FILE - In this Nov. 22, 2011, file photo, Victoria Puerto checks 

FILE - In this Nov. 22, 2011, file photo, Victoria Puerto checks her flight information and tickets near flight status boards at the Miami International Airport in Miami. Airlines are slowly, steadily recovering from their meltdown five years ago, when, under the strain of near-record consumer travel demand, their performance tanked. Industry performance for all four measurements was slightly better in 2011 compared with 2010, according to the report being released Monday, April 2, 2012. (AP Photo/J Pat Carter, File)
Associated Press
FILE - In this Nov. 22, 2011, file photo, Victoria Puerto checks her flight information and tickets near flight status boards at the Miami International Airport in Miami. Airlines are slowly, steadily recovering from their meltdown five years ago, when, under the strain of near-record consumer travel demand, their performance tanked. Industry performance for all four measurements was slightly better in 2011 compared with 2010, according to the report being released Monday, April 2, 2012. (AP Photo/J Pat Carter, File)
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