Mileage Upgrades on Virgin Atlantic
I've searched the world wide interwebs and can't seem to find a straight answer, so hoping the wizards of FT can help me here...
Looking to book a flight to LHR next month and one of the legs could be on Virgin Atlantic metal. Am I able to use Delta miles to upgrade that leg?
Realize I need an eligible fare and all, but hoping to get a clear answer.
Thanks!