In the restaurant/ business area of the Mexico City airport, prior to going to the departures hall, is a fast food restaurant called Baguetelle Bistrot that offers a “free” WIFI connection. But in order to receive the password to use it you need to make a purchase. This restaurant is a little expensive (paid a $1.60 for a coffee), so to save a couple of dollars you could use one of the passwords below.
WIFI Password for Mexico City Airport
Write these codes down for future reference, you never know when you may be stuck up for a night in the Mexico City airport.