High Quality Content by WIKIPEDIA articles! Southern Airways began its life operating Douglas DC-3 aircraft on a route system which covered the south-central portion of the U.S. By 1968, Southern's route system extended from its most northerly stop at the Bristol-Kingsport-Johnson City (Tri-Cities regional) airport in Tennessee southward to its most southerly points at New Orleans and Jacksonville, Florida. The westward boundaries of Southern's route system were marked by Baton Rouge and Monroe, Louisiana. Routes extended eastward to the Atlantic Ocean at Myrtle Beach and Charleston, South Carolina.