Be very careful with Aeromexico on mileage runs. If you book a trip too far in advance, there's a 99% chance the itinerary will change an include a LONG stop over in Mexico City or another Mexican City like Guadalajara . By the time you pay for taxi's and hotels(especially if you travel to a mileage run city to make the flight), you're better off flying Delta on multiple trips or an English speaking country. Also, be careful, because some of the locations are in areas identified by the US State Department as "DO NO TRAVEL". Baja California was one area. Be careful, the Aeromexico flights on multi-legs have a habit of cancelling one leg and you're screwed or worse, if you do not speak Spanish, you'll be dropped at an airport at 2am when the airport closed at 11:00pm, they won't let you stay inside the Terminal(small) and there are NO taxis(or Lyfts or Uber-drug lords will not allow) due to the airport being closed and then you'll end up robbed trying to walk 10 kilometers with a suitcase at 2am and this is on a border town. Buyer Beware!