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Southwest Airlines Reservations Phone Number: 1-800-I-FLY-SWA (1-800-435-9792) Above mentioned number is Southwest Airlines customer service, Reservation, Information toll free number for passengers, Using this number you can able to Reserve your ticket from your home itself. Read also: Delta Airlines Customer Care.
1 by writing to our Refunds Department at the address below. 2  If you previously cancelled your reservation online at Southwest.com and did not request a refund at that time, you may submit a request: 3  by calling our Reservations Department at 1-800-435-9792. If you previously cancelled your reservation online at Southwest.com and did not request a refund at that time, you may submit a request: 2  by calling our Reservations Department at 1-800-435-9792. 3  by calling Customer Relations at the number below. 4  by writing to our Refunds Department at the address below.