FILE - In this Tuesday, Nov. 29, 2011, file photo, American Airline planes sit at a gate at Washington's Ronald Reagan National Airport.  Four key members of Congress said Friday, Nov. 22, 2013, that all airlines should be able to bid on gates and landing rights that American Airlines and US Airways will give up after their merger. (AP Photo/Susan Walsh)

Photo by: Susan Walsh

FILE - In this Tuesday, Nov. 29, 2011, file photo, American Airline planes sit at a gate at Washington's Ronald Reagan National Airport. Four key members of Congress said Friday, Nov. 22, 2013, that all airlines should be able to bid on gates and landing rights that American Airlines and US Airways will give up after their merger. (AP Photo/Susan Walsh)