Route guide
Los Angeles → London
A popular but paperwork-precise route. Great Britain’s scheme adds a tapeworm treatment for dogs and an approved-route requirement, and most carriers move pets to London as cargo rather than in-cabin.
Leaving United States
Requirements differ sharply depending on where your dog has been in the previous six months. Cats face no federal rabies requirement, though individual states may add their own.
See full entry rulesEntering United Kingdom
Great Britain accepts pets under its own post-Brexit scheme. Dogs, cats and ferrets need an ISO microchip, a rabies vaccination and a GB health certificate, and dogs additionally need a tapeworm treatment recorded shortly before arrival.
Airlines on this route
Airline rules stack on top of the country rules above. Confirm both before you book.
Your chronological checklist
Work backwards from your travel date. Start the earliest step first — some cannot be rushed.
- 1 Implant an ISO microchipFirst — every later record references it
- 2 Rabies vaccinationAfter the microchip, at least 21 days before travel
- 3 Health certificate & endorsementClose to travel — often within a 10-day window
- 4 Book the flight & confirm the pet slotCabin and hold spots are capped per flight
- 5 Travel dayCarry the originals plus copies of every document