Flying with a Pet
Cabin vs. cargo rules, carrier sizing, airline pet fees, and vet paperwork by destination.
Cabin vs. cargo — know before you book
Small pets in an airline-approved soft carrier can often fly in the cabin under the seat in front of you, usually up to around 20 lb (9 kg) combined with the carrier. Larger pets may need to fly as cargo or checked baggage — confirm early, since most airlines cap how many pets are allowed in the cabin per flight.
Carrier sizing and comfort
Your carrier needs to fit fully under the seat in front of you, so check your specific aircraft's under-seat dimensions where possible. Let your pet get used to the carrier for a few weeks before the trip, and avoid a big meal right before flying to reduce motion sickness.
Fees and required paperwork
Pet fees are charged separately from your ticket, often in the $95–200 USD range each way. You'll typically need a recent health certificate from your vet (often within 10 days of travel) and proof of vaccinations — international trips can add country-specific import permits, so start this well ahead of departure.
Breed and temperature restrictions
Many airlines restrict or ban snub-nosed (brachycephalic) breeds like bulldogs and pugs from cargo due to breathing risk, and pause pet cargo during extreme heat. Call the airline's dedicated pet desk directly — the general reservations line often doesn't have full answers.