I flew DL/NW SEA-AMS on 1/15, and the miles have not posted yet.
I flew AA ORD-BOS on 1/30, and the miles have not posted yet.
On the same itinerary as ORD-BOS, I flew AA BOS-ORD on 2/2, and the miles posted on 2/9.
I think I'm going to e-mail in the boarding passes soon.