Passangers traveling with 1 or 2 pets (dogs and/or cats), you must carry with you: Veterinarians certification: Proof of vaccination.
If traveling with more than 2 pets, you must carry with you:
Veterinarian certificate.
Proof of vaccination updated.
Payment's bill (form 5, SAT), with bank's stamp on it.
Pets must travel in the documented luggage compartment. It is recommended NOT to place pet's food inside carrying cages.
NOTICE: For further information when traveling with other type of pets please check SAGARPA-SENASICA , National Board of Fitozoological Inpection, located at the International Section F2, phone number: 5571-3124.
Unless your animal is small enough to fit under your seat and you can bring him or her in the cabin, the ASPCA recommends pet owners to not fly their animal,"
More information.