Taking a Dog to Thailand: Breeds, Crates and Import Rules

A dog can hold a valid Thai import permit, five current vaccinations, a government-endorsed health certificate and a confirmed booking, and still be refused at the check-in counter for the shape of its face. That is not a bureaucratic edge case. It is the single most common way a dog move to Thailand collapses, and it collapses at the airport, in front of the family, after every fee has already been paid.

Owners keep researching one set of rules when there are two. Thailand’s Department of Livestock Development decides whether your dog may enter the country. Separately, and on its own commercial and welfare grounds, the airline decides whether it will carry your dog at all. Those two authorities do not consult each other, do not share a list, and do not fail in the same direction. A dog can satisfy Thailand completely and never board.

This guide covers the four things that make moving a dog structurally different from moving a cat: breed embargoes, the cargo-versus-cabin split, crate geometry across an enormous size range, and Thailand’s own dog-specific import requirements. Our companion guide to moving pets from Europe to Thailand covers the corridor mechanics that apply to any animal. This one covers what applies only to dogs.

The Gate That Stops Most Dogs: Brachycephalic Breed Restrictions

Brachycephalic, or snub-nosed, dogs have the same volume of nasal tissue, sinus and soft palate as any other dog. All of it is compressed into a much shorter skull. The airway is narrower before anything goes wrong. Add the heat, restraint, noise and stress of air transport and the margin disappears.

The evidence for this is not anecdotal. Of 122 dog deaths associated with airline flights over a five-year period, roughly half involved short-faced breeds. Those are US Department of Transportation figures, reported by the American Veterinary Medical Association. English Bulldogs alone accounted for 25 of the 122. Pugs accounted for 11, the only other breed in double figures. Against the hundreds of thousands of animals flown each year, these are small absolute numbers, and the AVMA says so plainly. The raw count is not the point. One anatomical group, a small minority of the dog population, supplied half the fatalities.

Airlines responded with breed embargoes. There is no single global list, because each carrier writes its own. Even so, the restricted set generally includes Bulldogs of every type, French Bulldogs, Pugs, Boxers, Boston Terriers, Shih Tzus, Pekingese, Lhasa Apsos, Shar Peis, Chow Chows, Brussels Griffons, Japanese Chins, Mastiffs and Cane Corsos. Many carriers add pit bull type breeds on separate handling grounds. Some airlines refuse these breeds in the hold outright. Others accept them only outside defined temperature windows, which in practice means a Bangkok arrival is refused for much of the year. Others have withdrawn from carrying dogs in the hold altogether.

Why “my neighbour’s Frenchie flew fine” is the wrong evidence

This is where most owners go wrong. They judge the decision by how it happened to turn out rather than by what was knowable when it was made. That is a specific reasoning failure. A snub-nosed dog that flew to Bangkok and arrived healthy tells you the bet paid off once. It tells you almost nothing about the odds, because you never see the flights that went badly. Nobody posts those.

Run it the other way. If a carrier will accept your Pug, the question is not whether other Pugs have arrived safely. It is what happens if this one does not, and whether you would take that bet at the real probability rather than the remembered one. The downside is not a delay or a cost. It is irreversible, and you are the one holding it, not the airline and not the forwarder who booked it.

There is also a trap in the reverse direction. An airline that has not yet refused a snub-nosed dog on your route has not proved it is permissive. It has proved the refusal has not happened to you yet. Carriers revise embargo policies quietly and often, sometimes between the day you book and the day you fly. A booking reference does not guarantee carriage. The absence of a problem is not the same thing as the presence of a permission.

What to do if your dog is on the list

Three routes remain, and they are genuinely different in quality.

