Southwest Airlines has been adding state flag designs to its fleet for years. Here's a look at some of the carrier's designs.

Southwest Airlines introduced "Tennessee One" this week in Nashville, a specially painted Boeing 737, adorned with the Tennessee flag. It's the latest in a long line of special livery aircraft for ...

A dozen Southwest Airlines Co. (NYSE: LUV) aircraft feature state flag designs that wrap the entire aircraft. States such as Texas, Florida and California each have their own design. PHOTOS: See ...