Originally Posted by
SNA_Flyer
But the CX codeshare would also be valid for the challenge. It doesn't have to be an AA flight (unless something has recently changed).
AA codeshare of CX flight OK for challenge.
CX codeshare of AA flight not OK for challenge.
AA flight OK for challenge.
CX flight not OK for challenge.
From the AA wiki:
In previous years, points earned on flights marketed by partners would earn points. That is no longer the case. As of January 2007, only flights marketed by AA (with an AA flight number) will be eligible for earning points that count towards the completion of a challenge. You can still fly on non-AA metal flight operated by a partner, but you must make sure that you have booked an AA flight number for the flight.