Traveling With Dogs: Everything to Sort Before You Leave Home

Most trips with a dog go wrong before anyone leaves the house. The paperwork wasn’t ready, the hotel’s “pet friendly” turned out to mean dogs under 25 pounds, or the airline wanted a health certificate issued within the last ten days.

This guide covers everything that needs sorting before you go, whichever way you’re traveling: by car, plane, train or ferry, for a weekend away or a move abroad.

Key Takeaways

• Pick the travel method around your dog, not just your plans. Size, breed, age and temperament decide what’s realistic.
• Start the paperwork early. Health certificates for flights often need to be issued within 10 days of travel, and international trips can take months.
• Update the microchip and tag before you leave. A lost dog in an unfamiliar town is much harder to get back without them.
• Ask hotels the right questions. “Pet friendly” can hide weight limits, extra fees and rules about leaving a dog alone in the room.
• Keep the routine. Same food, same feeding times, same bed. It’s the biggest thing that keeps a dog settled away from home.

Choosing How to Travel

There’s no single best way to travel with a dog. Each option suits some dogs and rules others out completely.

By Car

For most dogs, the car is the safest and least stressful option. You control the temperature, the stops and the pace, and your dog stays with you the whole time.

The trade-off is that it needs a proper crash-tested restraint and some planning around stops, heat and car sickness. If you’re driving, our Road Trip With Dog guide covers the whole drive, stop by stop.

By Plane, in the Cabin

Small dogs can usually fly in the cabin in a carrier that fits under the seat in front. Most major US airlines charge roughly $95 to $150 each way for this, and the combined weight of dog and carrier usually needs to be around 20 pounds or less.

Cabin spots are limited per flight, so book your dog’s place when you book your own seat, not afterwards.

By Plane, in Cargo

Cargo is the highest-risk way for a dog to travel. USDA data cited by the American Veterinary Medical Association shows flat-faced breeds account for roughly half of recorded dog deaths during US air travel, and many airlines no longer carry pets in cargo at all.

If your dog is too big for the cabin, it’s worth asking whether flying is really necessary. For the full picture on airline rules, see Airplane Travel Dog Safety.

By Train

Amtrak allows dogs and cats on most routes, with a few firm rules:

• Pet and carrier together must weigh 20 pounds or less.
• Trips can be up to 7 hours in total, including transfers.
• The carrier can be no bigger than 19 x 14 x 10.5 inches, and your dog has to stay inside it.
• Dogs must be at least 8 weeks old, and it’s one pet per passenger.
• A fee applies to each segment, and some services, like the Auto Train, don’t take pets at all.

Train rules differ a lot outside the US. Many European trains take dogs of any size on a lead, often with a muzzle required.

By Ferry

Ferry rules range from dogs staying in the car for the whole crossing to pet-friendly cabins and outdoor deck areas. Check before booking, especially on long crossings. A dog shut in a car below deck for hours on a warm day is in real danger.

Leaving Your Dog at Home

Sometimes the kindest option is not taking them. A very anxious dog, a senior with health problems or a trip with long days out and no dog-friendly places to go can all be easier on your dog with a trusted sitter or a good boarding kennel.

Is Your Dog Ready to Travel?

Before you book anything, think honestly about your dog:

• Age: Young puppies need frequent toilet breaks and may not have finished their vaccinations. Many airlines and countries have minimum ages.
• Breed: Flat-faced breeds like Pugs, French Bulldogs, Boxers and Bulldogs struggle with heat and stress. Many airlines won’t fly them in cargo at all.
• Health: Seniors and dogs with heart, breathing or joint problems need a vet’s opinion before any long trip.
• Temperament: A dog who panics in the car or struggles with new places needs practice trips first, not a ten-hour journey.

A vet check a few weeks before a big trip is worth it. You can sort vaccinations, ask about car sickness or anxiety medication, and get copies of records in one visit.

The Paperwork and ID Checklist

Gather these before any trip longer than a day:

• Vaccination records, including a current rabies certificate. Many hotels, kennels and campgrounds ask for proof.
• A health certificate (CVI) for flights and interstate or international moves. Airlines often want it issued within 10 days of travel, so time the vet visit carefully.
• Microchip details registered to you, with your current mobile number.
• An ID tag on the collar with your mobile number. Add a second temporary tag with where you’re staying if it’s a longer trip.
• A recent photo of your dog on your phone, showing any markings, in case they go missing.
• Medication and prescriptions, with enough for the trip plus a few extra days.
• Your vet’s phone number, and the nearest emergency vet to where you’re staying.

The microchip matters more than most people realize. A study of shelter dogs published in the Journal of the American Veterinary Medical Association found microchipped dogs were returned to their owners about 52 percent of the time, compared with about 22 percent for dogs without one. Most of the failures came from chips that weren’t registered or had out-of-date details.

Traveling Internationally

International travel takes the most planning, sometimes months of it. Every country sets its own rules, and they can change.

Leaving the US: Check the USDA APHIS pet travel page for your destination. Many countries need a USDA-endorsed health certificate, a microchip fitted before the rabies vaccine, and sometimes a rabies blood test taken weeks or months ahead.

