Flying is stressful for dogs and it carries real risk. Before booking, the first question worth asking is whether the journey needs to happen by air at all.
First: should your dog fly?
Strongly advise against flying:
- Brachycephalic breeds — Pugs, French Bulldogs, Bulldogs, Boxers, Shih Tzus, Pekingese. Their compromised airways make them far more vulnerable to heat stress and breathing difficulty, and analyses of air travel deaths have consistently found them heavily over-represented. Many airlines now refuse to carry them in the hold, and some refuse them entirely
- Very young or very old dogs
- Dogs with heart or respiratory disease
- Dogs with significant anxiety, particularly noise or confinement phobia
- Dogs in season, pregnant, or recently operated on
Consider alternatives: a road journey, a pet transport service by road and ferry, or a dedicated pet airline where one operates on the route.
Cabin, hold or cargo
In cabin. Small dogs only, in a carrier that fits under the seat in front — typically under 8kg including the carrier, though limits vary. The best option where it is available. Airlines cap the number of animals per flight, so book early.
Checked baggage (hold). The dog travels in the pressurised, temperature-controlled hold on the same flight as you.
Cargo/manifest. For larger dogs, or where regulations require it, the dog travels as freight, sometimes on a different flight.
Note that some countries require animals to arrive as manifest cargo regardless of the owner’s arrangements.
The crate
Must be an IATA-compliant rigid travel crate:
- Rigid plastic or wood, not collapsible fabric or wire
- Large enough to stand without ducking, turn round, and lie down naturally
- Ventilation on at least three sides
- Metal hardware — check the airline’s rules on bolts versus plastic clips
- Leak-proof floor with absorbent bedding
- Water container attached inside, fillable from outside
- Live animal labels, arrows indicating which way up, and your contact details
- Your dog’s name and a photograph on the outside
Acclimatise the dog to it for weeks beforehand. Feed meals in it, let them sleep in it, take short car journeys in it. A dog meeting their travel crate for the first time at an airport is the worst possible start.
Paperwork
Requirements vary enormously by destination, and they change. Work from the destination country’s official government guidance, not a forum post, and start months ahead.
Typically required:
- Microchip, to the correct ISO standard, implanted before the rabies vaccination
- Rabies vaccination, with a mandated waiting period afterwards — frequently 21 days, sometimes longer
- Rabies titre test for some destinations, with a waiting period after the blood draw that can run to three months
- Animal health certificate, issued by an official vet within a narrow window before travel
- Tapeworm treatment, administered within a specified window for some countries
- Import permit for some destinations
- Approved route and entry point
Some destinations have quarantine requirements. Some have breed restrictions that would prevent entry entirely.
Timelines are usually the constraint. The titre test plus waiting period alone can mean planning four months ahead.
Sedation
Most veterinary and airline guidance advises against sedating dogs for air travel.
The reasons are specific: sedatives can impair thermoregulation, affect breathing and cardiovascular function at altitude, and reduce a dog’s ability to brace themselves in a moving crate, which increases injury risk. Several airlines will refuse a visibly sedated animal.
If your dog is anxious enough that sedation seems necessary, that is a strong argument for not flying them.
Discuss it with your vet. There are anti-nausea and short-acting anti-anxiety options that may be appropriate, and the answer should come from someone who has examined your dog.
Reducing the risk
Book a direct flight. Every connection is another loading, unloading and period on a tarmac.
Fly at moderate temperatures. Early morning or late evening in summer, midday in winter. Many airlines have temperature embargoes, and they exist for good reason.
Avoid busy travel periods.
Exercise well beforehand.
Do not feed a large meal within about four hours of departure. Water up to departure.
Freeze water in the crate’s bowl so it does not spill during loading and melts through the flight.
Include an unwashed item of your clothing.
Attach a small bag of food to the crate with feeding instructions, in case of delay.
Tell the cabin crew that a dog is in the hold. It is a reasonable request, and many crews will confirm loading with the flight deck.
Do not put a collar with a hanging tag on a crated dog — it can catch. Use a flat collar with details written on it, or attach details to the crate.
On arrival
- Expect a subdued, thirsty, possibly nauseous dog
- Offer small amounts of water first, and a small meal later
- Toilet break as soon as you are through
- Check for injuries, sore pads and rubbed noses
- Expect a few days of unsettled behaviour and disturbed sleep
- Have the destination vet’s details already noted
The honest assessment
For a fit, confident, non-brachycephalic dog, on a direct flight, in moderate weather, with a properly acclimatised crate and correct paperwork, air travel is usually uneventful.
For a nervous dog, a flat-faced breed, an elderly dog, a hot-weather flight, or a route with connections, the risk is meaningfully higher — and in several of those cases the right answer is a different form of transport, or leaving the dog with someone they know.
