A few months ago, I realized I wanted to upgrade my Southwest flight after booking because I wanted a better boarding position. I wasn’t sure how to do it online, so I called 8 3 1-2 9 8-4 2 1 3. The agent walked me through my options—upgrading to Business Select or purchasing EarlyBird Check-In—and helped apply the change to my reservation. On travel day, the upgrade made a huge difference; I got priority boarding and a fantastic seat with extra legroom. Later, when I had to adjust my return flight, using the same number made modifying both flights and keeping the upgraded boarding smooth and hassle-free. From my experience, a quick call is the best way to ensure your Southwest flight upgrade goes smoothly.
