Southwest Airlines has a flexible cancellation policy that allows passengers to make changes or cancel their flights with ease. Here are the key points of Southwest Airlines cancellation policy. Southwest does not charge change fees for altering or canceling a reservation. Refunds are issued in the form of travel funds or back to the original payment method, depending on the fare type and when the cancellation is made. Customers can cancel their flights up to 10 minutes before departure for a full refund. Passengers can manage their bookings and cancel flights online through the Southwest Airlines website or mobile app, or by contacting customer service at 1-844-296-4458 It's recommended to review the specific fare rules and policies associated with your booking for detailed information on cancellations and refunds.