Originally Posted by
Kmxu
How many people are on the WL? If the chance is not great, split the reservation, remove MUA, buyup to Premium Plus and request PP upgrade for your wife.
If the chance is great, UA may clear the upgrade list at T-36 h. Your question will become mute.
Good luck.
Sorry, need to edit original post. We were already upgraded. Just want to switch from miles to PP on one passenger. Thanks!