have a comparable payroll support grant during the year ended December 31, 2022.

Other operating expenses.Other operating expenses primarily consist of property taxes, hull and liability insurance, simulator costs, crew per diem, crew hotel costs and credit loss reserves. The $62.2 million, or 24.3%, increase in other operating expenses was primarily related to an asset held for sale write-down of $51.4 million during the year ended December 31, 2022, and an increase in training expenses and simulator costs related to an increase in pilot hiring during 2022.

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

Interest Expense.The $4.0 million increase in interest expense was primarily related an increase in long-term debt subsequent to December 31, 2021, as well as a higher average effective interest rate in 2022 as compared to 2021. Our average effective interest rate for 2022 and 2021 was 4.0% and 3.8%, respectively.

Interest income. Interest income increased $16.5 million, from $1.1 million during the year ended December 31, 2021, to $17.6 million during the year ended December 31, 2022. The increase in interest income was primarily related to an increase in marketable securities from $602.0 million at December 31, 2021 to $944.2 million at December 31, 2022, as well as an increase in the average interest rates attributed to our marketable securities from 2021 to 2022.

Other income (expense), net. Other income (expense), net increased $24.1 million, compared to 2021. Other income (expense), net primarily consists of the unrealized gains on our investments in other companies, income related to our investment in a joint venture with a third party and gains or losses on the sale of assets. During 2022, we recorded gains from our investments in other companies of $11.4 million and gains, net of losses, of $7.9 million on the sale of assets.

Summary of provision for income taxes:

Provision for income taxes. For the years ended December 31, 2022, and December 31, 2021, our income tax provision rates were 21.2% and 25.7%, respectively, which include the statutory federal income tax rate of 21% and other reconciling income tax items, including state income taxes and the impact of non-deductible expenses. For the year ended December 31, 2022, the decrease in our effective tax rate primarily related to the lapse of a previously recorded uncertain tax position liability of $7.3 million that was recognized as a benefit in 2022, partially offset by a $1.7 million valuation allowance on state net operating losses anticipated to expire prior to utilization recorded in 2022. 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 $73.0 million, or $1.44 per diluted share, for the year ended December 31, 2022, compared to net income of $111.9 million, or $2.20 per diluted share, for the year ended December 31, 2021.

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Our Business Segments 2022 compared to 2021:

For the years ended December 31, 2022 and 2021, our reporting segments included SkyWest Airlines and SkyWest Leasing.

Our chief operating decision maker analyzes the profitability of operating aircraft under our code-share agreements separately from the profitability of our financing new aircraft acquired through debt and cash placed under our capacity purchase agreements, currently consisting of our E175 fleet, and our return on such aircraft financing. More specifically, the SkyWest Leasing segment includes an allocation of revenue from our capacity purchase agreements attributed to our financing of new aircraft through debt and cash covered under such agreements, and the respective depreciation and interest expense of such financed aircraft. The SkyWest Leasing segment also includes the activity of acquiring and leasing used regional jet aircraft and regional aircraft engines to other entities. The SkyWest Leasing segment’s total assets and capital expenditures include new E175 aircraft acquired through the issuance of debt and our aircraft and engines leased to other entities. Additionally, aircraft removed from SkyWest Airlines operations and held for sale are included in the SkyWest Leasing segment.

The SkyWest Airlines segment includes all other revenue and operating expenses attributed to operating aircraft under our capacity purchase agreements and all revenue and operating expenses attributed to our prorate agreements and airport service agreements.

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

The following table sets forth our segment data for the years ended December 31, 2022 and 2021 (in thousands):

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ For the year ended December 31,

​ ​ (dollar amounts in thousands)

Operating Revenues: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Operating Expenses and Interest Expense: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Segment profit (loss): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

SkyWest Airlines Segment Profit (Loss). SkyWest Airlines segment profit decreased $47.1 million during 2022, compared to 2021, from $1.5 million segment profit for the year ended December 31, 2021 to $45.6 million segment loss for the year ended December 31, 2022. Significant items contributing to the SkyWest Airlines segment profit (loss) are set forth below.

