Originally Posted by
Flyz
Interesting. Well, a few hours ago there were only two seats left in First, and all of a sudden there are five. Same upgrade price. I'll keep my eye on things and see what happens. Thanks.
Understand that the price may go
up as well as down.
Upgrade prices appear to be based roughly on inventory, which you can see if you activate Expert Mode and search for the flight in question. (There's a thread on Expert Mode on the board). United's domestic first fare classes are, in order from most to least expensive, J JN C D Z ZN P PN PZ IN I. The further down the list that you see the last non-zero value, the lower the upgrade offer is likely to be. (There are no guarantees). So, if you see J5 JN5 C5 D4 Z2 ZN2 P1 PN1 PZ1 IN1 I1, your upgrade offer probably won't get any lower. If it's J5 JN5 C5 D4 Z2 ZN0 P0 PN0 PZ0 IN0 I0, it might.