Handing the dog off to a sitter used to be the default. Not anymore. With roughly two-thirds of US households now owning a pet, airlines have read the room, and a growing number will let a small cat or dog ride in the cabin at your feet — while others handle bigger animals as checked baggage or cargo. The complication is that no two airlines do it the same way: the fee, the carrier size, where your pet can sit, even which species are allowed all vary, and the rules get rewritten more often than you’d think. So this guide lays the most pet-friendly airlines side by side — US and international — by where your pet can travel, what it’ll cost, and the carrier rules, then covers how to prepare and the paperwork you can’t skip.
Pet-Friendly Airlines at a Glance
The whole shortlist, side by side.
| Airline | In-cabin? | Checked/Cargo? | Notes |
| American Airlines | Yes (small cats/dogs) | Cargo (Pet Embark) | Carrier under the seat |
| Delta Air Lines | Yes (small cats/dogs) | Cargo | “birds” claim |
| United Airlines | Yes (small cats/dogs) | Cargo | 1 pet per passenger |
| JetBlue | Yes (small cats/dogs) | No | Up to 2 pets/person, own carriers |
| Southwest | Yes (small cats/dogs) | No | US only; often cheapest fee |
| Alaska Airlines | Yes | Checked/cargo | Broad options |
| Spirit | Yes (small pets) | No | ranked 3rd highly pet-friendly |
| Turkish Airlines | Yes (cats/dogs/some birds) | Checked/cargo | Low fees; many species |
| Lufthansa | Yes (small) | Checked/cargo | Strong international/large-pet options |
| Air France / KLM | Yes (small) | Checked/cargo | Popular for Europe |
| Qatar Airways | Limited cabin | Cargo | Best for long routes/large pets |
| Korean Air | Yes | Checked | Comprehensive Asia program |
Best US Airlines for Pets
The big US carriers all share the same basic deal — a small cat or dog, in a soft-sided carrier that slides under the seat in front of you — but the fine print is where they part ways.
- American Airlines — small cats and dogs in the cabin on many routes, with larger animals routed through its cargo program.
- Delta Air Lines — small cats and dogs in the cabin; cargo for the bigger ones.
- United Airlines — small cats and dogs, one pet per passenger.
- JetBlue — small cats and dogs, and unusually, up to two pets per person (each in its own carrier).
- Southwest — small cats and dogs in the cabin, US flights only, and often the cheapest pet fee going.
- Alaska Airlines — one of the more flexible US options, spanning cabin, checked, and cargo.
- Spirit — small pets in the cabin; worth flagging that an industry study has ranked Spirit among the most pet-friendly airlines, so don’t write it off.
A caveat that catches people out: most US carriers only take pets on domestic or select international routes, and none accept them as checked baggage on every flight — so confirm it for your exact route, not just the airline in general.
Best International Airlines for Pets
Fly beyond the US and the picture shifts — several international carriers run genuinely strong pet programs, and some take a wider range of species and larger animals than their American counterparts.
- Turkish Airlines — a regular at the top of pet-friendliness rankings, with low fees and room for more than just cats and dogs (small birds included).
- Lufthansa — trusted for cabin and checked/cargo alike, and a go-to for larger dogs.
- Air France / KLM — the dependable pair for flying with a pet around Europe.
- Qatar Airways — the one to look at for long-haul and larger pets via cargo.
- Korean Air — among Asia’s most comprehensive programs, covering both cabin and checked.
- All Nippon Airways (ANA) / Japan Airlines — highly rated across Asia, and notable for accepting an unusually broad list of species.
Cabin vs Checked vs Cargo: Which Is Right?
It comes down mostly to your pet’s size:
- In cabin — for small cats and dogs that fit in a carrier under the seat. Far and away the least stressful route: your pet stays with you, dodges cargo-hold temperatures, and there’s no waiting at baggage claim to reunite. Airlines cap how many in-cabin pets each flight takes, so book the moment you can.
- Checked baggage — for pets too big for the cabin but flying on your flight, down in the hold. Fewer airlines still offer it, and it comes with weather and breed limits.
