FILE - In a Monday, April 4, 2011 file photo, a Southwest 

FILE - In a Monday, April 4, 2011 file photo, a Southwest Airlines jetliner maneuvers around the tarmac at Phoenix Sky Harbor International Airport in Phoenix. Southwest Airlines says it made $98 million in the first quarter of 2012, helped by one-time gains on fuel-hedging contracts.   (AP Photos/The Arizona  Republic, Nick Oza, File) MARICOPA COUNTY OUT; MAGS OUT; NO SALES
Associated Press
FILE - In a Monday, April 4, 2011 file photo, a Southwest Airlines jetliner maneuvers around the tarmac at Phoenix Sky Harbor International Airport in Phoenix. Southwest Airlines says it made $98 million in the first quarter of 2012, helped by one-time gains on fuel-hedging contracts. (AP Photos/The Arizona Republic, Nick Oza, File) MARICOPA COUNTY OUT; MAGS OUT; NO SALES
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