Topic - Mesa Airlines

==Airline operations==Mesa Airlines operates as:*US Airways Express is a mainline airline marketing sub-brand using a separately liveried fleet of CRJ900 aircraft under a revenue-guarantee code sharing agreement. Its hubs are in Phoenix and Charlotte.*United Express is a mainline airline marketing sub-brand using a separately liveried fleet of Bombardier CRJ700 aircraft under a revenue-guarantee code sharing agreement. Its hubs are Washington Dulles and Chicago O'Hare.*go! is a brand using a separately liveried fleet of Bombardier CRJ200 aircraft from its hub in Honolulu. - Source: Wikipedia