If you have an international flight arriving from Canada or the United States, you are most probably arriving in Terminal 3. If you have a flight coming from Europe or South America, you would most probably be arriving at Terminal 2 on the “International side”. If you have a domestic flight you’d be arriving at Terminal 2 in the “Domestic side”. If you are coming from anywhere else but have a connection in any place in Mexico with a domestic airline you’ll arrive at Terminal 2. There are just a couple of Domestic Airlines that arrive to Terminal 1. You can check our page of “Airlines to Cancun” and you’ll see which terminal they come in.