Pet Transport USA to UK: The 2026 Process

Moving a pet from the USA to Great Britain requires a USDA-endorsed health certificate, a correctly timed tapeworm treatment for dogs, and compliance with the UK's microchip-before-vaccination …

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6-10

Weeks lead time needed

Start this early minimum

Days quarantine on arrival

Moderate

Route complexity

Airlines on this route

Step by step

The United States to United Kingdom import process

Verify now. This is the most common compliance error.

Confirm microchip pre-dates rabies vaccination

Responsible: Vet to confirm

At least 21 days since primary course. Boosters must be in-date.

Confirm rabies vaccination is current and 21-day wait is complete

Responsible: Vet to verify

4-6 weeks ahead. Book early for large breeds.

Book cargo space on US to UK route

Responsible: Owner or agent

Within 10 days of travel. Must be USDA-accredited vet, not just any vet.

USDA-accredited vet examination and health certificate in DEFRA format

Responsible: USDA-accredited veterinarian

After vet signs. Allow 2-10 business days. VEHCS electronic submission is faster.

USDA APHIS endorsement of health certificate

Responsible: USDA APHIS Veterinary Services

24 to 120 hours before scheduled arrival time in Great Britain

For dogs: tapeworm treatment by vet within the required window

Responsible: Vet in USA

On travel date. Direct flights from major US hubs to Heathrow.

Travel to UK. Pet in cargo.

Responsible: Airline cargo

On arrival. Pet released after clearance.

APHA Border Inspection Post at Heathrow. Documents verified, microchip scanned.

Responsible: APHA

Requirements

United Kingdom entry requirements

Every item below must be in place before your pet can enter. We verify and track each one.

Microchip

ISO 11784/11785 standard. Must be implanted before the rabies vaccination or the vaccination is invalid for UK entry.

Rabies vaccination

Required. At least 21 days must have passed since the first vaccination in the primary course before entering Great Britain.

Rabies titre test

Not required. The USA is on the UK's list of approved countries.

Quarantine

Not required if documentation is correct. Penalty quarantine up to 120 days for non-compliant arrivals.

Import permit

No formal import permit. The Animal Health Certificate is the entry document.

Health certificate

USDA APHIS-endorsed health certificate issued within 10 days of travel, in a format meeting DEFRA requirements for Great Britain entry.

Leaving United States

Export requirements

Export permit

No formal US export permit required. USDA-endorsed health certificate serves as export documentation.

Health certificate

USDA APHIS-endorsed health certificate from a USDA-accredited veterinarian. Examination within 10 days of travel. Endorsement by USDA APHIS takes 2-10 business days; use VEHCS electronic system for fastest turnaround.

Costs

What this route typically costs

Cargo airline fee: $1,000 to $3,500 from a US hub to Heathrow depending on crate dimensions

USDA-accredited vet examination and health certificate: $200 to $500

USDA APHIS endorsement fee: $38 per certificate

Tapeworm treatment: $30 to $80

Pet transport agent fee: $400 to $1,500

IATA-compliant travel crate: $100 to $450

Total typical range: $1,800 to $6,000

Critical points

The tapeworm treatment for dogs has a strict 24 to 120 hour window before arrival in Great Britain. For a US East Coast to Heathrow flight (7-8 hours), the treatment is typically given 2-3 days before departure. Calculate the exact window from your scheduled UK arrival time, not departure time.

The health certificate must be USDA-endorsed, not just vet-signed. Find a USDA-accredited vet (not all vets are accredited) and allow 2-10 business days for the USDA APHIS endorsement step.

Microchip must pre-date the rabies vaccination. In the USA, many vets chip and vaccinate at the same visit; confirm the chip was done first.

United Airlines has suspended its PetSafe cargo program for the general public and does not accept cargo pets on UK-bound routes.

Cats do not require tapeworm treatment and face minimal documentation requirements at the UK border, but still require a USDA-endorsed health certificate for the airline cargo booking.

