During your Flight
Your airline will normally pass out an immigration form to each passenger and a customs form for each family. Fill these forms out while on the flight to save time once you arrive. Bring a pen in your carry-on to fill out these forms. Bring extra pens to make friends during your flight...
After arrival, you will go first thru Mexican immigration. Wait in line for your turn, then present your passport and immigration form to the immigration officer. He will look over your paperwork and then stamp and return your passport along with the bottom of your immigration form. This is your tourist travel visa. MAKE SURE YOU KEEP IT WITH YOUR PASSPORT. You will need both your passport and your tourist travel visa when you leave the country.
Once you leave immigration you will pick up your luggage and the proceed thru Mexican customs. Place your luggage on the X-Ray machine belt and then present your customs declaration form to the customs officer. He will look over your customs form and then you will push the button on an upright column. Green and you walk thru, Red and your luggage will be opened and inspected by the customs official(s.)
Exiting the Airport
After clearing customs you will go thru a large set of sliding glass doors. In the corridor leading to the airport exit you will likely encounter time share and tour salesmen or others trying to convince you that they are your transfer service or ask to see your passport or other documentation. You will be told that your transfer service is not available or that they are your transfer service or anything else to try to persuade you to do business with them.
WALK PAST THESE SALESPEOPLE AND EXIT THE AIRPORT.
Legitimate company representatives will be waiting outside the airport in the meeting area.