My friend has a flight from Lima (LIM) to London (LHR) via Mexico City (MEX), all on one ticket with Aeromexico.

I understand that Mexico, like the US, doesn't do sterile transit, so he'll have to pass Mexican immigration.

Will he also need to collect and re-check his checked bag, like in the US, or will it be loaded directly onto the second flight (like when transiting pretty much anywhere else)?

  • 2
    Are you sure about the lack of sterile transit? this suggests that bags will be checked straight through.
    – Peter M
    Nov 22, 2022 at 14:00
  • @PeterM I'm not sure, but it looks like the page you linked has the answer, at least for the baggage question. Thanks!
    – Joe Malt
    Nov 22, 2022 at 16:03
  • 1
    I've no experience with airports in Mexico, so I don't know if they differentiate between passengers and luggage during international transfers. Hence being a comment only. Other posters do have a lot of MEX experience.
    – Peter M
    Nov 22, 2022 at 16:05
  • 1
    Are you sure there’s no sterile transit? Timatic says “TWOV (Transit Without Visa): Passengers transiting through Mexico City (MEX) with a confirmed onward ticket for a flight to a third country within 24 hours. They must stay in the international transit area of the airport and have documents required for the next destination”. Looks like they only have sterile transit in MEX and not in other airports in the country but that they do have it there.
    – jcaron
    Nov 23, 2022 at 21:48

1 Answer 1


The Passenger FAQs page of the MEX website indicates in section 4b that bags are checked through:

If your connection is just part of an international trip, your baggage will be checked in for its final destination.

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