Originally Posted by
The Mileage Millionaire
Or is the "Z" class required by COPA for applying its upgrades something different, like United's "PZ" fare class (upgrade inventory for its own PointsPlus system) or United's "ZN" (non-elite everyday award space under United's old award system)? I don't want to earn COPA status and then learn the hard way that it is all too good to be true.
To use a Copa cert:
You need Z on CM to upgrade
You need PZ on UA to upgrade
You can now upgrade pretty much any UA fare class with a Copa cert (so long as PZ exists)