American and US Airways likely to see little competitive change in their overlap markets

American and US Airways are pressing full steam ahead to close their merger by 3Q2012, including stressing to US legislators that the combination will improve the overall health of the country's airline industry and make the merged airline a more viable competitor with legacy and low-cost carriers alike. With just a dozen routes that overlap, the carriers should not encounter any resistance from anti-trust authorities, and given that most the markets are hub to hub pairings, few changes are likely to be made to service patterns once the 18 month integration process is complete.

Some of the arguments made by American and US Airways over increasing competition from low-cost carriers and their potential service expansion into overlap markets might be overblown as those airlines in previous mergers have been selective in grabbing the low hanging fruit created by the tie-ups between Delta-Northwest, United-Continental and Southwest-AirTran.