Southwest Airlines San Diego International Airport+1-888-839-0502 The main base of operations for Southwest Airlines San Diego International Airport Terminal 1 (SAN). With check-in booths, TSA security checkpoints, and easy access to gates, Terminal 1 provides Southwest travelers with a simplified travel experience. Southwest is well-known for its wide domestic route network, which links passengers from San Diego to many locations in the US. Facilities including restaurants, shops, and cozy seating places can be found in SAN's Terminal 1. visit us : https://www.terminalsme.com/southwest-airlines/southwest-airlines-san-terminal-san-diego-international-airport/