Cabin travel, if the dog is small enough. Many brachycephalic breeds are, and the cabin removes the hold entirely. This is the best available answer when it is available at all.
A carrier that still accepts the breed, on a routing chosen around heat. That means direct where possible, night departures, no long tarmac waits, and no summer transits through a hot hub. Fewer legs beats a cheaper fare on every measure that matters here.
Not flying the dog now. This deserves the same rigour as the other two. Delaying until a cooler season, or until a route with a suitable carrier opens, is a legitimate decision, not a surrender. Owners routinely apply serious analysis to whether to go and almost none to whether to stop.

A veterinary assessment before any booking is worth more than any of this advice. Brachycephalic obstructive airway syndrome exists on a spectrum, and two French Bulldogs of the same weight can present differently. Your vet can tell you where yours sits. A booking agent cannot.

Cargo or Cabin: The Split That Divides Dogs From Cats

Most airlines cap in-cabin animals at roughly 6 to 8 kg including the carrier. That single number is why dog transport and cat transport are different logistics problems rather than the same problem with a different animal in it. The overwhelming majority of cats clear that limit. The majority of adult dogs do not.

A dog can reach Thailand by air in three legal ways, and they are not variations of one process. They differ in who books them, what documents attach, where the dog is handed over and where you collect it.

In-cabin. The dog travels under the seat in front of you as carry-on. It is reserved for small dogs, subject to a per-flight cap on animals in the cabin, and not offered by every carrier on every route.
Accompanied excess baggage. The dog travels in the hold on your ticket, on your flight, checked in when you check in. Simpler than cargo and usually cheaper, but it requires you to be on the same aircraft, which constrains your own travel plans to whatever the dog can be booked onto.
Manifest air cargo. The dog travels as freight on its own air waybill, not attached to any passenger. It is dropped at a cargo terminal rather than a passenger counter and collected from a cargo facility. This is the path most medium and large dogs take, and it is the one owners least expect, because it does not look like travelling with a pet at all. It looks like shipping one.

The cargo path is not a downgrade. The hold used for live animals is pressurised and temperature controlled on the same systems as the cabin. What differs is administrative: an air waybill, a cargo booking window, a terminal that keeps different hours from the passenger terminal, and a collection process at the Bangkok end that our Suvarnabhumi pet arrival guide walks through in detail. Owners who assume they will meet their dog at baggage reclaim are describing a process their dog is not on.

One consequence catches people repeatedly. Cabin and excess baggage both require you to travel. Manifest cargo does not, which means a large dog can be sent ahead or brought later while the family flies on a different date. That flexibility is useful during a relocation, and it is available to dog owners specifically because their dogs are too big for the options that would have removed it.

The Crate: Where a 4 kg Dog and a 45 kg Dog Stop Being the Same Problem

Cats span a narrow size range. One crate size covers nearly all of them. Dogs run from a 2 kg Chihuahua to a 90 kg Mastiff, and the container standard has to stretch across all of it. This is why crate selection is a real engineering step for a dog and a purchase decision for a cat.

The governing standard is the IATA Live Animals Regulations, Container Requirement 1, currently at Edition 52 (January 2026). Airlines apply it at check-in, and check-in staff must enforce it. If the container does not meet the minimum, the animal must not be accepted for travel. There is no discretion at the counter and no appeal.

The measurement formula

IATA sets minimum internal dimensions from four measurements of the animal:

A = length from the tip of the nose to the base or root of the tail
B = height from the ground to the elbow joint
C = width across the shoulders, or the widest point, whichever is greater
D = height in a natural standing position, measured from the top of the head or the ear tip to the floor, whichever is higher

From those, the minimum internal container dimensions for a single animal are:

Length = A + ½B
Width = C x 2
Height = D plus the depth of the bedding

Two details in that list cause most of the failures. The dimensions are internal, not the external measurements printed on the box. And the height must include bedding, which means a crate that fits the dog exactly fails once you put an absorbent mat in it. That mat is itself mandatory.

Then comes the rule that makes this section dog-specific rather than pet-specific. IATA states plainly that snub-nosed breeds require a 10% larger container. So the two hardest constraints in a dog move point in opposite directions: the breeds most likely to face an airline embargo are also the breeds that need the most crate volume to be accepted at all. An owner solving one of those problems without knowing about the other will solve it wrongly.

