Originally Posted by SFOTRAVELER
I will be using United FF miles to upgrade a Air New Zealand ticket SFO-AKL from coach to business. I will have to buy the ticket, but at least I am re-earning the miles flown (13,000).
Sorry to be the bearer of bad news, but you cannot use UA miles to upgrade NZ. Check out this thread in the Star Alliance forum:
http://www.flyertalk.com/forum/showthread.php?t=329589