Southwest Airlines Cancellation policy allows passengers to claim full refunds if cancelation is made 10 minutes prior to departure time. Know how to get full refunds from Southwest call +1-315-501-1144. As per Southwest cancellation policy 24 hours, you can cancel any Southwest ticket within 24 hours of booking, including a Wanna Get Away ticket, and get a full refund. You can cancel your ticket online at FareOsky.com, through the app, or by telephone. You can get a refund in the original payment method or convert your ticket value into Travel Funds to pay for future travel.