Originally Posted by
Gardyloo
That said, IMO the value of AA Plat for mileage accumulation is high enough that I would do what I suggested earlier. Have AA reissue the ticket after a minor route adjustment, which will then allow them to replace the CX code on the relevant flight with their own. $125 for the reissue fee is worth it in terms of miles obtained later.
That would be the way to make sure it's going to work. This way, you show up with a ticket that says it's for a specific AA flight on the date and time that matches the reservation.