Originally Posted by
flyerCO
If you goto the AM website it will tell you exactly what can check.
For domestic Mexico tickets, STE+ will get 1 bag as long as not booked in V class. Carryon is limited to one item under seat. (However I've never seen AM impose this)
FYI Mexico court ruling forced AM to give everyone up a carry on bag but not the total weight limit (including for business class / clase premier) is 10KG across all of your carry on bags. Very annoying.