Originally Posted by
jsloan
... Seriously: if you insist, you can use that screen to find flights that are immediately upgradeable, although personally I find Expert Mode is fine for that. But never, ever actually buy a flight from that screen: it's a complete disaster. The prices aren't always correct, the flow is confusing, and, to your point, it omits critical information.
A hint something odd is the price the economy fare to be upgrade ($1,462) is less than the regular economy fare ($1,622)
Red Flag
One of my rules is never,ever applied the upgrade as part of purchase -- too many bad things can happen