You are to go to immigration FIRST, then to the counter to get your flight.

Interesting. I tried to do that once and migración told me to go to the airline first, so I have done it that way ever since and no one has ever told me otherwise.

In DF one must check in with the airline before going to migración. At MEX, the migración kiosk is inside the secure area. To get into the secure area one must have their boarding pass and have already left any checked baggage with the airline.

Clearly at MEX it would not even be possible to go migración before going to the airline’s counter.

I’m at the airport now.

I checked in with the airline and got my boarding pass.

I went to migración and did my sign out. They gave me the confirmation for the airline.

I had the choice of taking it to the airline counter or giving it to the airline when I was in the seguiré area.

I returned it to the airline counter. I figured that the less time it was in my hands, the less time during which I might lose it.

You are to go to immigration FIRST, then to the counter to get your flight.

I checked in with the airline and got my boarding pass.

I went to migración and did my sign out. They gave me the confirmation for the airline.

I had the choice of taking it to the airline counter or giving it to the airline when I was in the seguiré area.

I returned it to the airline counter. I figured that the less time it was in my hands, the less time during which I might lose it.

Just wondering as a 10 year Permanent Resident why you all have to do this.

Interesting.

I sometimes depart Mexico from Zihuatanejo and sometimes from Terminal 2 in DF. In both places I have to register my departure. In ZIH it is in the little office. In MEX it is at a kiosk.