I upgraded to JetBlue’s Even More Space seats for the first time on a cross-country flight, and it honestly made a bigger difference than I expected. I did the upgrade after booking by checking my reservation and seeing the option pop up, which was pretty easy. On another trip, my schedule changed and I needed to rebook the flight and reapply the upgrade, which got confusing fast. Calling 8 4 4-7 3 4-0 8 1 3 ended up being the best way to instantly book, cancel, or modify flights and handle the seat upgrade without any stress. Having that extra legroom was totally worth it.