<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by NM:
I don't believe any OW airline allows upgrades using another airline's FF points/miles. So as an AA FF member you may be able to upgrade the AA sectors, but not the other airlines. Not sure on the restrictions on code shares (ie using the AA codeshare of the QF flights over the Pacific). QF points can only be used for upgdeas on QF flight numbers on QF metal. I assume/expect other airlines work the same.</font>
miles from CX (Asia Miles) can be used to upgrade CX, AA, BA, EI flights, and for non-oneworld carriers, MU, KA and LX...i think for AA, EI, LX, you can even mix the upgrade award with CX flights (e.g. AA and CX flights upgraded on one single award)...