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SkyWest Airlines operating revenues increased $299.9 million, or 13.7%, from 2021 to 2022, due to the additional E175 aircraft operating under our capacity purchase agreements. Additionally, during 2021, SkyWest Airlines provided temporary rate reductions to our major airline partners under our capacity purchase agreements during the year ended December 31, 2021, in response to the COVID-19 demand reduction experienced by our major airline partners in 2021. We did not provide temporary rate reductions to our major airline partners in 2022. SkyWest Airlines’ block hour production decreased to 1,254,392, or 4.9%, for 2022 from 1,319,628 for 2021, primarily due to reduced flight schedules as a result of labor constraints, including the number of available captains.

SkyWest Airlines’ operating expenses and interest expense increased $347.0 million, or 15.8%, from 2021 to 2022 due to the following primary factors:

SkyWest Leasing Segment Profit. SkyWest Leasing profit decreased $51.6 million, or 34.1%, during 2022, compared to 2021. SkyWest Leasing revenue decreased $8.5 million, or 1.6%, primarily due to deferring lease revenue, offset by lease revenue from the 25 additional E175 aircraft placed under contract during the year ended December 31, 2022, compared to December 31, 2021. During the year ended December 31, 2022, we amended our capacity purchase agreements with certain major airline partners that reduced certain future contractual fixed monthly payments and increased future contractual variable payments. As a result of these amendments, we deferred recognizing lease revenue on $22.1 million of the allocated fixed monthly lease payments received during the year ended December 31, 2022, under the straight-line method.

SkyWest Leasing operating expenses and interest expense increased $43.1 million, or 11.7%, from 2021 to 2022 primarily due to a non-cash impairment charge of $51.4 million related to 14 CRJ700 aircraft that were held for sale in 2022. During 2022, the Company committed to a formal plan to sell 14 CRJ700 aircraft. The aircraft are expected to be disposed of via sale within the next 12 months and met the criteria to be classified as assets held for sale. The Company presented the assets held for sale at the lower of their current carrying value or their fair market value less costs to sell, resulting in a non-cash impairment charge.

Liquidity and Capital Resources

As of December 31, 2022, we had $1.0 billion in cash, cash equivalents and marketable securities and $70.1 million available for borrowings under our line of credit. Given our available liquidity as of December 31, 2022, we

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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 of cash, cash equivalents and marketable securities increased from $860.4 million as of December 31, 2021, to $1.0 billion as of December 31, 2022, or by $186.8 million. Our total long-term debt, including current maturities increased from $3,109.2 million as of December 31, 2021, to $3,380.3 million as of December 31, 2022, or by $271.1 million, primarily due to debt issued to finance 25 new E175 aircraft and spare engines, partially offset by scheduled debt payments for the 2022 year. At December 31, 2022, our total capital mix was 44.4% equity and 55.6% long-term debt, compared to 45.5% equity and 54.5% long-term debt at December 31, 2021.

As of December 31, 2022 and 2021, we had $59.2 million and $61.4 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, 2022 and 2021.

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, 2022 and 2021, and our total cash and marketable securities position as of December 31, 2022 and December 31, 2021 (in thousands).

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ For the year ended December 31,

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ December 31, December 31, ​ ​ ​

Cash Flows provided by Operating Activities

Our cash flows provided by operating activities was $480.4 million in 2022, compared to $831.8 million in 2021. 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, asset impairment charges, 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, accrued liabilities, deferred revenue and unbilled revenue.

The decrease in our cash flow from operations in 2022 compared to 2021, was primarily due to timing of payments associated with our accounts payable and other current liabilities at the end of 2021 compared to the end of 2022, which reduced our cash flow from operations to $273.2 million in 2022. Additionally, depreciation and amortization, a non-cash adjustment to reconcile to net income, decreased to $394.6 million during 2022 from $440.2 million during 2021.

