International pet travel comes down to three things done in the right order — microchip and rabies vaccination started early, an airline whose pet policy actually fits your pet’s size and route, and destination-specific paperwork (titer tests, import permits) begun three to six months out. Skip the order and you risk a pet turned away at the gate.
Which countries actually make this easy? What paperwork do you need, and when? Done right, pet-friendly international travel isn’t hard — it’s just unforgiving of shortcuts. The good news: once you know the sequence, it stops feeling like a maze.
The paperwork, in the order it actually needs to happen
Start here, months before you book flights — and for US-based pets, the USDA APHIS pet travel portal is worth bookmarking, since it tracks country-specific requirements as they change:
ISO-compliant microchip, first. Nearly every destination requires it, and it has to be implanted before the rabies vaccination that follows, or the vaccine record won’t count.
Rabies vaccination, administered after the microchip. Most countries want this at least 21 days before travel for a first-time vaccination.
Rabies titer test (FAVN), only for certain destinations. Japan, Australia, Singapore, and Hawaii require this blood test to confirm the vaccine actually worked — and it can only be drawn 30 days after the vaccine, with results taking additional months. This single step defines your whole timeline, so check it before you plan anything else.
International health certificate, issued by an accredited vet close to departure — most are valid for only about 10 days, so this step happens last, not first.
Government endorsement, where required (USDA APHIS in the US) — increasingly, the validity window is now counted from the endorsement date, not the vet’s signature, so submit promptly.
One extra detail worth knowing: the EU Pet Passport only works for pets that live in the EU and are re-entering it. Arriving from outside the EU, you’ll need a non-commercial EU health certificate instead — a different document with its own paperwork.
Airlines that make this manageable
Not every airline treats pets the same way, and policies shift often enough that “confirm before booking” is the rule, not a suggestion:
KLM, Lufthansa, and Air France — strong in-cabin policies for small pets, well-established across European hubs, though all three have shifted more routes toward manifested cargo for larger animals.
Turkish Airlines and Qatar Airways — consistently good communication and structured pet programs, with occasional in-cabin space in premium cabins if the aircraft allows.
TAP Portugal — a standout for small pets on transatlantic routes, with predictable pricing and generous quotas.
Alaska Airlines — the domestic US benchmark: low fees, clear rules, and one of the few carriers still offering climate-controlled cargo for larger pets.
Two things to double-check every time: breed restrictions (brachycephalic breeds like bulldogs and pugs are often barred from cargo, and some airlines restrict them seasonally even in-cabin) and cabin bans — a handful of major international carriers no longer allow pets in the cabin at all, regardless of size.
Destinations for pet-friendly international travel
Once the paperwork’s sorted, these are the places that make the effort worth it:
Portugal fits laid-back coastal wandering — dog-friendly cafés, beaches, and a culture that barely blinks at a pet under the table.
France fits pets built into everyday life — many restaurants, and even regional trains, welcome a well-behaved dog without a second thought.
Costa Rica fits nature-forward travel — pet-friendly eco-lodges and a relatively straightforward entry process for a country outside the EU/US travel corridor.
Croatia fits slower island-hopping — pet-friendly coastal towns without the compliance complexity of the UK or Australia.
Worth flagging honestly: Australia, Japan, and the UK are wonderful destinations, but their biosecurity rules (titer tests, waiting periods, and in some cases mandatory quarantine) mean they need to be planned six months out, not six weeks. If your pet is coming along, these are trips to build the whole timeline around — not add pet travel to after the fact.
The mistake most owners make is booking the flights first and figuring out the paperwork later. Flip that order, and pet travel stops being the stressful part of the trip. That’s exactly where FlyingCarpet.Travel comes in — we help line up the flights, pet-friendly stays, and transfers around your pet’s timeline, so the logistics get out of the way and the trip gets to be the good part.