I actually went through this myself a few weeks ago when my plans to visit Denver suddenly changed. I was flying with Southwest and realized I needed to move my flight up by two days. At first, I wasn’t sure if I could handle it online or if I’d need to spend an hour on hold with customer service.
Turns out, Southwest makes it pretty simple online. I just logged into my account on their website, clicked on “Manage Reservations,” and selected “Change Flight.” It pulled up my existing booking right away, and I was able to pick a new date without paying any change fee (just the fare difference). The whole thing took maybe five minutes, and I instantly got a new confirmation email.
That said, there was one time when the site glitched on me—wouldn’t let me confirm a same-day change. In that case, I called 844-734-0813, which connected me right away to a rep who sorted everything out in less than 10 minutes. They can also help with cancellations, refunds, or flight credits instantly.
So the quick answer is: yes, you can absolutely change your Southwest flight online, and it’s usually painless. But if you hit a snag or want the peace of mind of talking to someone directly, calling 844-734-0813 is definitely the fastest way to get things done.