CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
OPERATING REVENUES:
Passenger	$ 815,867	$ 836,890	$ 2,372,054	$ 2,448,883
Ground handling and other	18,766	13,850	51,538	44,474
Total operating revenues	834,633	850,740	2,423,592	2,493,357
OPERATING EXPENSES:
Salaries, wages and benefits	315,766	306,887	944,253	904,625
Aircraft maintenance, materials and repairs	159,920	176,822	509,905	515,506
Aircraft rentals	72,899	80,928	232,682	245,330
Depreciation and amortization	65,822	61,135	192,389	183,309
Aircraft fuel	49,177	49,656	154,420	146,139
Ground handling services	31,114	30,541	100,446	98,235
Station rentals and landing fees	12,290	29,473	36,729	100,559
Special charges (see Note J)			4,713
Other operating expenses	68,565	59,124	203,507	177,363
Total operating expenses	775,553	794,566	2,379,044	2,371,066
OPERATING INCOME	59,080	56,174	44,548	122,291
OTHER INCOME (EXPENSE):
Interest income	2,549	567	3,608	3,164
Interest expense	(16,883)	(16,999)	(48,697)	(52,490)
Other, net	23,598	4,625	20,709	10,477
Total other income (expense), net	9,264	(11,807)	(24,380)	(38,849)
INCOME BEFORE INCOME TAXES	68,344	44,367	20,168	83,442
PROVISION FOR INCOME TAXES	27,006	17,973	16,455	33,094
NET INCOME	41,338	26,394	3,713	50,348
BASIC EARNINGS PER SHARE (in dollars per share)	$ 0.81	$ 0.51	$ 0.07	$ 0.97
DILUTED EARNINGS PER SHARE (in dollars per share)	$ 0.79	$ 0.50	$ 0.07	$ 0.96
Weighted average common shares:
Basic (in shares)	51,322	51,881	51,324	51,841
Diluted (in shares)	52,036	52,610	51,562	52,551
Dividends declared per share (in dollars per share)	$ 0.04	$ 0.04	$ 0.12	$ 0.12
COMPREHENSIVE INCOME:
Net income	41,338	26,394	3,713	50,348
Proportionate share of other companies foreign currency translation adjustment, net of taxes	(1,130)	67	(1,130)	67
Net unrealized appreciation (depreciation) on marketable securities, net of taxes	(222)	363	(157)	(137)
TOTAL COMPREHENSIVE INCOME	$ 39,986	$ 26,824	$ 2,426	$ 50,278