Cash Flows used in Investing Activities

Our cash flows used in investing activities was $904.9 million in 2022, compared to $698.5 million in 2021. 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 various long-term asset and long-term liability accounts.

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The increase in our cash flow used in investing activities in 2022 compared 2021, was primarily due to an increase in cash used for purchases of marketable securities, net of sales of marketable securities, of $354.2 million, resulting from the transfer of cash into marketable securities accounts. Cash used in purchases of marketable securities, net of sales of marketable securities was $346.0 million in 2022, compared to cash provided by sales of marketable securities, net of purchases of marketable securities of $8.2 million in 2021. Additionally, cash used on new aircraft deposits, net of previously made deposits applied towards acquired aircraft, provided $101.3 million of cash during 2022 compared to using $92.7 million of cash during 2021, based on the timing of new aircraft orders and aircraft deliveries.

Cash Flows provided by (used in) Financing Activities

Our cash flows provided by financing activities was $269.1 million in 2022, compared to cash used in financing activities of $90.6 million in 2021. Our financing cash flows are typically impacted by various factors including proceeds from issuance of debt, principal payments on debt obligations, repurchases our common stock and payment of cash dividends.

The $359.7 million increase in cash provided by financing activities for the year ended December 31, 2022, compared to the year ended December 31, 2021, was primarily due to an increase of $234.5 million in proceeds from the issuance of long-term debt primarily related to the acquisition of 25 E175 aircraft and an increase in debt secured by engines during 2022. Additionally, cash used for principal payments on long-term debt decreased $125.5 million from the year ended December 31, 2021, to the year ended December 31, 2022, primarily due to paying off a portion of our long-term debt during 2021.

Significant Commitments and Obligations

General

The following table summarizes our commitments and obligations as noted for each of the next five years and thereafter (in thousands):

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Purchase Commitments and Options

We are coordinating with our major airline partners and aircraft manufacturers on the timing of upcoming fleet deliveries under previously announced deals. The anticipated future aircraft delivery dates are subject to change. As of December 31, 2022, we had a firm purchase commitment for four E175 aircraft from Embraer with scheduled delivery dates anticipated through 2025.

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 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 four E175 aircraft with approximately 80-85% debt and the remaining balance with cash.

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Aircraft Lease and Facility Obligations

We also have significant long-term lease obligations, primarily relating to our aircraft fleet. Excluding aircraft financed by our major airline partners that we operate for them under contract, we had 43 aircraft under lease with remaining terms ranging from one year to eight years as of December 31, 2022. Future minimum lease payments due under all long-term operating leases were approximately $202.9 million at December 31, 2022. Assuming a 6.1% discount rate, which is the average incremental borrowing rate 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 $160.3 million at December 31, 2022.

Long-term Debt Obligations

As of December 31, 2022, we had $3.05 billion of long-term debt obligations related to the acquisition of aircraft. The average effective interest rate on those long-term debt obligations was approximately 4.0% at December 31, 2022. We also had $200.6 million of long-term debt obligations under the Payroll Support Program Agreements and $155.1 million of long-term debt secured by spare engines.

Under our capacity purchase arrangements, our major airline partners compensate us for our costs of owning or leasing the aircraft on a monthly basis. The aircraft compensation structure varies by agreement but is intended to cover either our aircraft principal and interest debt service costs, our aircraft depreciation and interest expense or our aircraft lease expense costs while the aircraft is under contract.

Guarantees

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

We have guaranteed $19.8 million in promissory notes of a third party in event the third party defaults on its 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 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. During the year ended December 31, 2022, we amended our capacity purchase agreements with certain major airline partners that reduced certain future contractual fixed monthly payments and increased future contractual variable payments. Accordingly, we re-evaluated the allocation of the total consideration between the lease

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and non-lease components for the affected amended agreements, including the allocation of the consideration to the fixed and variable lease components. As a result of these amendments, we deferred recognizing lease revenue on $22.1 million of the allocated fixed monthly lease payments received during the year ended December 31, 2022, under the straight-line method.

