FILE - In this April 22, 2008 file photo, a Delta Air Lines McDonnell Douglas MD-88 takes off from Tampa International Airport in Tampa, Fla. Delta Air Lines Chief Financial Officer Hank Halter told investors at a conference in New York Wednesday, Dec. 9, 2009, that Delta's revenue per available seat mile likely will show growth at some point in the first half of 2010.
(AP Photo/Chris O'Meara, file)