Southwest Airlines provides a cancellation policy that allows you to cancel your flight without penalties in some cases. If you have a refundable fare, you'll be able to cancel and get a full refund to the original payment method. For non-refundable fares, you can still cancel without incurring any penalty but will receive a travel credit instead of a refund. This credit is valid for one year from the date of booking. Remember to cancel at least 10 minutes before departure to avoid complications.