Southwest Airlines (LUV) 8-KSouthwest Airlines Reports April Traffic

Filed: 6 May 11, 12:00am

Ex 99.1

CONTACT: Investor Relations (214) 792-4415

SOUTHWEST AIRLINES REPORTS APRIL TRAFFIC

DALLAS, TEXAS – May 6, 2011 -- Southwest Airlines Co. (NYSE: LUV) announced today that the Company flew 7.0 billion revenue passenger miles (RPMs) in April 2011, an 8.7 percent increase from the 6.5 billion RPMs flown in April 2010. Available seat miles (ASMs) increased 7.5 percent to 8.8 billion from the April 2010 level of 8.2 billion. The load factor for the month was 79.7 percent, compared to 78.8 percent for the same period last year. For April 2011, passenger revenue per ASM is estimated to have increased in the four to five percent range compared to April 2010.

For the first four months of 2011, Southwest flew 26.2 billion RPMs, compared to 23.6 billion RPMs flown for the same period in 2010, an increase of 11.0 percent. Available seat miles increased 8.1 percent to 33.3 billion from the 2010 level of 30.8 billion. The year-to-date load factor was 78.7 percent, compared to 76.7 percent for the same period last year.

This release, as well as past news releases on Southwest, is available online at southwest.com.

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SOUTHWEST AIRLINES CO.
PRELIMINARY COMPARATIVE TRAFFIC STATISTICS






	APRIL

	2011			2010			CHANGE


Revenue passengers carried		7,522,952			7,495,073			0.4	%

Enplaned passengers		9,223,678			8,911,492			3.5	%

Revenue passenger miles (000)		7,040,248			6,477,421			8.7	%

Available seat miles (000)		8,830,037			8,215,474			7.5	%

Load factor		79.7	%		78.8	%	0.9		pts.

Average length of haul		936			864			8.3	%

Trips flown		96,683			93,719			3.2	%




	YEAR-TO-DATE

		2011			2010		CHANGE


Revenue passengers carried		28,638,067			27,471,908			4.2	%

Enplaned passengers		34,822,796			32,605,956			6.8	%

Revenue passenger miles (000)		26,236,133			23,639,135			11.0	%

Available seat miles (000)		33,335,710			30,834,934			8.1	%

Load factor		78.7	%		76.7	%	2.0		pts.

Average length of haul		916			860			6.5	%

Trips flown		370,506			355,611			4.2	%

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