Worked example

Take a Labrador measuring 75 cm nose to tail root (A), 30 cm ground to elbow (B), 26 cm across the shoulders (C) and 58 cm standing height (D), with a 3 cm bedding mat.

Minimum internal length = 75 + 15 = 90 cm
Minimum internal width = 26 x 2 = 52 cm
Minimum internal height = 58 + 3 = 61 cm

Now give the same dimensions to a Boxer, a brachycephalic breed. The 10% uplift takes the same crate to roughly 99 x 58 x 68 cm internally. That is a different crate, a different chargeable volume, and on some aircraft a different question about whether the container fits the hold door at all.

The specifications that differ between dogs and cats

IATA’s construction rules are not species-neutral, and the differences are all in the direction of dogs needing more:

Ventilation openings: maximum 25 mm x 25 mm for dogs, 19 mm x 19 mm for cats. All openings must be nose and paw proof.
Welded wire mesh: minimum 2.5 mm thickness for dogs, 2.0 mm for cats.
Wooden container sides: minimum 12 mm thickness for dogs, 6 mm for cats. Roofs are 12 mm for both. Any wood used for international transport must comply with IPPC standards.
Total ventilated area: at least 16% of the total surface of the four sides, provided on all four sides, with side and back openings placed over the upper two thirds of the container.
Door fastening: locking pins, where used, must engage the container by at least 1.6 cm. Rigid plastic containers should be further secured with removable fasteners such as cable ties at the four corners of the door frame.
Forklift spacers: mandatory where the total weight of container plus animal exceeds 60 kg, and a minimum of 5 cm in height. Cat crates never reach this threshold. Large dog crates routinely do.
Co-crating: a maximum of two adult animals of comparable size, up to 14 kg each, may share a container. Animals over 14 kg must be crated individually. Two cats commonly qualify. Two Labradors never will.

IATA also notes that rigid plastic containers suit most breeds but may not suit large dogs or aggressive dogs, and that the operator decides whether to accept one. For the largest breeds that usually means a purpose-built wooden container to the CR1 specification, which is a fabrication job with a lead time, not something bought the week before departure.

Measure the dog before doing anything else. Not the old crate, not the breed average, not a size chart. The US to Thailand pet guide makes the same point for that corridor, and it holds everywhere. A crate that has never been checked against the IATA formula is not compliant. It is merely untested, and the test happens at the check-in counter with the flight already boarding.

If you have measured your dog and the numbers put you into custom-build or large-format cargo territory, this is the point to get a second opinion rather than order a box. SwiftCargo’s pet transport team sizes containers against the animal’s own measurements and the specific aircraft type, which is the combination that decides acceptance.

Thailand’s Dog-Specific Import Rules: Five Vaccines, Not Two

Thailand’s Department of Livestock Development (DLD) sets different vaccination requirements by species, and the gap is wide. According to the DLD’s published instructions for importation of dogs, cats and rabbits, cats need two vaccines. Dogs need five.

Dogs: Rabies, Canine Distemper, Canine Hepatitis, Canine Parvovirus and Leptospirosis
Cats: Rabies and Feline Panleukopenia

Three of those five (canine distemper, canine hepatitis and leptospirosis) have no feline counterpart, since feline panleukopenia is itself the feline parvovirus and Thailand’s own list covers rabies for both species. The timing rules matter as much as the list:

For a primary or discontinued vaccination, the animal must wait 21 days after administration before departure. A booster does not trigger the 21-day wait, but the previous vaccination records must be submitted with the permit request to prove it is a booster.
For a primary rabies vaccine, the animal must be at least 12 weeks old when the vaccine is administered.
For leptospirosis specifically, a dog without a valid vaccination must either wait 21 days after administration or return a negative leptospirosis test result within 30 days before departure. That alternative is useful and widely missed. The Royal Thai Embassy in Pretoria and the Royal Thai Embassy in Washington DC both confirm it independently.

