Southwest Airlines and AirTran are now selling itineraries for flights on both airlines in a single purchase.
Dallas-based Southwest Airlines Co. said Monday that it's completed combining both reservations networks. Southwest bought AirTran in 2011 but is still operating it as a separate airline.
The combined itineraries will be available on flights starting April 14 from both airlines' websites and call centers. A passenger could, for example, buy a single ticket that would cover a Southwest flight that connects to an AirTran international flight.
The two began linking itineraries in a few markets in January. Southwest plans to eventually eliminate the AirTran brand and repaint all the planes in Southwest colors.