How traveling with a pet on Frontier generally works
General guidance. Pet travel has strict, route-specific rules — always confirm the details for your exact trip.
Frontier carries small domesticated pets in the cabin in an approved carrier that fits under the seat in front of you. As an ultra-low-cost carrier it doesn't offer a checked or cargo pet service, so confirm your pet and route qualify.
Pet spaces per flight are limited and can't be added last-minute. Arrange it as early as possible — well before you get to the airport — since Frontier can't be reached by phone to fix it on the day.
Your carrier must meet Frontier's size and ventilation rules and your pet must fit and turn around comfortably inside, staying in the carrier for the flight. The wrong carrier can mean being turned away.
International routes to Mexico, Central America and the Caribbean often require vaccination records, health certificates and sometimes import permits. These take time to obtain, so start early.
Trained service animals follow separate rules from pets. Tell us your situation and we'll route it correctly on the booking.
Pet charges, accepted animals, carrier limits and country entry rules vary by route and change often — we never guess them, and Frontier has no phone line to ask. Call us with your trip and pet details and we'll confirm what's possible and book the space.
Pet travel on Frontier at a glance
General guidance — always confirm the exact rules for your route and pet.
Book the pet space first, buy the carrier second. Spaces per flight are limited and can't be added last-minute — and Frontier has no phone line to fix it on the day. Confirm your pet is accepted on the route before you invest in a carrier and vet paperwork.
Frequently asked
Can my dog fly in the cabin with me on Frontier?+
Does Frontier put pets in cargo?+
What documents does my pet need?+
Do you charge to arrange pet travel?+
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