Southwest Airlines has extended its schedule to the end of October 2018. The carrier is adding five new routes in October according to Airline Route:
Denver – El Paso weekly effective October 7, 2018
Denver – Memphis daily effective October 3, 2018
Houston (Hobby) – Columbus, OH daily effective October 3, 2018
Houston (Hobby) – Louisville daily effective October 3, 2018
Oklahoma City – Nashville weekly effective October 7, 2018