Coming back into the US: Since August 2024, the CDC requires every dog entering the US, including dogs returning home, to be:

• At least 6 months old
• Microchipped with an ISO-compatible chip
• Covered by a CDC Dog Import Form submitted online before travel, with the receipt carried with you

Dogs that have been in a country the CDC lists as high risk for rabies need extra paperwork, and may only be able to enter through certain airports. Check the CDC’s dog travel pages before you book anything.

Hawaii has its own strict rabies rules even for travel from the mainland, so plan well ahead for a trip there.

Finding Somewhere to Stay

“Pet friendly” means very different things from one place to the next. Ask these questions before you book:

• Is there a weight or size limit?
• How many dogs are allowed per room?
• What’s the pet fee, and is it per night or per stay?
• Can the dog be left alone in the room, and if so, does it need to be crated?
• Are any breeds restricted?
• Is there somewhere nearby to walk?

Ask for a ground-floor room near an exit if you can. Late-night toilet trips are much easier, and you won’t be walking a nervous dog through long corridors and lifts.

For vacation rentals, read the listing’s pet rules carefully and check whether the yard is fully fenced. Don’t assume it is.

Settling In When You Arrive

• Walk your dog before going inside, so they arrive having stretched their legs and been to the toilet.
• Set up their bed, water and a familiar blanket straight away.
• Check the room for hazards at nose height: dropped pills, cleaning products, cables, and gaps behind furniture.
• Keep the door shut when you’re coming and going. A dog in a strange place is more likely to bolt.
• Avoid leaving them alone on the first evening if you can. Strange noises in the corridor often set off barking.

What to Pack

Whatever the trip, pack these:

• Enough of their usual food for the whole trip, plus two extra days
• A collapsible water bowl and a bottle of water
• Their bed or a familiar blanket
• Lead, collar with ID, and a spare lead
• Waste bags, plenty of them
• Medication and copies of their records
• A towel or two
• A favorite toy and a long-lasting chew
• A basic pet first aid kit

Don’t change their food for a trip. A sudden switch on top of the stress of traveling is a common cause of an upset stomach.

Keeping Your Dog Calm Away From Home

Dogs cope with new places much better when the rest of their day still looks familiar:

• Feed at the usual times, in their usual bowl.
• Keep walks at roughly the same times.
• Bring something that smells of home, like their bed or an unwashed blanket.
• Give them a quiet spot to retreat to, especially when staying with family or friends who have other pets or children.
• Use a stuffed rubber toy or lick mat to help them settle in the evening.

Watch for signs they’re struggling: pacing, panting when it isn’t hot, refusing food, or hiding. Our Dog Body Language Decoder can help you read what they’re telling you.

Health and Safety on the Trip

Heat: Never leave your dog in a parked car, even for a few minutes. On a 70°F day, the inside of a car can climb to around 89°F in just 10 minutes.

Water: Carry your own. Lakes and ponds can hold toxic blue-green algae, which has killed dogs within hours, and there’s no reliable way to spot it by looking.

Local risks: Ticks, heartworm and other parasites vary by region. If you’re heading somewhere new, ask your vet whether your dog’s prevention covers it.

Emergencies: Save the nearest emergency vet’s number as soon as you arrive. In the US, the ASPCA Animal Poison Control Center is on (888) 426-4435 (a fee applies).

Small Dogs vs Large Dogs

Size changes almost everything about travel, from which airlines will take your dog to how many hotels will. See Small Dog Travel Safety Tips and Large Dog Travel Safety Tips for what changes for each.

Common Mistakes

Booking first and checking the rules later. Airline cabin spots, hotel weight limits and international paperwork can all rule a trip out if you leave them too late.

Getting the health certificate too early. If the airline wants it within 10 days of travel, a certificate from three weeks ago won’t be accepted.

Forgetting to update the microchip. A chip registered to an old phone number or a previous owner won’t get your dog home.

Switching food for the trip. Travel is stressful enough on the stomach without a new diet on top.

Assuming “pet friendly” means any dog. Ask about size, breed and number limits before you book.

Flying a flat-faced breed in cargo. The documented risk is high enough that most airlines have stopped allowing it.

FAQ

How far in advance should I start planning?

For a domestic road trip, a week or two is usually enough. For a flight, book your dog’s cabin spot when you book your ticket and time the vet visit for the health certificate. For international travel, start at least three to six months ahead, as some countries need blood tests and waiting periods.

Can I sedate my dog for travel?

Most vets advise against sedating dogs for flights, because sedation can affect breathing and balance, especially at altitude. For anxiety or car sickness, talk to your vet about options that are safe for your dog.

Do I need a health certificate for a road trip?

Not usually for a domestic road trip, but carry proof of rabies vaccination, as hotels, campgrounds and some state lines may ask for it.

What’s the safest way to travel with a big dog?

By car, with a crash-tested crate or harness, in most cases. Large dogs usually can’t fly in the cabin, and cargo carries real risks.

Can my dog fly in the cabin with me?

Only if they fit in an airline-approved carrier under the seat, which usually means dog and carrier together weigh about 20 pounds or less. Rules and fees vary by airline, so check before you book.

The Bottom Line

Traveling with a dog goes well when the planning’s done early: the right travel method for your dog, paperwork timed correctly, an updated microchip, and a place to stay that really suits them.

If you’re driving, carry on to Road Trip With Dog for the full stop-by-stop plan. For every other safety topic, see Dog Safety: The Complete Guide.