Glossary

Airline pet carrier

A carrier that meets an airline's size and construction rules for a dog travelling in the cabin under a seat, or in a larger hard crate in the hold.

Also called: airline approved carrier, in-cabin carrier, under-seat carrier, cargo crate, IATA crate, flying with a dog, pet carrier, in-cabin pet

An airline pet carrier is a crate or bag that meets the rules of the airline for carrying a dog. Small dogs can often travel in the cabin in a soft-sided carrier that fits under the seat, and the dog must be able to stand, turn around and lie down. Weight limits, sizes and fees differ by airline.

Larger dogs travel in the cargo hold in a hard-sided crate that meets the standards of the International Air Transport Association, with a metal door, ventilation on several sides and a water dish. Many airlines refuse certain breeds in cargo, especially brachycephalic ones, and set temperature limits in hot or cold weather.

Check the airline's current rules before you buy, since requirements change. A health certificate may be needed, and international trips have their own rules. For road travel see travel crate.

Last reviewed November 8, 2026

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Related terms

Travel crate A sturdy, ventilated crate used to carry or secure a dog in a vehicle or for transport, built to stay closed in a collision. Dog crate A box or cage that provides a dog with a safe, enclosed space at home or in a car; it should be large enough to stand, turn and lie down in. Brachycephalic Having a short, broad skull and flattened muzzle, as in the Pug, Bulldog and French Bulldog, which can narrow the airway and affect breathing and cooling. Dog stroller A wheeled carrier that lets you push a small, older or injured dog, designed for dogs that cannot walk far, not as a replacement for exercise.