<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by SeattleFred:
In the examples you describe, what would you have happen if you purchased the upgradeable fare but the upgrade did not clear?</font>
Tough luck. That situation already exists today. If you're out of SWUs or non-1k and want to upgrade SFO-LHR with miles, for example, there may be a $600 non-upgradeable fare and a $900 upgradeable fare. If they can't clear the upgrade immediately, you have to buy the higher fare to get on the waitlist and it's a roll of the dice.