Southwest Airlines provides several convenient options for passengers to change their flights. You can easily modify your reservation online through the official Southwest website or the user-friendly mobile app. The online platform allows you to view available flights, select new travel dates, and make changes to your itinerary effortlessly. If you prefer direct assistance, Southwest's customer service team is available 24/7 to help you with your Southwest flight change requests. Additionally, you can also visit a Southwest ticket counter at the airport for in-person assistance.

For passengers who find themselves at the airport earlier than expected or have urgent changes to their travel plans, Southwest Airlines offers a same-day standby option. This allows you to request to fly standby on an earlier flight on your scheduled day of departure. The same-day standby option is available at no additional charge, subject to seat availability. It provides an added level of flexibility for those seeking to reach their destination sooner or rearrange their travel schedule.