The permit chain, and what the form numbers actually mean

The permit process is frequently described in a way that conflates three separate documents. They are distinct, and knowing which is which prevents a category of avoidable panic.

Form R1/1 is the application. You submit it by email to the Animal Quarantine Station (AQS) at your intended port of entry, with the traveller’s name, addresses in Thailand and the origin country; the dog’s breed, sex, date of birth, colour and microchip number; the microchip implantation certificate; and the flight itinerary. You also send a copy of the traveller’s passport and a colour photo of the dog with its face clearly visible.
Form R-6 is the Notice of Import Approval, and Form R-7 is the Import Licence. Both are issued at the AQS on arrival in Thailand, not before departure. The AQS charges a processing fee of 500 baht per animal at that point and provides a receipt. The import licence remains valid until the permitted animal departs Thailand.

The application window is narrow at both ends. Submit no more than 60 days and no fewer than 7 business days before departure. The AQS issues the permit roughly 5 business days after receiving complete documents, and it then stays valid for 60 days. Applications go to the station for your specific airport. Suvarnabhumi, Chiang Mai and Phuket each have their own address, and sending to the wrong one costs days you have not budgeted.

Once the permit arrives, an accredited veterinarian issues the Official Health Certificate, which is then endorsed by the origin country’s competent authority. The OHC is valid for only 10 days from the endorsement date, so the dog must arrive in Thailand inside that window. The AQS accepts only an original endorsement and stamp, never an electronic copy. That makes courier time a real dependency in a 10-day window rather than an afterthought.

The rabies titre question, answered properly

The assumption here runs the other way. Thailand does not require a rabies neutralising antibody titre test (RNATT) for pet import. No titre appears in the DLD’s own instruction set, and neither Royal Thai Embassy source lists one. The requirement is a current rabies vaccination, administered at least 21 days before departure.

That surprises people because the titre test is famous, and it is famous because of Australia and the European Union, where it genuinely is mandatory. If your move ends in Thailand, you do not need it. If Thailand is a stop on a longer path, you almost certainly do, and the sequencing is unforgiving: a titre started after arrival in Thailand can cost the better part of a year, as our guides to the RNATT for Australian pet import and why pets cannot fly directly from Thailand to Australia set out. Owners who might return or move on are making a decision now that constrains a decision later, and the cheap version of that decision comes before departure, not after.

Restricted and Banned Dog Breeds in Thailand

Separate from any airline policy, Thailand restricts the import of specific dog breeds on public-safety grounds. According to the Bangkok Post, the Department of Livestock Development issued an import ban in 2005 covering American Pit Bull Terriers, Rottweilers, Dobermans and Fila Brasileiros. Violation carries a fine of 5,000 baht and confiscation of the dog.

Two things need separating here, because they are routinely collapsed into one another.

First, the import ban and domestic ownership are different questions. Owning these breeds inside Thailand is not illegal, and local breeding was never covered by the import restriction, which is why the breeds remain common in the country. Seeing a Rottweiler in Bangkok tells you nothing about whether you may import one.

Second, Bangkok has its own layer. The Bangkok Metropolitan Administration classifies certain dogs as requiring special control, including Pit Bull Terriers, Bull Terriers, Staffordshire Bull Terriers, Rottweilers and Fila Brasileiros. Those dogs must be muzzled in public, kept on a lead no longer than 50 cm, and handled only by a person meeting the applicable age requirements. That is a municipal keeping rule, not an import rule, and it applies after arrival.

Enforcement of the import ban varies, and lists change. If your dog is one of these breeds, or a cross with one, confirm the current DLD position in writing before you book anything. By the time the flights are booked and the health certificate is issued, a breed restriction leaves no good options.

Taking a Dog to Thailand From the UK

UK-origin owners have one requirement no other origin shares, and it is easy to miss because it does not appear in Thailand’s own documentation.

