エアトラン航空
On September 27, 2010, Southwest Airlines announced it would acquire AirTran Holdings, along with its subsidiary AirTran Airways. The companies operated separately for a period of time until the absorption of the owned and leased aircraft within AirTran's fleet was completed. On May 2, 2011, AirTran Holdings was purchased by Southwest Airlines. As a result, AirTran Airways and AirTran Holdings both became fully owned subsidiaries of Southwest Airlines.