One of the most famous benefits of Southwest Airlines in 2026 is that there are zero change fees across all fare classes, including "Wanna Get Away." While you will never be charged a "penalty" for changing your plans, you are responsible for the fare difference between your original ticket and the new one. If the new flight is cheaper, Southwest will provide you with a "Flight Credit" (for standard fares) or a refund (for "Anytime" or "Business Select" fares) to use on future travel. If the new flight is more expensive, you simply pay the difference. This policy applies up until 10 minutes before your scheduled departure. In early 2026, Southwest also introduced a "Same-Day Standby" feature for all travelers, allowing you to list for an earlier flight on your day of travel for free, provided seats are available, making it the most flexible major carrier in the United States.