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 2022, we deferred $18.7 million of fixed monthly payments and recognized $11.5 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 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, 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, 2022.

Long-Lived Assets

As of December 31, 2022, we had approximately $5.5 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.

During 2022, we committed to a formal plan to sell 14 CRJ700 aircraft. The aircraft are expected to be disposed of via sale within the next 12 months. Accordingly, the Company determined the aircraft met the criteria to be classified as assets held for sale. The Company presented the $56.7 million of assets held for sale at the lower of their current carrying value or their fair market value less costs to sell and included the amount in “Other current assets” on the Company’s consolidated balance sheet. The fair values are based upon observable and unobservable inputs, including market trends and conditions. The assumptions used to determine the fair value of the assets held for sale are subject to inherent uncertainty and could produce a wide range of outcomes which the Company will continue to monitor in future periods as new information becomes available. Prior to the ultimate sale of the assets, subsequent changes in the estimate of the fair value of the assets held for sale will be recorded as a gain or loss with a corresponding adjustment to the assets’ carrying value. In connection with the classification of these assets as held for sale, the Company recorded an impairment loss of $51.4 million, which is included in “Other operating expenses” on the Company’s consolidated statements of comprehensive income and in the SkyWest Leasing segment for the year ended December 31, 2022.

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.

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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.

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 contract flying arrangements, United, Delta, American and Alaska have agreed to bear the economic risk of fuel price fluctuations on our contracted flights. We bear the economic risk of fuel price fluctuations on our prorate operations. For each of the years ended December 31, 2022, 2021 and 2020, approximately 12%, 16% and 13% of our total flying agreements revenue was derived from prorate arrangements. For the years ended December 31, 2022, 2021 and 2020, the average price per gallon of aircraft fuel was $4.14, $2.49 and $1.89, respectively. For illustrative purposes only, we have estimated the impact of the market risk of fuel fluctuations on our prorate 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 $27.1 million, $26.8 million and $15.4 million in fuel expense for the years ended December 31, 2022, 2021 and 2020, respectively.

Interest Rates

As of December 31, 2022, our long-term debt had fixed interest rates. We currently intend to finance the acquisition of aircraft through manufacturer financing or long-term borrowings. Changes in interest rates may impact the actual cost to us 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. A hypothetical 50 basis point change in market interest rates would not have a material effect on our financial results.

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 significant 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 42.9% of our total operating expense for year ended December 31, 2022. For illustrative purposes, a hypothetical increase of 25% in our salaries, wages and benefits during the year ended December 31, 2022, would have increased our operating expenses by approximately $302.9 million.

In September 2022, we amended our collective bargaining agreement with our pilots, which was in effect for only a portion of the year ended December 31, 2022. The amended collective bargaining agreement is anticipated to result in an increase to our pilot costs. For illustrative purposes, under SkyWest Airlines’ amended collective bargaining agreement, the first-year pay rate for first officers increased from approximately $46/flight hour to $90/flight hour and the first-year CRJ and E175 captain pay rate increased from approximately $76/flight hour and $81/flight hour, respectively, to $140/flight hour for both CRJ and E175 captains. During the year ended December 31, 2022, we

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amended our capacity purchase agreements with certain major airline partners that resulted in higher compensation for our increased pilot pay rates.

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, 2022 and 2021, the related consolidated statements of comprehensive income (loss), stockholders’ equity and cash flows for each of the three years in the period ended December 31, 2022, and the related notes and the financial statement schedule listed in the Index at Item 15(a)2 (collectively referred to as the “financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2022 and 2021, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2022, 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, 2022, 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 16, 2023 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 include 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.

