Carol, have you asked airline directly what's happening on your flight? I'd be proactive to make sure I get on another flight and not left "in the dust" as AA has done to people before (self included) causing loss of vacation days because they put you on another flight another day.

RonDon--I cannot imagine even AA would be screwed up enough to NOT have a flight from Miami to SXM. They are still selling tickets, I guess, on the Max flight, and it is not very full. Of course I don't go until May. Haven't called them myself, as I'm sure they will tell me they don't know.

Agreed with RD, a call to a Supervisor might be a good idea?

It may well be a good idea but it also appears the schedule changes may not be totally implemented until sometime through Feb. I know this is frustrating and I have a flight booked on AA for early March that may or may not be impacted. It was not scheduled on a Max 8 but any juggling of schedules could impact just about any AA flight.

From the AA website:

Question: When will American run a schedule change and inform customers who were booked on a MAX from April 7 through June 3?
Answer: American had previously canceled service on the MAX through April 6. On Jan. 19, American will run a formal schedule change, and customers who were previously booked on a MAX through June 3 will see their reservation updated on aa.com. Additional refinements to our schedule through June 3 will also occur in February 2020.

I don't know, I read that to mean that they were going to dump everything through June 3, on January 19. I have been slammed this week, so really have not even thought about calling them.

One can read it a couple of ways.

A couple of the airline CEO's were just on TV, even early June/July does not sound like it will happen now.