Exporting a dog from Great Britain to Thailand requires export health certificate 2917, a Thailand-specific certificate applied for through the GOV.UK online service. It requires a Government Gateway account and a Defra account, and it must be certified by an official veterinarian or inspector whose registration has been checked by the Animal and Plant Health Agency. Not every practice has an OV who can certify exports, so you have to find the vet before the application goes in, not after. Northern Ireland runs a separate process, applied for through DAERA’s DECS system.

The wider route is set out in the GOV.UK guidance on taking a pet to a non-EU country. A GB pet passport is not the instrument here. Thailand needs the EHC, and the EHC needs an OV appointment scheduled to land inside the 10-day validity window that starts at endorsement. The practical difficulty of a UK dog move is sequencing the vet, the endorsement, the courier and the flight into that window, more than any single requirement in it. The corridor context sits in our guide to moving from the UK to Thailand.

For comparison, US-origin dogs follow the same shape with different names: a USDA-accredited veterinarian issues the OHC and APHIS endorses it, with the same 10-day clock and the same original-stamp requirement. The structure is identical. The institutions are not.

The Sequence That Works

Order matters more than speed. Each step below depends on the one before it, and doing them in parallel to save time is how owners end up with a valid certificate for an invalid flight.

Get a veterinary assessment and breed check first. Before any booking. Establish whether the dog is brachycephalic, whether it is on Thailand’s restricted list, and whether it is fit to fly. This is the only step that can end the process, so it goes first.
Measure the dog and confirm the crate. A + ½B, C x 2, D plus bedding, plus 10% if snub-nosed. Custom builds need lead time.
Confirm a carrier will accept this breed, this crate and this route. In writing. Do this before the vaccination schedule is locked, because the route determines the date and the date determines the 21-day windows.
Microchip, then vaccinate. The chip must be readable and its number must match every document that follows. Build in the 21-day wait for any primary vaccination.
Apply to the AQS for the port of entry. No more than 60 days out, no fewer than 7 business days out. Allow 5 business days for issuance.
Book the OHC appointment to land inside the 10-day window. Vet appointment, then government endorsement, then courier, then flight. Count backwards from the arrival date, not forwards from today.
Arrive with originals. Passport, original vaccination record or pet passport, the endorsed original OHC, and a printout of the import permit. R-6 and R-7 are issued at the AQS, and you pay the 500 baht per animal there.

The Thailand relocation timeline shows how this fits alongside household goods and visa steps, which run on their own clocks and do not wait for the dog.

What Actually Goes Wrong

Booking flights before confirming breed acceptance. This is the most expensive mistake available, because everything downstream is built on a flight that was never going to carry the dog.
Buying a crate to the external dimensions. IATA specifies internal dimensions. The difference is a wall thickness on each side, and it is enough to fail the check.
Forgetting bedding in the height calculation. The mat is mandatory and it counts towards the required height.
Missing that snub-nosed breeds need 10% more container. Owners who correctly apply the formula still fail here, because the uplift is a single line in the standard and it is easy to read past.
Treating leptospirosis as optional. It is one of the five, it has no cat equivalent, and it carries its own test-based alternative that owners discover too late to use.
Letting the OHC expire in transit. Ten days from endorsement, originals only, no electronic copies. Courier delays consume this window quietly.
Sending the permit application to the wrong Animal Quarantine Station. Suvarnabhumi, Chiang Mai and Phuket are separate offices with separate addresses.
Assuming the dog comes off at baggage reclaim. Manifest cargo is collected from a cargo facility, on that facility’s hours.

Every item on that list is cheap to prevent and expensive to fix, and all of them are decided before the first vet appointment rather than at the airport. SwiftCargo’s pet transport team handles the breed and carrier confirmation, the crate specification, the DLD permit application and the Bangkok arrival as one sequenced file, which is the only way the 21-day, 60-day and 10-day windows can be made to line up rather than collide.