​​​ ​​​​

Valuation of fixed overhead 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 16, 2023

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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 ​ (2,884,084) ​ (2,731,060)

​ ​ ​ ​ ​ ​ ​

OTHER ASSETS: ​ ​ ​ ​ ​ ​

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 71,726 ​ 78,886

​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​

COMMITMENTS AND CONTINGENCIES (Note 7) ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​

STOCKHOLDERS’ EQUITY: ​ ​ ​ ​ ​

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

Accumulated other comprehensive loss ​ (3,802) ​ ​ —

See accompanying notes to consolidated financial statements.

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SKYWEST, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands, except per share amounts)

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ Year Ended December 31,

OPERATING REVENUES: ​ ​ ​ ​ ​

OPERATING EXPENSES: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Special items ​ ​ — ​ ​ 84,592 ​ ​ — ​

OTHER INCOME (EXPENSE): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

BASIC EARNINGS (LOSS) PER SHARE ​ $ 1.44 ​ $ 2.22 ​ $ (0.17) ​

DILUTED EARNINGS (LOSS) PER SHARE ​ $ 1.44 ​ $ 2.20 ​ $ (0.17) ​

Weighted average common shares: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

COMPREHENSIVE INCOME (LOSS): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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

Net income (loss) — ​ ​ — ​ (8,515) — ​ — ​ — ​ (8,515)

Stock based compensation expense — ​ ​ 6,802 ​ — — ​ — ​ — ​ 6,802

Treasury stock purchases — ​ ​ — ​ — (386) ​ (20,000) ​ — ​ (20,000)

Cash dividends declared ($0.14 per share) — ​ ​ — ​ (7,019) — ​ — ​ — ​ (7,019)

Warrants issued to U.S. Treasury — ​ ​ 8,248 ​ — — ​ — ​ — ​ 8,248

Stock based compensation expense — ​ 8,685 ​ — — ​ — ​ — ​ 8,685

Warrants issued to U.S. Treasury — ​ ​ 5,804 ​ ​ — ​ — ​ ​ — ​ ​ — ​ 5,804

Stock based compensation expense — ​ 9,159 ​ — — ​ — ​ — ​ 9,159

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: ​ ​ ​ ​ ​

Write-off of maintenance assets ​ ​ — ​ ​ — ​ ​ 3,255 ​

Increase (decrease) in credit loss reserves ​ ​ (4,591) ​ ​ (4,249) ​ ​ 17,087 ​

Loss (gain) on disposal of fixed assets ​ ​ (7,948) ​ ​ (4,586) ​ ​ 445 ​

Gain on investments in other companies ​ ​ (11,380) ​ ​ — ​ ​ — ​

Impairment on assets held for sale ​ ​ 51,384 ​ ​ — ​ ​ — ​

Special items ​ — ​ 84,592 ​ — ​

Changes in operating assets and liabilities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Decrease (increase) in income tax receivable ​ 7,815 ​ (5,570) ​ 7,225 ​

Decrease (increase) in other current assets ​ (2,871) ​ (1,936) ​ 8,233 ​

Decrease in operating lease liabilities ​ ​ (76,812) ​ ​ (51,326) ​ ​ (65,557) ​

Increase (decrease) in deferred revenue ​ ​ 40,812 ​ ​ (6,832) ​ ​ 110,728 ​

Increase in unbilled revenue ​ ​ (11,491) ​ ​ (8,404) ​ ​ — ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

CASH FLOWS FROM INVESTING ACTIVITIES: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Acquisition of property and equipment: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Proceeds from the sale of property and equipment ​ 16,983 ​ 7,117 ​ 3,239 ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

CASH FLOWS FROM FINANCING ACTIVITIES: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Payment of debt issuance cost ​ ​ (2,178) ​ ​ (1,665) ​ ​ (4,130) ​

Net proceeds from issuance of common stock ​ 2,957 ​ 3,146 ​ 2,819 ​

Purchase of treasury stock ​ — ​ — ​ (20,000) ​

Payment of cash dividends ​ — ​ — ​ (13,059) ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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: ​ 2022 ​ 2021 ​ 2020

Non-cash investing and financing activities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Warrants issued to U.S. Treasury ​ $ — ​ $ 5,804 ​ $ 8,248 ​

