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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.
Address customer service-related mail with this address: Southwest Airlines Attention: [Insert name of contact person here] P.O. Box 36647-1CR Dallas, TX 75235. Call 214-792-4415 to get contact information for the Investor Relations division.