Originally Posted by
bsdstone
Where would you find this information? I am currently booked ORD-->ATH in September and am looking to use Plus Points to get to Polaris if possible. Trying to determine if there will be enough seats available for 2 upgrades, or if I should STW and take two Premium economy seats.
For looking up current fare bucket availability, activate Expert Mode by going to View My United > Settings > Special Preferences & Settings > Enable Expert Mode. Then look up the flight as if you are purchasing the flight - look for PZ (most likely 0).
StW search via Advanced Search function, choosing PlusPoints as upgrade function to see availability.