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, 2022

(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, 2022, 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 1,620 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. As of December 31, 2022, the Company had 625 total aircraft in its fleet, including 517 aircraft in scheduled service or under contract under its code-share agreements, summarized as follows:

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Alaska 42 ​ — ​ — ​ — ​ 42

Aircraft in scheduled service or under contract ​ 236 ​ 41 ​ 104 ​ 136 ​ 517

Leased to third parties — ​ 5 ​ 35 ​ — ​ 40

*As of December 31, 2022, other aircraft included: supplemental spare aircraft supporting the Company’s code-share agreements that may be used in future code-share or leasing arrangements, aircraft transitioning between code-share agreements with the Company’s major airline partners, aircraft held for sale or aircraft that are scheduled to be disassembled for use as spare parts.

For the year ended December 31, 2022, approximately 42.6% of the Company’s aircraft in scheduled service was operated for United, approximately 30.0% was operated for Delta, approximately 19.3% was operated for American and approximately 8.1% 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, 2022, SkyWest Airlines operated as a Delta Connection carrier primarily in Salt Lake City, Detroit and Minneapolis, a United Express carrier primarily in Los Angeles, San Francisco, Denver, Houston, Chicago and the Pacific Northwest, 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 Bombardier: CRJ900s, CRJ700s and CRJ200s, and E175s manufactured by Embraer. The CRJ700, CRJ900 and E175 aircraft have a dual-class seat configuration typically configured with 65 to 76 seats. The CRJ200 is a single-class 50-seat aircraft.

Basis of Presentation

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

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, 2022, through the filing date of the Company’s annual report with the U.S. Securities and Exchange Commission.

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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, 2022 and 2021.

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 depreciation reported as a component of accumulated other comprehensive income (loss) 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, 2022 and 2021 was as follows (in thousands):

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ Gross unrealized ​ Gross unrealized ​ ​ ​ ​

Marketable securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ ​ ​ ​ Gross unrealized ​ ​ Gross unrealized ​ ​ ​ ​

Marketable securities: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

Bond and bond funds ​ $ 54,673 ​ $ — ​ $ — ​ $ 54,673 ​

Total marketable securities ​ $ 601,989 ​ $ — ​ $ — ​ $ 601,989 ​

As of December 31, 2022 and 2021, the Company had classified $944.2 million and $602.0 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, fuel and supplies and are valued at cost (FIFO basis) less an allowance for obsolescence based on historical results, 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 and salvage values. The inventory allowance as of December 31, 2022 and 2021, was $24.2 million and $23.0 million, respectively.

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 method as follows:

​​​ ​

Assets ​ Depreciable Life ​ Current Residual Value

Aircraft, rotable spares, and spare engines ​ up to 22 years up to 20 %

Ground equipment ​ up to 10 years 0 %

Office equipment ​ up to 7 years ​ 0 %

Leasehold improvements ​ Shorter of 15 years or lease term 0 %

Buildings ​ 20 - 39.5 years 0 %

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Impairment of Long-Lived Assets

As of December 31, 2022, the Company had approximately $5.5 billion of property and equipment, net. In accounting for these long-lived assets, the Company makes 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. On a periodic basis, the Company evaluates whether impairment indicators are present. When considering whether or not impairment of long-lived assets exists, the Company groups 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 aircraft type level.

During 2022, the Company committed to a plan to sell 14 CRJ700 aircraft, resulting in an impairment on the assets held for sale of $51.4 million. See Note 9, “Assets Held for Sale” for more information on the assets held for sale.

During 2021, the Company recorded an impairment charge of $84.6 million to write-down certain CRJ900 aircraft to their estimated fair value. See Note 10, “Special Items” for more information on the CRJ900 impairment.

Capitalized Interest

Interest is capitalized on aircraft purchase deposits as a portion of the cost of the asset and is depreciated over the estimated useful life of the asset. During the years ended December 31, 2022 and 2021, the Company capitalized interest costs of approximately $1.9 million, and during the year ended December 31, 2020, the Company capitalized interest costs of approximately $1.7 million.

