Travelling with pets in the UK

Learn about travelling with pets in the UK. And why a little prep for your cat or dog goes a long way.

Published: 1 July 2026

Do dogs have to be restrained in cars?

Yes, under the Highway Code, dogs and other animals must be suitably restrained when travelling in a vehicle so they can’t distract the driver or injure themselves or others in a sudden stop.

While there’s no specific fine for having an unrestrained dog, driving with one could lead to a charge of driving without due care and attention, which carries a fine of up to £1,000 and penalty points on your licence.

Acceptable forms of restraint include:

  • A well-fitted dog harness attached to a seatbeltA well-fitted dog harness attached to a seatbelt
  • A secured travel crate or carrierA secured travel crate or carrier
  • A dog guard or boot barrier for larger vehiclesA dog guard or boot barrier for larger vehicles

What is the law for dogs in a car?

The law doesn’t specify a single approved restraint type, but it does require that dogs are secured safely.

There are other legal and practical considerations for dogs in cars. Under the Animal Welfare Act 2006, you must not cause unnecessary suffering to an animal, which means you are legally obliged to make sure your dog has access to fresh air, water on longer journeys, and is not left in dangerous conditions.

    Is it illegal to leave a dog in the car?

    It is not automatically illegal to leave a dog in a car, but it can quickly become a criminal offence if it causes suffering - particularly in warm weather.

    A dog in a hot car is one of the most serious risks pet owners face on holiday. Temperatures inside a parked car can rise from 22 to over 40 degrees Celsius in under an hour, even on a mild, cloudy day. Heatstroke in dogs can be fatal within minutes.

    If your dog is found to have suffered as a result of being left in a hot car, you could face prosecution, with penalties including an unlimited fine and up to five years in prison.

    For tips on keeping your dog or cat cool, see our guide - How to help your pet in hot weather.

      How do I keep my dog safe in the car on a longer journey?

      Dogs need regular breaks, fresh water, and a secure, comfortable space to travel safely on longer trips.

      On a long car journey, plan to stop at least every two hours. Let your dog stretch, go to the toilet, and drink water. Avoid feeding a large meal immediately before travel, as motion sickness is common in dogs.

      Keep the car well-ventilated, and never leave your dog in direct sunlight even with windows cracked. If your dog shows signs of anxiety or car sickness on journeys, speak to your vet before your trip - there are safe medications and training approaches that can help.

      Tips for safer car travel with dogs:

      • Use a crash-tested harness or crateUse a crash-tested harness or crate
      • Pack a travel water bowl and plenty of waterPack a travel water bowl and plenty of water
      • Bring familiar bedding to reduce anxietyBring familiar bedding to reduce anxiety
      • Never place dogs in the boot of a saloon without ventilationNever place dogs in the boot of a saloon without ventilation
      • Keep a list of emergency vet practices along your routeKeep a list of emergency vet practices along your route

      For more dog care tips, see our guide - Looking after dogs.

        Can dogs travel on trains in the UK?

        Yes - most UK train operators allow dogs on board for free, though rules vary between operators and on some services a ticket may be required.

        If you’re planning a holiday with your dog by rail, check the specific rules of the train operator you’re using before you travel. Generally, dogs must be kept on a lead at all times and must not occupy seats. On busier services, your dog may need to travel in the luggage area or at your feet.

        Cats are less commonly taken on trains, but are allowed in a secure, closed carrier on most services. It’s worth calling ahead to check policies, particularly if you’re travelling at busy times.

          What should I know about cats and travel?

          Most cats find travel stressful, so preparation and a secure carrier are essential to keeping them calm and safe.

          Unlike dogs, cats are rarely keen on travelling. Cats in cars should always travel in a hard or soft carrier that is secured with a seatbelt or wedged safely so it can’t move if you brake. A loose carrier can become a dangerous object in an accident.

          Before your trip, help your cat get used to the carrier by leaving it open at home with familiar bedding inside. Keep the car cool and avoid talking loudly or playing music at high volume.

          For more dog care tips, see our guide - Looking after cats.

            Is there cat-friendly holiday accommodation in the UK?

            Yes - cat-friendly holidays in the UK are growing in popularity, with many self-catering cottages and lodges now welcoming cats as well as dogs.

            When booking, always confirm with the accommodation that cats are allowed - not all ‘pet-friendly’ properties mean cat-friendly. Look for enclosed gardens or outdoor spaces if your cat is used to going outside, and check that the property is secure enough to prevent escapes. In an unfamiliar environment, even an outdoor cat should be kept inside for the first 24-48 hours.

            Bring your cat’s own food, water bowls, bedding, and litter tray. Familiar scents reduce stress and make it easier for your cat to settle in.

              What should I pack when travelling with a dog?

              A well-packed bag for your dog covers health, safety, and comfort, and can save you a lot of stress if something unexpected happens.

