- visit www.southwest.com and log in
- Enter the name of the traveller or your booking number.
- To make modifications, select the Southwest flight ticket.
- Now select Change flight from the menu.
- Change the date, the flight, or the location, then click "Submit".
- Now pay the "Change flight charge" for Southwest Airlines ( If applicable).
- Download the updated Southwest airline ticket that you just received through email.
Read also : Finnair Airlines change flight | United Airlines change flight