Maintenance

The Company operates under a U.S. Federal Aviation Administration approved continuous inspection and maintenance program. The Company uses the direct expense method of accounting for its regional jet engine overhauls. The Company has engine services agreements with third-party vendors to provide long-term engine services covering the scheduled and unscheduled repairs for most of its aircraft. Under the terms of the agreements, the Company pays a fixed dollar amount per engine hour flown on a monthly basis and the third-party vendors will assume the responsibility to repair the engines at no additional cost to the Company, subject to certain specified exclusions. Maintenance costs under these contracts are recognized when the engine hour is flown pursuant to the terms of each contract.

The costs of maintenance for airframe and avionics components, landing gear and other recurring maintenance are expensed as incurred. In 2020, the Company wrote-off $3.7 million of long-lived maintenance assets at maintenance locations the Company vacated during the year as a maintenance expense. There was not a similar expense in 2022 and 2021.

Flying Agreements and Airport Customer Service and Other Revenues

The Company recognizes revenue under its flying agreements and under its lease, airport services and other service agreements when the service is provided under the applicable agreement. Under the Company’s capacity purchase agreements with United, Delta, American and Alaska (each, a “major airline partner”), the major airline partner generally pays the Company a fixed-fee for each departure, flight hour (measured from takeoff to landing, excluding taxi time) or block hour (measured from takeoff to landing, including taxi time) incurred, and an amount per aircraft in service each month with additional incentives based on flight completion and on-time performance. The major airline partner also directly pays for or reimburses the Company for certain direct expenses incurred under the capacity purchase agreement, such as fuel, airport landing fees and airport rents. Under the capacity purchase agreements, the Company’s performance obligation is met when each flight is completed, measured in completed block hours, and is reflected in flying agreements revenue. The transaction price for the capacity purchase agreements is determined from the fixed-fee consideration, incentive consideration and directly reimbursed expenses earned as flights are completed over the agreement term. For the years ended December 31, 2022, 2021 and 2020, capacity purchase arrangements represented approximately 88.0%, 84.3% and 87.0% of the Company’s flying agreements revenue, respectively.

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Under the Company’s prorate arrangements (also referred to as a “prorate” or “revenue-sharing” agreement), the major airline partner and the Company negotiate a passenger fare proration formula, pursuant to which the Company receives a percentage of the ticket revenues for those passengers traveling for one portion of their trip on a Company airline and the other portion of their trip on the major airline partner. Under the Company’s prorate flying agreements, the performance obligation is met and revenue is recognized when each flight is completed based upon the portion of the prorate passenger fare the Company determines that it will receive for each completed flight. The transaction price for the prorate agreements is determined from the proration formula derived from each passenger ticket amount on each completed flight over the agreement term. For the years ended December 31, 2022, 2021 and 2020, prorate flying agreements represented approximately 12.0%, 15.7%, and 13.0% of the Company’s flying agreements revenue, respectively.

The following table represents the Company’s flying agreements revenue by type for the years ended December 31, 2022, 2021 and 2020 (in thousands):

