US Airways (Phoenix Sky Harbor) will relocate its flight operations hub from Pittsburgh International to Dallas/Fort Worth as part of its merger with American Airlines (AA, Dallas/Fort Worth). Over 600 employees working at the facility will be affected by the move, which will take up to 18 months to complete with some 'voluntary attrition' likely. Despite the loss, TravelMole says that US Airways' MRO department will remain in Pittsburgh for the foreseeable future.