(3) Long-term Debt

Long-term debt consisted of the following as of December 31, 2024 and 2023 (in thousands):

    

December 31,

    

December 31,

  

2024

2023

 

Notes payable to banks, due in quarterly installments, plus interest at 2.33% to 5.95% through 2036, secured by aircraft

$

2,055,330

$

2,302,578

Notes payable to banks, due in monthly or semi-annual installments, plus interest at 2.90% to 5.94% through 2032, secured by aircraft and engines

 

436,649

 

527,092

Notes payable to U.S. Government, interest due semi-annually at 1.00% through 2025 and based on SOFR plus 2.0% from 2025 through 2031, unsecured

 

200,640

 

200,640

Long-term debt

2,692,619

3,030,310

Current portion of long-term debt

 

(539,061)

 

(447,534)

Less long-term portion of unamortized debt issue cost, net

(16,772)

(20,593)

Long-term debt, net of current maturities and debt issue costs

$

2,136,786

$

2,562,183

Current portion of long-term debt

$

539,061

$

447,534

Less current portion of unamortized debt issue cost, net

(3,472)

(3,665)

Current portion of long-term debt, net of debt issue costs

$

535,589

$

443,869

As of December 31, 2024 and 2023, the Company had $2.7 billion and $3.0 billion, respectively, of total long-term debt. The average effective interest rate on the Company’s debt was approximately 4.2% and 4.1% at December 31, 2024 and 2023, respectively.

During 2024, the Company took delivery of five new E175 aircraft that the Company financed through $116.2 million of long-term debt. The debt associated with the five E175 aircraft has 12-year terms, is due in quarterly installments, and is secured by the E175 aircraft.

The aggregate amounts of principal maturities of long-term debt as of December 31, 2024 were as follows (in thousands):

2025

    

$

539,865

 

2026

 

517,924

2027

 

471,919

2028

 

300,945

2029

 

206,586

Thereafter

 

655,380

$

2,692,619

As of December 31, 2024 and 2023, SkyWest Airlines had a $100.0 million line of credit. The line of credit includes minimum liquidity and profitability covenants and is secured by certain assets. As of December 31, 2024 and 2023, SkyWest Airlines had no amounts outstanding under the line of credit facility. However, at December 31, 2024 and 2023, the Company had $24.9 million and $29.2 million, respectively, in letters of credit issued under the facility which reduced the amount available under the facility to $75.1 million and $70.8 million, respectively. The line of credit expires March 25, 2028 and has a variable interest rate of 3.5% plus the one month SOFR rate.

As of December 31, 2024 and 2023, the Company had $47.1 million and $49.1 million, respectively, in letters of credit and surety bonds outstanding with various banks and surety institutions.

The Company’s debt agreements are not traded on an active market and are recorded at carrying value on the Company’s consolidated balance sheet. The fair value of the Company’s long-term debt is estimated based on current rates offered to the Company for similar debt. The fair value of debt is estimated using inputs classified as Level 2 within the fair value hierarchy. The carrying value and fair value of the Company’s long-term debt as of December 31, 2024 and 2023, were as follows (in thousands):

December 31, 2024

December 31, 2023

Carrying value

$

2,692,619

$

3,030,310

Fair value

$

2,612,838

$

2,918,012

Historical Timeline

Fiscal YearFiled
2024Feb 13, 2025Showing above
2023Feb 15, 2024
2022Feb 16, 2023
2021Feb 17, 2022
2020Feb 22, 2021
2019Feb 18, 2020
2018Feb 21, 2019
2017Feb 26, 2018
2016Feb 27, 2017
2015Feb 26, 2016

About Debt Disclosures

Debt disclosures detail a company's borrowing structure — the types of instruments, interest rates, maturity schedule, and covenant restrictions that define its financial obligations and flexibility. This section is essential for assessing refinancing risk, interest rate exposure, and the margin of safety against financial distress.

Key signals: the maturity schedule reveals concentration risk — large maturities within 1-2 years during tight credit markets can force dilutive refinancing or asset sales. Compare the fair value of debt against carrying amount to gauge whether the market views the company's credit risk differently than the balance sheet suggests. Watch covenant compliance disclosures for tightening cushions, especially leverage and interest coverage ratios. Variable-rate debt exposure quantifies sensitivity to interest rate changes. Secured versus unsecured mix affects recovery rates and future borrowing capacity. Compare net debt-to-EBITDA against industry peers and covenant limits to assess financial health.