Airlines

Approved carriers on this route

Airline	Notes	Type
British Airways / IAG Cargo	No in-cabin pets. Cargo via IAG Cargo for imports to UK. PetAir UK handles UK-side arrival processing.	Cargo Only
Delta Air Lines	Multiple US hubs to Heathrow. JFK, Atlanta, Boston. Cargo pet service available.	Cargo Only
American Airlines	Dallas/Fort Worth, Chicago, New York to Heathrow. Cargo service. Seasonal temperature embargoes apply.	Cargo Only
Virgin Atlantic	JFK and other US cities to Heathrow. Verify current cargo pet acceptance at time of booking.	Cargo Only

The USDA APHIS endorsement step

For UK entry, your health certificate must be endorsed by USDA APHIS Veterinary Services, not just signed by your vet. The endorsement is the US government’s confirmation that the certificate is legitimate.

To get the endorsement: your pet is examined by a USDA-accredited veterinarian (not all vets hold this accreditation; check usda.gov to find an accredited vet near you). The vet completes the health certificate in the DEFRA-required format for Great Britain. You or your vet then submit the certificate to USDA APHIS for endorsement.

The fastest method is electronic submission through the Veterinary Export Health Certification System (VEHCS), which typically processes in 2-5 business days. Mail submission takes 5-10 business days. Given that the health certificate examination must happen within 10 days of travel, timing the endorsement correctly is important. Many owners schedule the vet examination 7-8 days before travel, submit immediately via VEHCS, and receive the endorsed certificate in time for departure.

Tapeworm treatment: calculating the window from New York or LA

Echinococcus tapeworm treatment is required for dogs entering Great Britain. The treatment must be given between 24 and 120 hours before the dog’s scheduled arrival time in Great Britain, recorded by a vet.

For a New York (JFK) to Heathrow flight arriving at 07:00 Thursday morning, the treatment window is Saturday 07:00 to Wednesday 07:00. Most owners have the treatment done Monday or Tuesday before the Thursday flight.

For Los Angeles (LAX) to Heathrow, the flight is around 10-11 hours. The same calculation applies from arrival time in the UK, not from departure time. Work backwards from UK arrival, not US departure.

The vet must record the date and time of treatment in the health certificate. APHA inspectors check this time as well as the date.

Non-standard US dog microchips

Some dogs in the USA have been microchipped with 15-digit chips (ISO standard, readable by UK scanners) and some with non-ISO chips (common in older US implants) that may not be readable by standard APHA scanners.

If your dog has a non-ISO chip, bring your own scanner to the UK border, and have the chip number clearly referenced in all documentation. UK rules allow entry if the owner brings a reader that can read the non-compliant chip. However, this creates additional scrutiny and slows the border process. If possible, have an ISO-standard chip implanted before travel (though it must pre-date the rabies vaccination, which complicates things if the old chip was implanted after the vaccination).

Most vets in the USA now use ISO chips, but if your dog was chipped 5 or more years ago, confirm the standard.

FAQ

Common questions about this route

No. The USA is on the UK’s list of approved countries (Part 1), meaning pets from the US do not require a titre test for Great Britain entry. The standard requirements are a microchip (before vaccination), a current rabies vaccination (21 days after primary course), and an endorsed health certificate. Compare this to pets from countries not on the UK’s approved list, which require a titre test followed by a 90-day waiting period.

The USDA APHIS website has a searchable database of accredited veterinarians. Search by state and zip code. Most major cities have multiple USDA-accredited vets. Some large veterinary practices have on-staff accredited vets; others will have a referral arrangement. If you use a specialist pet transport agent, they typically maintain a list of accredited vets in key US cities.

No. Tapeworm (echinococcus) treatment is required for dogs entering Great Britain only. Cats are exempt from this requirement. Your cat will still need a microchip, current rabies vaccination, and a USDA-endorsed health certificate for the airline cargo booking, but there is no tapeworm treatment requirement and the APHA border process for cats is minimal.

Not on direct US to UK routes. British Airways, Delta, American Airlines and Virgin Atlantic all operate the North Atlantic with wide-body aircraft on which pets are not permitted in the cabin. Pets must travel as checked cargo. Some owners travel with a pet in-cabin on a domestic US leg (e.g., Seattle to JFK on a smaller aircraft) and then transfer the pet to cargo for the transatlantic leg on a separate booking. This adds complexity; most people use cargo from departure to UK arrival.

DEFRA maintains a list of approved routes and entry points. Heathrow (LHR), Gatwick (LGW), Manchester (MAN), and Edinburgh (EDI) are approved airports for pet imports. Heathrow is the most common entry point for transatlantic routes. You cannot land at a non-approved port; the airline cargo will be routed to Heathrow regardless of your passenger ticket destination in most cases.

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