I actually ran into this a few months ago when I booked through Expedia and wanted to upgrade to first class last minute. The website showed some options, but it wasn’t very clear if the upgrade was available on my specific flight. What worked best for me was calling 866-204-0803 — that number connected me directly to someone who could instantly check availability, cancel, or rebook without the hassle. They walked me through the steps, confirmed the price difference, and within minutes I had my seat changed. Honestly, it saved me a ton of time compared to fiddling with the app. If you’re trying to upgrade (even to first class), I’d say check the “Trips” section in your Expedia account first, then just call that number if you want the fastest, stress-free way to lock it in.
