Originally Posted by GoingAway
If you have the appropriate fare class on your ticket, you can request the upgrade with miles prior to departure, and hopefully have it confirmed early.
Yes, I know this... but given that UA doesn't care if I've paid for W class or full Y when it offers me the $550 deal (often on flights which officially have no award upgrade space), I was wondering why they can't offer on-the-day upgrades for miles as well as cash
After all, they are hard earned miles, and supposedly they are as good as cash...