CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
OPERATING REVENUES:
Passenger	$ 919,690	$ 642,201	$ 1,764,166	$ 1,265,313
Ground handling and other	14,007	7,558	35,482	16,689
Total operating revenues	933,697	649,759	1,799,648	1,282,002
OPERATING EXPENSES:
Salaries, wages and benefits	290,126	173,716	576,273	352,278
Aircraft maintenance, materials and repairs	176,399	111,366	339,573	218,121
Aircraft fuel	161,408	85,513	288,149	159,027
Aircraft rentals	88,072	75,642	174,494	152,101
Depreciation and amortization	63,697	58,383	126,890	116,529
Station rentals and landing fees	42,322	30,551	84,948	59,436
Ground handling services	32,875	26,945	69,728	56,389
Merger and integration related costs	1,364		2,395
Other	58,394	38,355	117,932	76,411
Total operating expenses	914,657	600,471	1,780,382	1,190,292
OPERATING INCOME	19,040	49,288	19,266	91,710
OTHER INCOME (EXPENSE):
Interest income	2,114	4,142	4,080	8,112
Interest expense	(20,052)	(21,659)	(40,272)	(43,244)
Other, net	(2,859)	(1,131)	(3,365)	(1,385)
Total other expense, net	(20,797)	(18,648)	(39,557)	(36,517)
INCOME (LOSS) BEFORE INCOME TAXES	(1,757)	30,640	(20,291)	55,193
PROVISION (BENEFIT) FOR INCOME TAXES	(3,336)	11,985	(10,806)	21,522
NET INCOME (LOSS)	$ 1,579	$ 18,655	$ (9,485)	$ 33,671
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share)	$ 0.03	$ 0.33	$ (0.18)	$ 0.60
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share)	$ 0.03	$ 0.33	$ (0.18)	$ 0.59
Weighted average common shares:
Basic (in shares)	52,698	55,936	53,271	55,895
Diluted (in shares)	53,371	56,718	53,271	56,791
Dividends declared per share (in dollars per share)	$ 0.04	$ 0.04	$ 0.08	$ 0.08