Sources

Frequently Asked Questions

Can I take my dog to Thailand?

In most cases yes. Thailand allows dog imports with an ISO microchip, five current vaccinations, a Department of Livestock Development import permit and a government-endorsed health certificate issued within 10 days of arrival. The two situations where the answer is no are a breed on Thailand’s 2005 import ban list, and a dog no airline on your route will carry, which most often means a snub-nosed breed facing a carrier embargo.

Does Thailand require a rabies titre test for dogs?

No. Thailand does not require a rabies neutralising antibody titre test for pet import. A current rabies vaccination administered at least 21 days before departure is what the Department of Livestock Development asks for. The titre test is mandatory for Australia and the European Union, which is why it is widely assumed to apply everywhere, but it is not a Thai requirement. If you may later move your dog on to Australia or the EU, the titre becomes critical and is far cheaper to start before you leave than after you arrive.

Which vaccinations does Thailand require for a dog, and how is that different from a cat?

Dogs need five: rabies, canine distemper, canine hepatitis, canine parvovirus and leptospirosis. Cats need two: rabies and feline panleukopenia. Primary vaccinations require a 21-day wait before departure, boosters do not, and a primary rabies vaccine requires the animal to be at least 12 weeks old. A dog without a valid leptospirosis vaccination can instead return a negative leptospirosis test result from within 30 days before departure.

Can a French Bulldog or Pug fly to Thailand?

Sometimes, and it depends entirely on the airline rather than on Thailand. Many carriers refuse snub-nosed breeds in the cargo hold outright, and others accept them only outside defined temperature limits. If the dog is small enough to travel in the cabin, that route avoids the hold entirely and is usually the best option. Get a veterinary assessment of your specific dog before booking, because brachycephalic airway severity varies widely between individuals of the same breed and weight.

What size crate does my dog need for a flight to Thailand?

IATA Container Requirement 1 sets minimum internal dimensions from four measurements of the dog. Length equals the nose-to-tail-root length plus half the ground-to-elbow height. Width equals twice the shoulder width. Height equals the standing height from floor to top of head or ear tip, plus the depth of the bedding. Snub-nosed breeds require a container 10 percent larger than the calculated result. These are internal dimensions, not the external size printed on the box, and check-in staff must refuse an animal whose container does not meet the standard.

Which dog breeds are banned from import into Thailand?

The Department of Livestock Development issued an import ban in 2005 covering American Pit Bull Terriers, Rottweilers, Dobermans and Fila Brasileiros, with a fine of 5,000 baht and confiscation for violation. Owning these breeds inside Thailand is not illegal and local breeding was never banned, which is why they remain common in the country. Separately, Bangkok requires certain breeds to be muzzled in public and kept on a lead no longer than 50 centimetres. Lists change and enforcement varies, so confirm the current position with the DLD in writing before booking.

Will my dog travel in the cabin or as cargo?

Most airlines cap in-cabin animals at around 6 to 8 kilograms including the carrier, so most adult dogs travel in the hold. There are two hold options. Accompanied excess baggage puts the dog on your ticket and your flight, checked in when you check in. Manifest air cargo sends the dog on its own air waybill, dropped at and collected from a cargo terminal rather than a passenger counter. Cargo does not require you to be on the same flight, which gives large-dog owners scheduling flexibility that cabin and excess baggage do not.

How far in advance do I apply for the Thai import permit?

Submit the R1/1 application to the Animal Quarantine Station at your port of entry no more than 60 days and no fewer than 7 business days before departure. Issuance takes about 5 business days from receipt of complete documents, and the permit stays valid for 60 days after issue. Suvarnabhumi, Chiang Mai and Phuket each have their own Animal Quarantine Station address. Forms R-6 and R-7, the notice of import approval and the import licence, are issued on arrival in Thailand, where a 500 baht processing fee per animal is paid.

Taking a Dog to Thailand: Breed Restrictions, Crates and Import Rules