I used to think changing a flight would be a total nightmare, but I had to move a trip to Dallas last minute and was pleasantly surprised. The best way to modify your booking is through the "My Trips" section on the American Airlines website or app.
I just entered my confirmation code, clicked "Change trip," and picked a new date. Since I had a Main Cabin ticket, they didn't charge me a change fee—I only had to pay the difference in the ticket price. Just a heads-up: if you’re in Basic Economy, they’re usually much stricter and might not allow changes at all!