"Your Regional Upgrade is restricted by fare class and may not be used on this part of your trip"
I have a number of PS flights (SFO-JFK-SFO) coming up. I booked them as pre-integration CO flight numbers, and so could not apply my pre-integration UA upgrades.
These were booked as fully refundable "B" fares, and are showing as "United Economy (B)" on the new web site.
However, when I try to upgrade, I get the following message:
"Your Regional Upgrade is restricted by fare class and may not be used on this part of your trip"
I can still upgrade using Systemwides or 10k miles. This seems like a glitch... Anybody else having this issue?