Originally Posted by
etiene
This is exactly what I think has happened, but having had to spend four hours on the phone with them getting the flights actually ticketed - and having specifically said "please make sure these are on the BA codes as originally booked" when it was resurrected - I'm not terribly happy at getting less than I've paid for TP and Avios wise... [Won't take me over any thresholds as I will hit gold before this trip, but outside chance it ends up being useful for my partner].
Why would you get fewer TPs on AA flight number vs BA codeshare?
The avios may be a little less as AA pay slightly less on cabin bonuses for some selling classes. However the avios difference isn't much, for example a BA silver in I class on LHR-JFK earns 6,916 if on a BA codeshare and 6,041 if on an AA flight number.