Manage reservations for Southwest Airlines Manage Booking with Southwest Airlines There are no fees for modifying your Southwest reservation if your flight is delayed or cancelled (a possible price difference may apply). You can do this online or over the phone.
Make sure you make your return trip at the appropriate hour. View/Share Your Itinerary will receive the information when you check your flight details, print your trip documents, and mail them. Additionally, you can check in, upgrade, or print a new boarding pass. Customers can select a flight that departs on the same day when they purchase the Business Select or Anytime prices. It could be necessary to pay the applicable taxes and fees.