I need to caveat that be prepared to fight with DL over miles not posting, especially if booked with flights operated by both AM and DL. Best to book tickets with all flights operated by AM.

I'm still dealing with DL over JFK-MEX segments not posted where it shows ticket refunded, something fishy going on between DL and AM.

If you do book them and all segments are operated by AM, be sure to ask check-in staff at first segment to manually enter DL numbers. My previous MCO-MEX-SCL flights got miles posted without any glitch/issue this way.