Originally Posted by
avm2806
No this is quite different - AA books you in their system (SABRE based if I am not wrong) and generates a PNR on that, there is a corresponding 1A (AMADEUS, WHAT CX USES) PNR for CX. CX/QF/BA/IB are all on amadeus from OW so they will have the same PNR. However a redemption booked using AA miles is still booked on the CX flight number - for example LAX-HKG would be CX 885, not AA 6075 which is AA codeshare for the same flight.
Codesharing is different as it allows for AA to share revenue on certain segments, all CX transpacs from USA-HKG are codeshared with an AA flight number. Strangely CX has not put its flight number on the new AA flight from DFW - This very different from one airline booking on another's flight.
As Guy Betsy has confirmed, a codeshare is not upgradable on AM. Similarily I couldn't use one of my SWU on an AA operated flight if it was book using a BA flight number.
Alright, I seems to understand it now. So in my situation, since my flight is with AA flight number, even if it is a codeshare flight with CX, CX cannot process the upgrade as it is not technically a CX ticket. However, if we redeemed a flight on AA website, we are in fact buying a CX ticket with our AA points, so since our flight number is on CX (like CX 883..), we will be able to process the upgrade with our asia miles. Is it correct?
P.S: I am very surprised by all those differences between different airline reward system. Guess I should be more careful next time. Sigh.. and I will need to sit in economy class in this full flight. By full, I mean there are not seats available for me to choose on CX website...
