🔄 Updated : June 25, 2026

Flying opens the door to far-away trips with your dog, but it’s also the most heavily regulated way to travel. Cabin or hold, maximum weight, standardized crate, health documents: every airline and every destination has its own rules. Poor preparation can mean a denied boarding on the day of the flight. Here is a complete, step-by-step guide to organizing your companion’s flight with confidence.

Cabin or hold: how will my dog travel?

Where your dog rides depends mostly on weight and on the airline.

  • In the cabin: reserved for small dogs, generally up to 6 to 8 kg (13 to 18 lb) including the travel carrier. The carrier must fit under the seat in front of you. It’s the most reassuring option because your dog stays with you.
  • In the hold: for heavier dogs, traveling in a rigid IATA-approved crate, in a pressurized, heated compartment.
  • Possible refusal: some airlines do not accept brachycephalic breeds (bulldogs, pugs) in the hold, because of the respiratory risk.

Always check the exact conditions with your airline before booking.

What is an IATA crate and how do you choose one?

The IATA crate is the international standard for transporting animals by air. It must be rigid, well ventilated on at least three sides, fitted with a lockable door and a leak-proof floor. Your dog must be able to stand up, turn around and lie down comfortably inside.

Get your dog used to the crate several weeks before the flight. To pick the right one, see our guide to choosing your dog’s travel gear, which covers dimensions and safety criteria in detail.

How do you size the travel crate correctly?

A crate that’s too small is the number one reason for refusal at the check-in counter. The IATA rule is precise: the dog must be able to stand without touching the ceiling, turn around without difficulty and lie down naturally. To calculate the right dimensions, take four measurements with your dog standing:

  • A — length: from the tip of the nose to the base of the tail.
  • B — leg height: from the ground to the elbow (front-leg joint).
  • C — width: at the shoulders, at the widest point.
  • D — total height: from the ground to the top of the head (or of erect ears).

The crate’s interior length should be about A + ½ B, and the interior height must be at least D plus a few centimeters (an inch or so). Measure your dog in the morning, standing and relaxed, rather than after exercise. Better to build in a margin of 3 to 5 cm (1 to 2 in) all around: a slightly bigger crate always passes, the opposite never does. Also check that the hardware is metal (plastic fasteners are sometimes refused) and that water and food bowls are accessible from the outside.

How do you prepare your dog’s flight, step by step?

Here is the sequence to follow so nothing gets forgotten:

  1. Microchip your dog: it’s a mandatory prerequisite for all travel.
  2. Vaccinate against rabies: the vaccine must be valid and given at least 21 days before departure.
  3. Get the travel document: the EU pet passport from your veterinarian if your dog is based in the EU, or the health certificates required by your destination country.
  4. Check the arrival country’s requirements: some require a rabies titer test, a quarantine or parasite treatments.
  5. Contact the airline to reserve your pet’s spot and confirm the permitted weight and crate type.
  6. Get a compliant IATA crate and train your dog to use it.
  7. Prepare for the big day: exercise before departure, a light meal 4 hours before, a water bowl attached to the crate, a “live animal” label.

How far ahead do you need to start?

Health paperwork is the number one source of delays. The rabies vaccine requires a 21-day validity period, and some countries demand a rabies titer test that can involve a wait of several months. Plan on at least one to two months of preparation, and much more for destinations outside the European Union.

Step Recommended lead time
Microchip identification Before any vaccination
Rabies vaccine At least 21 days before departure
Rabies titer test (if required) Several weeks to several months
Booking with the airline As soon as you buy your ticket

How do you get your dog used to the crate before the flight?

A dog that discovers its crate at the airport will experience the flight as a traumatic confinement. Crate training builds over three to four weeks, in short, positive steps. Start by placing the crate, door open, in a living area, and regularly leave treats, toys and your dog’s usual bedding inside so it becomes associated with a pleasant place. Once your dog goes in spontaneously to rest, close the door for a few seconds, then a few minutes, staying nearby, and reward calm behavior.

Then increase the duration and add movement: carry the crate, put it in the car, take short drives. The goal is for the crate to be a familiar refuge at flight time, not a surprise. A few days before departure, slip a piece of fabric carrying your scent inside — it’s very reassuring for the animal. On the other hand, avoid sedatives without veterinary advice: most airlines advise against them, because they disrupt a dog’s temperature regulation and balance at altitude. If your dog is very anxious, talk to your veterinarian at least two weeks ahead.

What budget should you plan for flying with a dog?

The cost depends on the airline, the distance and how the dog travels. As a guide, expect €50 to €125 ($60–145) for a small dog in the cabin on a flight within Europe, and €100 to €400 ($115–460) for hold transport depending on distance. Then come the often underestimated extras: a compliant IATA crate (€40 to over €150 / ~$45–170 depending on size), the veterinary consultation and travel document, the rabies vaccine, and a possible rabies titer test (on the order of €70 to €120 / ~$80–140 at an approved laboratory). For some destinations, dated parasite treatments or translated certificates are also required, sometimes at a cost. Set an overall budget and plan ahead: pet spots are limited per flight and fill up fast, especially in high season.

Train or plane: which should you choose?

For trips within continental Europe, the train is often simpler and less stressful for the animal: see our tips for train travel with a dog. The plane is the answer for long distances and island or intercontinental destinations. In every case, getting the paperwork done early makes all the difference.

Sources

🧰 Our tools to plan your trip

Dog flight checker Can my dog fly? 62 airlines compared, by departure airport, destination and your dog's weight. Open the checker → IATA crate calculator IATA crate calculator The airline-approved crate size for your dog, using the official IATA formula. Calculate the size → Entry requirements by country Entry requirements checker Country-by-country entry rules: paperwork, vaccines, lead times and official sources. Check the rules →

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Frequently asked questions

What is the maximum weight for flying in the cabin?
The limit generally falls between 6 and 8 kg (13 and 18 lb), travel carrier included, but it varies by airline. Above that, the dog travels in the hold in an IATA crate. Always check your airline’s exact threshold.
Can my dog travel in the hold without me?
Yes, some airlines will transport a dog as cargo, without its owner on board, but the conditions are strict and expensive. Most travelers prefer to accompany their pet on the same flight.
Can short-nosed breeds fly?
Many airlines refuse brachycephalic breeds in the hold because of their respiratory sensitivity and the risk of heatstroke. Check with the airline before you book, and favor the cabin if your dog’s weight allows it.
Is a rabies titer test required for every country?
No, the rabies titer test is only required by certain countries outside the European Union. For travel within the EU with a valid travel document, a current rabies vaccination is generally enough.
Can I give my dog a sedative before a flight?
It’s not recommended without veterinary advice. Most airlines advise against sedation because it disrupts the animal’s temperature regulation and balance at altitude. If your dog is anxious, see your veterinarian at least two weeks before the flight and favor gradual crate training instead.