Last updated on June 26th, 2019 at 10:16 amSouthwest Customer Service Phone Numbers Customer service: 1-800-I-FLY-SWA 1-800-435-9792 Southwest Reservations: (1844) 888 6255 Southwest Vacations: 1-800-243-8372 Articles Left at TSA Checkpoint: 1-888-269-9673 or tsa.gov New Hotel Reservations: 1-800-733-1137 Teletypewriter (TTY): 1-800-533-1305 Existing Hotel Reservations: 1-800-545-4489 Public Relations & Media Relations: 214-792-4847 Jackpot Deal Packages: 1-877-308-4216 Group Reservations: