Hello all, I have a quick question and I can't seem to get a straight anwser out of United. I am booked my Honeymoon using United points a while back. The trip is next month and some first class availability is starting to open up on some of these flights. So my question is can I use more miles to upgrade from my business tickets to first? My Itinerary is: 10/22 - DCA-ORD-HKG (UA / ANA) 11/6 - SIN-FRA-IAD (LH / UA) The inter-Asia flights are on a separate ticket.