How to fly with a dog on United

Cabin up to 9 kg · about €140 per flight

Dog in the cabinYes
Max weight (dog + bag)9 kg
Fee per flight≈ €140
Hold / cargoNo
Rules checkedNovember 2026

Cabin pets on US domestic flights only.

Step by step

  1. Check your dog fits the cabin rulesOn United your dog can fly in the cabin if dog and bag together weigh at most 9 kg. Bigger dogs can't fly with United.
  2. Get a soft carrier that fits under the seatUse a soft, leak-proof bag with ventilation that fits under the seat in front of you. Your dog stays in it for the whole flight.
  3. Book your flight, then add your dog straight awayAirlines only take a few pets per flight. Add the pet to your booking (online or via United's service team) as soon as you've booked – the fee is about €140 per flight.
  4. Get the papers in orderWithin the EU: microchip, rabies vaccination at least 21 days before travel, and an EU pet passport. Outside the EU, check the destination's import rules – some countries need blood tests or months of preparation.
  5. Check where you're flying toThe UK, Ireland, Australia, New Zealand, South Africa, the UAE, Hong Kong and Singapore only let pets arrive as cargo, never in the cabin.
  6. Arrive early and check in at the deskYou can't check in a pet online – go to the counter, show the papers and pay the fee if you haven't yet.

United routes where your dog can fly in the cabin

Frequently asked questions

Can I bring my dog in the cabin on United?

Yes – small dogs fly in the cabin if dog and bag together weigh at most 9 kg. Cabin pets on US domestic flights only.

How much does it cost to fly with a dog on United?

About €140 per flight for a dog in the cabin; it varies by route.

Can my dog fly in the hold on United?

No, United doesn't take pets in the hold.

Can I fly with my dog to the UK on United?

Not in the cabin – the UK only lets pets arrive as cargo.

Rules as of November 2026 and fees are approximate – confirm with United before you book.