- Cargo — for large pets or full international moves, booked separately (often through a program like American’s Pet Embark, or a dedicated pet-transport company). It’s climate-controlled, but also the priciest and most paperwork-heavy option.
Documents & International Rules
Here’s the part that trips up first-timers: international pet travel is less about the flight and more about the paperwork — and those rules are set by governments, not the airline. Sort these before you book anything:
- Health certificate — most airlines and destinations want a vet-issued certificate, typically dated within about 10 days of travel.
- Vaccinations & microchip — rabies vaccination and an ISO microchip are the usual baseline, and some destinations insist the microchip goes in before the rabies shot, or it doesn’t count.
- Quarantine — a handful of countries (and even Hawaii) still require quarantine on arrival, so check early enough to plan around it.
- Region-specific schemes — the EU, for instance, runs its own pet-entry and passport system.
For the requirements that actually matter, go straight to the source: the USDA APHIS Pet Travel hub for US import/export, and the AVMA’s guidance on travel health certificates for the vet paperwork.
How to Prepare for the Flight
A bit of groundwork turns a fraught day into a manageable one:
- Read the airline’s pet policy in full — then book your pet’s spot early, because most flights cap the number of pets on board.
- See the vet for the health certificate and any required shots, timed to the airline’s window.
- Check breed rules if yours is a snub-nosed breed.
- Get a compliant carrier — soft-sided, under-seat-sized, well-ventilated, comfortable, and escape-proof.
- Fly direct if you possibly can — less time in transit is less stress for your pet.
On the day: arrive early, walk your pet before you go in, feed lightly a few hours ahead, and tuck a familiar blanket or toy into the carrier. In the air, keep the carrier zipped and under the seat, stay calm yourself (your pet takes its cue from you), and offer water before and after the flight.
Alternatives to Flying
Sometimes the plane isn’t the answer:
- Pet transport services — specialists who handle the whole logistics chain, especially for international moves.
- Driving — usually far gentler on a pet for shorter distances.
- Pet-friendly hotels — line them up in advance so the trip stays smooth end to end.
Staying Connected While You Travel
One small practical aside for the trip itself: between finding your way through an unfamiliar airport, pulling up your pet’s documents when someone asks for them, and booking a pet-friendly cab at the other end, you’ll be leaning on your phone. A travel eSIM from Airhub keeps you online without roaming fees, set up before you’ve even left home.
FAQs
1. Which airlines allow pets in the cabin?
Most major US carriers — American, Delta, United, JetBlue, Southwest, Alaska — take small cats and dogs in the cabin, as do international carriers like Turkish, Lufthansa, Air France/KLM, and Korean Air. Confirm the current policy for your specific route.
2. Can pets fly in the cabin internationally?
Some can — several international carriers allow small pets in the cabin — but plenty of long-haul routes and destination rules push larger pets to cargo, and some countries require quarantine. Check both the airline and the destination.
3. Which airline has the cheapest pet fee?
Fees move around, but the budget carriers (Southwest gets named a lot) and some international airlines like Turkish tend to sit at the lower end.
4. Can I bring more than one pet?
Sometimes — a few airlines (JetBlue among them) allow two pets per passenger, each in its own carrier.
5. Can I make calls abroad on a travel eSIM?
Most travel eSIMs are data-only, but some include voice — if you’ll want to phone a vet, hotel, or airline directly, pick an esim with data and voice calls rather than a data-only plan.
6. What if my pet is too big for the cabin?
Then it travels as checked baggage (where that’s offered) or cargo, or with a dedicated pet-transport service — and remember snub-nosed breeds may be barred from the hold.
7. How do I book my pet on a flight?
Book early, online or by phone, since in-cabin spots are capped per flight. Have your carrier’s dimensions and your pet’s documents to hand when you do.
8. How do I stay connected while travelling with my pet?
A travel esim lets you set up data before you fly and land already online — handy for maps, documents, and calling ahead — with no roaming bill.
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