<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by shayes:
My question, as a Hong Kong-based AA Platinum who earns most mile on Cathay, is whether I will be able to book that HKG-SIN on an AA code and, here's the point, UPGRADE using my AA miles!?!
</font>
I would think you will only be able to book an AA coded HKG-SIN when it is part of a transpacific AA-coded flight with no stopovers. No stand-alone purchases. That's how AA's codeshares are with JL in Asia. But I may be wrong.