DALLAS, Texas, Aug. 15 -- Southwest Airlines issued the following news release: * * * Tennessee One, Two, Three! New Southwest Service to Knoxville and Spring Break Schedule Available for Purchase Airline adding third airport in the Volunteer State, joining Memphis and Nashville. Southwest also grows routes in San Diego with new terminal opening soon. * DALLAS--Aug. 14, 2025--Southwest Airlines Co. (NYSE: LUV) is again growing its route map with service at Knoxville, Tennessee's McGhee Tyso  more