It can happen to anyone: You book a Southwest flight, then days or weeks or months later, something comes up and you need to change it or need to know about Southwest Cancellation Policy When that happens, you’ll need to know the Southwest Flight Change rules so you can take the next best step.
Southwest Airlines no longer charges change fees for travel within the southwest States for most fare types, except for basic economy tickets. Check the rules and review the change you want to make. Ex. Southwest Airlines Name Change or any other change
https://aviationrepublic.com/blog/southwest-airlines-flight-cancellation-policy/
https://aviationrepublic.com/blog/southwest-flight-change-policy/
https://aviationrepublic.com/blog/southwest-airlines-name-correction/