Originally Posted by
USPhilly
When I tried to use miles to upgrade from Y for my PHL-CDG flight the GP desk told me you can only use miles if your OW ticket is >$600. So if each way your ticket is > than $600 you can upgrade both with miles. If neither is than you can't, etc.

Yes I am aware of that. My round trip ticket is just $24 over the magic $1200 margin.

But so far all they tell me is there's nothing available. I figure they are probably still trying to sell those seats first.