The union said it's the first meeting between its board and Horton since he became CEO on the eve of the airline's bankruptcy filing in November 2011.
Many analysts expect American and US Airways to merge, and so do some executives at other airlines. Speaking to an investor conference on Wednesday, Delta Air Lines Inc. CEO Richard Anderson said he expects a merger shortly that will leave just four major U.S. airlines.
Anderson, whose company bought Northwest Airlines in 2008, said that as the recent United-Continental and Southwest-AirTran combinations gain more traction — and if joined by an American-US Airways merger — there will be a "a more rational, more stable and more durable industry landscape, which is going to be good for all of us including Delta."
Consumer advocates worry that airline mergers are reducing competition and leading to higher fares.