Originally Posted by
metalblaze
With Amex IAP, if you play around with dates and destinations, you can end up getting KL/AF coded flights. But yes, majority seem to be DL coded.
In any event, with the new devaluation of MQD earnings with partner airlines since 2024, I am frequently finding the earning differences between DL vs. non-DL coded to be much smaller. YMMV.
I booked all AF flights through Amex IAP, but ended up on DL stock. $2400 each person after $250 discount.