Southwest subsidiary AirTran Airways plans to introduce new flights from Baltimore Washington international to Aruba on 17 December.
AirTran is operating the new flights on Saturdays and Sundays, the carrier stated.
Schedules in the Innovata database show that no other airline operates nonstop flights on the pairing.
Southwest completed its acquisition of AirTran in May of this year, and since then the carriers have announced the end of service to four small AirTran cities -- Atlantic City, New Jersey; Moline, Illinois, and Asheville, North Carolina, on 6 January. AirTran's flights to Newport News, Virginia are scheduled to end 9 March.