Members of Southwest Airlines’ Rapid Rewards frequent flyer program and AirTran Airways’ A+ Rewards now can transfer their points between the two programs to redeemed those points for travel to nearly 100 destinations, including Mexico and the Caribbean. The two loyalty programs remain separate. To convert loyalty reward points, you have to be members of both programs.
Southwest's Rapid Rewards Members can convert their Rapid Rewards Points, active credits and active Awards/Certificates into A+ Rewards Credits for flights on AirTran. AirTran's A+ Rewards Members can convert their active A+ Rewards Credits into Rapid Rewards Credits for flights on Southwest Airlines.