Accrued Liabilities

12 Months Ended

Dec. 31, 2021

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued Liabilities

Accrued liabilities included in other current liabilities as of December 31, 2021 and 2020 consist of the following:

	As of December 31,
	2021		2020
	(in thousands)
Salaries, wages and benefits	$	142,893	$	112,838
Airport obligations	85,772		68,677
Federal excise and other passenger taxes and fees payable	77,409		36,884
Fuel	55,103		11,704
Aircraft maintenance	39,178		27,466
Interest payable	24,526		37,202
Aircraft and facility lease obligations	23,049		67,374
Other	32,824		31,469
Other current liabilities	$	480,754	$	393,614