A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,183
If it's the same flight, and you have a J ticket, it's free to switch. If there's a tax difference, you might have to pay that, but definitely no $90 change fee.