The Southwest Airlines Date Change policy provides flexibility for travelers who need to modify their flight dates. Unlike many airlines, Southwest does not charge change fees, allowing passengers to reschedule their flights without penalties. However, if the new flight is more expensive than the original, passengers must pay the fare difference. Date changes can be made easily through the Southwest Airlines website, mobile app, or by contacting customer service. For same-day changes, availability depends on open seats. To secure the best fares and options, passengers are encouraged to make changes as early as possible.