Mexico to UK is a long-haul route that is manageable with good preparation. Mexico is a listed country under UK APHA rules, which means no titre test and no quarantine for compliant arrivals. The main practical decisions are: using a direct …
Each step must be completed in a precise sequence. Start early. We manage every stage and deadline.
1
Confirm microchip is ISO standard and was implanted before the rabies vaccination
Responsible: Your vet
Verify now. Non-ISO chips (common in some Mexican vets) may not be read at UK border.
2
Confirm rabies vaccination is current and at least 21 days old
Responsible: Your vet
Allow 25+ days if vaccination needs updating.
3
Confirm UK health certificate format requirements for Mexico-origin pets
Responsible: Owner or agent
Check APHA website for the current approved certificate format for Mexican-origin pets.
4
Book cargo space on direct Heathrow route
Responsible: Owner or agent
6-8 weeks ahead. Direct flights preferred to avoid US transit complications.
5
SENASICA-authorised Mexican vet issues health certificate
Responsible: SENASICA-authorised official vet
Within 10 days of travel.
6
Dogs: tapeworm treatment 24-120 hours before UK arrival. Record in certificate.
Responsible: Vet
Timed from UK arrival. Mexico City to London is approximately 11-12 hours.
7
Travel to Great Britain. Certificate checked at border inspection post.
Responsible: Airline/owner
On travel date.
Requirements
What your pet needs to enter United Kingdom
Every item below must be in place before your pet can travel. We manage and verify each one.
Microchip
Required. ISO 11784/11785 standard. Must be implanted before the rabies vaccination.
Rabies vaccination
Required. At least 21 days must have passed since the primary vaccination course before entering Great Britain.
Rabies titre test
Not required. Mexico is classified as a listed country for UK APHA purposes, meaning no titre test is needed for compliant Mexican pets.
Quarantine
Not required for compliant arrivals from Mexico (listed country). Penalty quarantine of up to 4 months for non-compliant pets.
Import permit
Not required.
Health certificate
APHA-format health certificate (or equivalent) issued within 10 days of travel. The UK has specific certificate format requirements for Mexico.
Export permit (Mexico)
No formal export permit required for companion cats and dogs leaving Mexico.
Costs
What this route typically costs
Mexican health certificate: approximately MXN 1,500-4,000 (GBP 65-175)
Microchip (if needed): MXN 300-600 (GBP 13-26)
Airline cargo Mexico City to London Heathrow: GBP 800-2,500 depending on crate size (long-haul costs)
PetAir UK handling on UK arrival: GBP 200-600
Pet transport agent fee (if used): GBP 500-1,200
Total typical range: GBP 1,200 to GBP 4,000
Critical points to read before you book
Connecting through the USA adds significant complexity for dogs. If your flight route from Mexico City transits through a US airport, your dog must comply with CDC high-risk country dog import rules in the USA, even if the USA is not your final destination. A direct British Airways flight to Heathrow avoids this.
ISO microchip standard: Some Mexican vets implant chips that are not ISO 11784/11785 compatible. This chip will not be readable at UK border posts. Verify your pet's microchip standard before travel.
The UK has specific health certificate format requirements for pets from different countries. Mexico has a specific approved format. Verify this with APHA or a UK pet transport agent before the vet appointment.
Tapeworm treatment timing: for a Mexico City to London Heathrow flight of 11-12 hours, giving the praziquantel treatment 2-4 days before travel is typically within the 24-120 hour window from UK arrival.
Airlines
Carriers approved for this route
Not all airlines accept live animals on this route. We know which carriers to use and how to book.
BRITISH
British Airways
Direct London Heathrow to Mexico City (MEX). Pets as cargo via IAG Cargo. Direct flight approximately 11-12 hours.
Cargo Only
AEROMEXICO
Aeromexico
Mexico City to London via various hubs. Cargo service via Aeromexico Cargo. Often involves a connection.
Cargo Only
AMERICAN
American Airlines
Mexico City to London via US hubs (Dallas, Miami, Chicago). Connection through a US hub adds complexity with CDC dog import rules in the USA.
Cargo Only
Why the direct flight matters for dogs
Most airline options from Mexico to the UK involve a connection. Aeromexico typically routes via Mexico City to a European hub. American and Delta connect via US cities.
For dogs, any US transit creates a problem. Mexico is classified as a high-risk country for dog rabies under CDC rules. A dog that stops, even briefly, at a US airport during a connection must comply with the CDC dog import rules, which include documentation requirements and may require arriving at a CDC-designated airport. For a pet that is ultimately going to the UK, this is an unnecessary complication.
British Airways operates a direct Heathrow to Mexico City service. Using this route means your dog flies directly to the UK with no US connection. This is the cleanest path and the one most pet transport agents in Mexico recommend.
Microchip compatibility: worth checking in Mexico
ISO 11784/11785 standard microchips are universal and readable by all border scanners in the UK and EU. However, some microchips used in Mexico do not conform to this standard. If your vet implanted a non-ISO chip, it will not be readable at UK border control, and your pet could be refused entry.
Before any other preparation, ask your Mexican vet for the microchip number and confirm the standard. If it is not ISO 11784/11785, the microchip needs to be replaced with an ISO-compliant chip before the process begins. The new chip then needs to pre-date any vaccination that counts toward the UK entry requirements.
FAQ
Common questions about Mexico to United Kingdom pet transport
No, provided documentation is correct. Mexico is a listed country under APHA rules, which means no quarantine for compliant arrivals. Your pet needs a current health certificate in the format approved for Mexico, a valid ISO microchip implanted before the rabies vaccination, and a valid rabies vaccination (at least 21 days since primary vaccination). Dogs need tapeworm treatment recorded in the certificate.
Yes. Any US airport stop, including a connection, triggers US import requirements for dogs from Mexico. Mexico is a CDC high-risk country for dog rabies. If your route has a US connection, your dog must comply with the current CDC dog import rules for high-risk countries. Using a direct UK flight avoids this entirely.
You need a new ISO 11784/11785 microchip implanted before the process continues. The new chip must be implanted before any vaccination that will count toward UK entry requirements. The non-ISO chip is not readable at UK border posts and will result in your pet failing the documentation check.
British Airways operates a direct Mexico City to London Heathrow service and handles pet cargo via IAG Cargo. This is the preferred route for large dogs as it avoids any US connection and the associated CDC complications. Book the cargo space early, as the direct flight has limited holds and space fills, particularly in peak months.