Originally Posted by
diver858
From AS website for AM flights: Qualify for mileage accrual
Flights must fall within the eligible flight number range below and be marketed, operated, and ticketed by Aeromexico.
Eligible flight numbers - 1–1799, 2000–3799
Considering the flight numbers (MEX-HAV: AM451, HAV-MEX: AM452), it appears to be a pretty good bet.