Originally Posted by
family friend
How far in advance are confirmed upgrades available via mileage?
Advance confirmed upgrade rewards are given out based on availability. If no availability exists at the time of request, you will be placed on the waitlist, and will receive the upgrade as soon as a space opens up. On the waitlist itself, you will be prioritized above regular elites waiting for automatic upgrades (EUAs), but below those elites who are on upgrade rewards like yourself.