A FlyerTalk Posting Legend
Join Date: Sep 2012
Location: SFO
Programs: AC SE MM, BA Gold, SQ Silver, Bonvoy Tit LTG, Hyatt Glob, HH Diamond
Posts: 44,458
Just don't do anything until you know when you want to fly.
Fare difference will be waived. Historically they've letting you book within 30 days of original travel date.