​ ​ ​ ​ ​ ​ ​ ​ ​ ​

​ ​ For the year ended December 31,

The Company allocates the total consideration received under its capacity purchase agreements between the lease and non-lease components based on stand-alone selling prices. A portion of the Company’s compensation under its capacity purchase agreements is designed to reimburse the Company for certain aircraft ownership costs. The consideration for aircraft ownership costs varies by agreement but is intended to cover either the Company’s aircraft principal and interest debt service costs, its aircraft depreciation and interest expense or its aircraft lease expense costs while the aircraft is under contract. The consideration received for the use of the aircraft under the Company’s capacity purchase agreements is accounted for as lease revenue, inasmuch as the agreements identify the “right of use” of a specific type and number of aircraft over a stated period of time. The lease revenue associated with the Company’s capacity purchase agreements is accounted for as an operating lease and is reflected as flying agreements revenue on the Company’s consolidated statements of comprehensive income (loss). During the year ended December 31, 2022, the Company amended its capacity purchase agreements with certain major airline partners that reduced certain contractual fixed monthly payments and increased certain contractual variable payments. Accordingly, the Company re-evaluated the allocation of the total consideration between the lease and non-lease components for the amended agreements, including the allocation of the consideration to the fixed and variable lease components. As a result of these amendments, the Company deferred recognizing lease revenue on $22.1 million of the allocated fixed monthly lease payments received during the year ended December 31, 2022, under the straight-line method. The Company has not separately stated aircraft rental income and aircraft rental expense in the consolidated statement of comprehensive income (loss) because the use of the aircraft is not a separate activity of the total service provided under the capacity purchase agreements.

A portion of the Company’s compensation under its capacity purchase agreements relates to operating the aircraft, identified as the non-lease component of the capacity purchase agreement. The Company recognizes revenue attributed to the non-lease component received as fixed-fees for each departure, flight hour or block hour on an as-completed basis for each reporting period. The Company recognizes 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 the Company anticipates completing over the remaining contract term. Due to the lower number of block hours completed during 2020 as a result of the COVID-19 pandemic compared to historical levels, the amount of cash collected for the fixed amount per aircraft for operating the aircraft did not align with revenue recognized based on block hours completed. Accordingly, the Company deferred recognizing revenue on fixed monthly payments the Company received for operating the aircraft under its capacity purchase

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agreements beginning in 2020. In 2022, the Company deferred $18.7 million of fixed monthly payments under certain agreements and recognized $11.5 million of unbilled revenue under certain other agreements, compared to recognizing previously deferred revenue of $6.8 million and $8.4 million of unbilled revenue in 2021.The Company’s deferred revenue and unbilled revenue balance is measured on a contract-by-contract basis and will be recognized based on the number of block hours completed during each period relative to the estimated number of block hours the Company anticipates completing over the remaining respective contract terms.

The Company’s total deferred revenue balance, as of December 31, 2022, was $144.7 million, including $5.2 million in other current liabilities and $139.5 million in other long-term liabilities. The Company’s unbilled revenue balance as of December 31, 2022, was $19.9 million, including $9.9 million in other current assets and $10.0 million in other long-term assets. The Company’s deferred revenue balance as of December 31, 2021, was $103.9 million, including $24.5 million in other current liabilities and $79.4 million in other long-term liabilities. The Company’s unbilled revenue balance as of December 31, 2021, of $8.4 million was included in other long-term assets.

The Company’s capacity purchase and prorate agreements include weekly provisional cash payments from the respective major airline partner based on a projected level of flying each month. The Company and each major airline partner subsequently reconcile these payments to the actual completed flight activity on a monthly or quarterly basis.

In the event a flying agreement includes a mid-term rate reset to adjust rates prospectively and the contractual rates under the Company’s flying agreements have not been finalized at quarterly or annual financial statement dates, the Company applies the variable constraint guidance under Topic 606, where the Company records revenue to the extent it believes that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

In several of the Company’s agreements, the Company is eligible to receive incentive compensation upon the achievement of certain performance criteria. The incentives are defined in the agreements and are measured and determined on a monthly, quarterly or semi-annual basis. At the end of each period during the term of an agreement, the Company calculates the incentives achieved during that period and recognizes revenue attributable to that agreement accordingly, subject to the variable constraint guidance under Topic 606.

The following summarizes the significant provisions of each code-share agreement the Company has with each major airline partner through SkyWest Airlines:

United Express Agreements

Agreement Aircraft type Number ofAircraft Term / Termination Dates

Total under United Express Agreements ​ ​ ​ 220 ​ ​

Delta Connection Agreements

Source: SEC EDGAR (public domain) · 10-K for the period ended 2022-12-31, filed 2023-02-16 · accession 0001558370-23-001442

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