Sorry for the uber noob question, but I've done a search and found conflicting answers:
Some people have posted that ANY paid intnl. fare can be upgraded with an EXP systemwide. Yet I've seen other posts in Mileage Run, for example, which say a Q fare to LatAm cannot be upgraded.
So, which is right?
EDITED: Oops, nevermind. I guess I didn't search well enough. Found my answer:
Upgrades are only valid on individual published-fare tickets. Upgrades are not applicable to AAdvantage travel awards; any free ticket; tickets booked in I or O Class; fares booked in Q between North America and Asia, Europe, India or South America; military or other government fares; opaque fares; infant tickets (including INF50 fares) or purchased extra seats.