              When thinking about how to travel with a dog, preparation is everything. Key items to pack include:

              • Your dog’s vaccination records and any medication they take regularlyYour dog’s vaccination records and any medication they take regularly
              • Details of your pet insurance policy and the 24-hour vet helpline numberDetails of your pet insurance policy and the 24-hour vet helpline number
              • Food, treats, and a portable water bowlFood, treats, and a portable water bowl
              • Lead, harness, and collar with up-to-date ID tag (legally required in England)Lead, harness, and collar with up-to-date ID tag (legally required in England)
              • Poo bags, towels, and a pet first aid kitPoo bags, towels, and a pet first aid kit
              • Your dog’s bed or a familiar blanketYour dog’s bed or a familiar blanket
              • Contact details for a vet near your holiday destinationContact details for a vet near your holiday destination

              What does pet insurance cover when I’m travelling in the UK?

              Many pet owners don’t realise that their cover travels with them within the UK. Whether your cat swallows something dangerous in a holiday cottage or your dog injures a paw on a walk, pet insurance can help with the vet fees, subject to the terms and limits of your policy.

              Tesco Pet Insurance policies also include access to a 24-hour vet helpline, so if you’re not sure whether your pet needs emergency treatment or can wait until morning, you can speak to a qualified vet any time of day or night. This is particularly valuable when you’re away from your usual vet and don’t know the local area.

                Example - a sick dog on holiday

                Your dog eats something on a beach walk and becomes unwell in the evening. You’re far from home and not sure whether to go to an emergency vet. A quick call to your 24-hour vet helpline gives you guidance, and if treatment is needed, your policy can help cover the eligible costs.

                  Does pet insurance cover holiday cancellation if my pet is ill?

                  Pet insurance is mainly designed to cover the cost of veterinary treatment, rather than things like cancelled trips or lost deposits. However, Tesco Pet Insurance may cover holiday cancellation or cutting your trip short in certain situations, such as where your pet becomes seriously ill or goes missing shortly before or during your trip.

                  Any cover for this is limited and subject to specific conditions, including how close you are to your departure date and whether the treatment is confirmed as urgent by a vet. Because of this, it is important to check your policy carefully so you understand what is and is not included, as well as any limits or exclusions that may apply.

                  If you are concerned about losing money due to cancelling a trip, it is also worth checking whether your travel insurance provides additional cover.

                  Travelling overseas? See our guide - Taking pets abroad - what do I need to know?

                    What are the most common risks for pets on UK holidays?

                    Unfamiliar environments, seasonal hazards, and changes in routine mean holidays can bring unexpected health risks for pets, even on short domestic trips.

                    Common holiday risks to be aware of include:

                    • Ingestion of toxic plants, foods, or substances in holiday properties or countrysideIngestion of toxic plants, foods, or substances in holiday properties or countryside
                    • Injuries from unfamiliar terrain, such as rocky coastlines or steep hillsidesInjuries from unfamiliar terrain, such as rocky coastlines or steep hillsides
                    • Overheating, particularly in dogs exercised in warm weatherOverheating, particularly in dogs exercised in warm weather
                    • Blue-green algae in lakes and rivers, which can be fatal to dogsBlue-green algae in lakes and rivers, which can be fatal to dogs
                    • Adder bites, which can happen in spring and summer in rural areas of the UKAdder bites, which can happen in spring and summer in rural areas of the UK
                    • Stress-related illness in cats placed in an unfamiliar environmentStress-related illness in cats placed in an unfamiliar environment
                    • Ticks, particularly in wooded or moorland areasTicks, particularly in wooded or moorland areas

                    Check your pet for ticks after every walk in areas with long grass or woodland, and make sure their flea and tick treatment is up to date before you travel.

                      What should I do if my pet needs emergency treatment while I’m on holiday?

                      Contact the nearest vet as quickly as possible, or call a 24-hour vet helpline for advice.

                      Before you travel, do a quick search for emergency vet practices in the area you’re visiting and save the numbers in your phone. In an emergency, time matters, and knowing where to go in advance can make a real difference.

                      Keep your pet insurance policy info, the claims contact details, and the 24-hour vet helpline number saved or written down somewhere. You’ll be glad of it if you’re dealing with a sick or injured pet in an unfamiliar location.

                        Tesco Pet Insurance includes vetfone

                        Get advice for your pet, whenever you need it. Just call the vetfone helpline.

                        • Talk to vets and nurses registered with the Royal College of Veterinary SurgeonsTalk to vets and nurses registered with the Royal College of Veterinary Surgeons
                        • 24/7 phone, live chat and video calls24/7 phone, live chat and video calls
                        • Unlimited access, at no extra costUnlimited access, at no extra cost

                        Refer a friend - and get a Tesco Gift Card

                        Refer a friend if you’re a Tesco Pet Insurance customer. And you’ll both get a £30 Tesco Gift Card as part of our pet insurance rewards. T&Cs apply.

                        Help for Pet Insurance customers

                        Find out how to manage your policy or make a claim if you have Tesco Pet Insurance.

                        Important information

                        Tesco Pet Insurance is arranged, administered and underwritten by Pinnacle Insurance Ltd.

                        vetfone is provided by Vetsdirect Ltd.

                        You'll find complete details of the cover, monetary limits, exclusions, excesses and terms in our policy documents.

                          Learn more about the benefits of Pet Insurance

                          Find cover for your four-legged friend and save money with your Clubcard. Choose Lifetime Pet Insurance, Maximum Benefit or Time Limited.

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