Flying with a Cat in the Cabin: The Complete Step-by-Step Guide

Flying with a cat in the cabin is genuinely possible and far less stressful than cargo for both you and the cat, if the cat and carrier meet the requirements. Here is how to make it work.

Which airlines allow cats in cabin

Not all airlines accept cats in cabin on international routes. Those that commonly do include: Lufthansa, Air France, KLM, Turkish Airlines, Iberia, Finnair, TAP Air Portugal, and many US carriers (American, Delta, United, JetBlue) on domestic routes. Long-haul carriers are more restrictive. Always confirm in advance.

Weight and size limits

Most airlines set a maximum combined weight of 6-8kg (cat plus carrier). Soft-sided carriers typically weigh 1-2kg, leaving room for most adult cats.

The carrier

Choose a soft-sided carrier that:

  • Fits under the seat in front (check your specific aircraft’s under-seat dimensions - they vary by seat class and aircraft type)
  • Has a ventilated mesh panel for airflow
  • Has a waterproof base (accidents can happen)
  • Has a zip or clip closure that is secure

Measure under-seat space for your specific flight - it varies significantly between airlines and aircraft types.

Preparing your cat

Start leaving the carrier open at home weeks before travel. Let the cat explore and sleep in it. Feed meals inside the carrier. By the time of travel, the carrier should be a familiar, safe space rather than a threat.

On travel day:

  • Withhold food for 3-4 hours before departure
  • Provide water up to 1-2 hours before
  • Do not use a litter tray in the carrier for in-cabin travel - it creates odour issues for other passengers

At the airport

Go through check-in with the carrier visible. Declare your pet if required. At security, hold your cat while the carrier goes through the X-ray. This is the most stressful moment for most cats - hold firmly, move quickly, get the carrier back on as fast as possible.

During the flight

The cat must remain in the carrier under the seat throughout the flight. Most cats settle after take-off once the noise stabilises. Talking to your cat quietly can be reassuring. Do not open the carrier during the flight.

Frequently Asked Questions

Most airlines limit in-cabin pets to a combined weight (cat plus carrier) of 6-8kg. Cats typically weigh 4-6kg, and a soft carrier adds 1-2kg, so many cats qualify. Confirm the specific limit with your airline before booking.

A soft-sided carrier that fits under the seat in front. Typical approved dimensions are approximately 43 x 30 x 20cm (though airlines vary). The carrier must be leak-proof and well-ventilated. Do not use a hard-sided plastic crate for cabin travel.

It depends on the airline and route. Some airlines permit cats in cabin on international routes; others restrict cabin pets to domestic routes only. Airlines like Lufthansa, Air France, KLM, and Turkish Airlines accept cats in cabin on qualifying international routes. Always confirm with the specific airline for your route.

At most airports, you will need to remove your cat from the carrier and carry them through the body scanner (or be taken aside for a wand check) while the empty carrier goes through the X-ray machine. Hold your cat firmly during this process. Ask a security officer for assistance if needed.

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