Travelling with a French Bulldog: car, train, tunnel and ferry

A French Bulldog does not fly. The airline trade body's own guidance says transport of snub-nosed dogs "in hot season is not recommended" and asks for a container 10% larger than the sums give, and a dog that cannot cool itself in a cargo hold with nobody watching is not a risk this site will dress up. So every holiday is by car, train, tunnel or ferry, and this page is the rules and the kit for those, with the parts we could not verify labelled as such.

The car

The rule

Rule 57 of the Highway Code: "When in a vehicle make sure dogs or other animals are suitably restrained so they cannot distract you while you are driving or injure you, or themselves, if you stop quickly. A seat belt harness, pet carrier, dog cage or dog guard are ways of restraining animals in cars." It is a "should" rule rather than an offence in itself; an unrestrained dog becomes a police matter through the driving, not the dog.

What "crash-tested" means, and does not

No UK or EU law sets a crash standard for pet restraints, so the phrase on the box is the maker's own. One maker publishes what it did: Sleepypod says its harnesses are "Validated at 30 mph in accredited frontal sled tests. Certified by the Center for Pet Safety", and names the child-seat protocols it tested against, the American FMVSS 213 and the European equivalent. That is a claim with a method behind it, from a US charity's certification programme, and it covers dogs from about 8 kg upward, so an adult of this breed and not a young puppy, who rides in a secured carrier instead. The £8 to £14 car harnesses on a retailer's shelf carry no claim at all, and a booster seat with no stated weight limit is a bed with a strap. A harness sits across the chest and clips to the seat belt; nothing goes on the neck of a dog whose discs go there.

Heat

One UK heat-illness event in twenty happens in a vehicle, and those are the ones more often severe, because the dog cannot leave. A dog's temperature is still rising five minutes after exercise stops in a quarter of cases, so the car after a walk is the wrong place to cool one. Dogs Trust: "A dog could die in a hot car in just minutes. Winding a window down is not enough to help your dog stay cool." Air conditioning on, a sunshade on the rear window, water, and the summer kit in the boot.

Trains

National Rail's own page sets the rule for every operator: "Bring up to 2 pets, free of charge", "in both First Class and Standard Class", and "keep your dog on a lead or in a pet carrier" for "the whole trip, including at stations". Dogs are "not allowed in restaurant cars, except for assistance dogs", a sleeper carries "an additional charge for a heavy duty clean", and on escalators "they must be carried". GWR says the same in its own words: "up to two dogs, cats, or other small domestic animals, for free. Dogs must be on a lead, or in a rigid pet carrier", kept "off the seats". LNER's pets page returned an error on the day we read the others, so it is not quoted.

What this breed adds is the carriage temperature: a summer train with the air conditioning failed is a hot car with no door. Travel early, carry water and the cooling mat, and pick a carriage where you can see the guard.

The tunnel and the ferries

Le Shuttle

Eurotunnel's Le Shuttle is the crossing built for this breed, because the dog never leaves the car. Its support page answers the only question that matters in one line: "Your pet stays with you in your vehicle during the 35 minute crossing." The limit is "5 pets (cats/dogs/ferrets) per vehicle", and "All pets must be checked in at our Pet Reception", which asks you to "arrive at least 90 minutes before your booked departure". You need a microchip, an animal health certificate, a rabies vaccination, and for the Calais to Folkestone direction a tapeworm treatment given one to five days before. The fares page says pets travel "for a small flat fee" and does not give the figure, so neither do we.

Dover to Calais

The short crossing is ninety minutes, and on all three operators the default is that the dog stays in the car on a closed deck you cannot visit. P&O: "pets must stay in your vehicle if you are travelling on our Dover to Calais route", "unless you have booked our pet lounge (Dover to Calais only)", which is "from £12 each way" and "only available for dogs and customers travelling with a motor vehicle". DFDS: "you cannot stay in the vehicle during the sailing due to health and safety regulations", and the in-car fee is "£15 per pet, per way". Irish Ferries offers the car or a bookable Pet Den, "Dedicated indoor space for pets and owners", and asks you to "leave a window slightly open for ventilation" if the dog stays in the car.

Read DFDS's own summer advice beside its own car-deck rule: "In warmer weather, never leave pets alone in vehicles." That is the tension for this breed in one sentence. On a July crossing, the pet lounge or the tunnel is the answer, and the car deck is not.

The long crossings

Brittany Ferries carries pets "from just £35 to France and £50 to Spain each way", in "the comfort of your car or an onboard kennel", or "a pet-friendly cabin where your pet can stay with you". A dog in the car "is not allowed out of the vehicle during the sailing", and visits "are limited to one person per vehicle for a maximum of 15 minutes", at times the crew set. A kennelled dog "is only allowed in the kennel and exercise areas", and between them "must be muzzled and on a lead at all times", with fines for both. On a six-hour Caen crossing or an overnight to Spain, that makes the cabin the only option where the dog is with you, and the one we would book. DFDS's Newhaven to Dieppe route has three kennels at "£30 each per dog, per way" and pet cabins at "£20 per pet, per way" on top of the cabin.

The operator that names the risk

Stena Line, on the Irish Sea, says the thing the others do not. On Liverpool to Belfast, "given that certain breeds of dogs are more sensitive to heat/poor air circulation in vehicles, we recommend that you either book a pet-friendly cabin or a pet kennel". Its kennels are "heated", free on the short routes, and on Liverpool to Belfast "can be accessed throughout your journey". That is an operator naming the risk this page exists for, and it is the standard to hold the Channel operators to when you ring them.

Going abroad

From gov.uk: "You must get your pet microchipped before, or at the same time as, their rabies vaccination", then wait "21 full days after the initial vaccination". For the EU, "An AHC from your vet is required"; it is valid "10 days for EU entry", "6 months for onward travel within the EU" and "6 months for re-entry to Great Britain", and "A new certificate is needed for each separate trip." "Pet passports issued in England, Scotland, or Wales cannot be used for EU entry." Some destinations require a tapeworm treatment; the return to Great Britain does. Budget the certificate as a vet visit each trip.

Sickness

PDSA: "Anti-sickness medication can be a good short-term solution, but the best long-term fix is to help your dog relearn about car travel so they stop being afraid and feeling sick." And the reason not to wait: "If it's not managed properly, motion sickness tends to get worse over time, so if your dog is showing signs of a problem, it's best to speak to your vet before things get worse." A licensed anti-sickness medicine for dogs exists and a vet can prescribe it for a long drive; we could not reach the licensing compendium to quote it, so ask by name at the practice. An empty stomach for a few hours before the drive, a stop every hour or two, and a harness that lets the dog lie down do the rest.

What we read, and did not

On 13 September 2026 we read National Rail, GWR, Le Shuttle, P&O, DFDS, Irish Ferries, Brittany Ferries, Stena Line, British Airways and IAG Cargo, and every rule and price above is quoted from those pages on that date. Prices will move. Not read: LNER's pets page, which returned an error; KLM and easyJet; the breed list behind IAG Cargo's "Certain cat and dog breed restrictions apply"; the Le Shuttle pet fee figure; the medicines compendium. Sleepypod's certification is Sleepypod's claim, quoted as such.