If you wish to upgrade with Southwest Airlines, simply visit the website, log in to your registered account, select your upcoming flight under the manage booking section, and choose the “Upgrade” option if available. Follow the on-screen instructions and pay the applicable fare difference, and you’re set for an enhanced travel experience. If you face any difficulties, call the custome... https://airfaresupport.com/blog/how-do-i-upgrade-at-southwest/