

Frontier Airlines allows a variety of small petsâincluding dogs, cats, rabbits, guinea pigs, hamsters, and small household birdsâto travel in the cabin on domestic U.S. flights, making it one of the more pet-friendly carriers. For international travel, only dogs and cats are accepted on flights to and from Mexico and the Dominican Republic. Frontier charges a $99 pet fee each way, and reservations should be made as early as possible since space is limited. All pets must remain inside an FAA-approved, well-ventilated carrier that fits under the seat in front of you. While most domestic routes do not require health certificates, international flights may require a valid rabies certificate and vet documentation. Frontier does not transport pets in the cargo hold, so only in-cabin pet travel is available. For help with adding a pet, confirming requirements, or reviewing documentation rules, you can contact Frontier Airlines customer support at 1-833-534-2451.
Frontier Airlines offers one of the most flexible in-cabin pet programs in the U.S. Small household petsâincluding dogs, cats, rabbits, guinea pigs, hamsters, and small household birdsâare allowed to travel in the cabin on domestic flights. For international routes, only dogs and cats are eligible. Frontier charges a $99 pet fee each way, and space is limited, so early booking is recommended. You can call 1-833-534-2451 for quick assistance with reservations or requirements.
đŸ Pets Allowed on Frontier Airlines
Domestic Flights (Within the U.S.)
The following pets are permitted in the cabin on domestic flights:
Dogs
Cats
Rabbits
Guinea pigs
Hamsters
Small household birds (excluding large parrots)
International Flights
Only the following pets are allowed internationally to/from:
Mexico
Dominican Republic
Allowed Pets:
Dogs
Cats
For eligibility questions, call 1-833-534-2451.
đ¶ Pet Fee
Frontier charges $99 each way for all in-cabin pets.
The fee applies per pet, per direction.
To confirm the pet fee for your specific route, call 1-833-534-2451.
âïž In-Cabin Pet Requirements
Pets must travel in an FAA-approved soft-sided or hard-sided carrier.
Carrier must fit under the seat in front of you.
Pet must remain inside the carrier for the entire flight.
Only one pet carrier per passenger is allowed.
The carrier must be well-ventilated, secure, and leak-proof.
Size Guidelines
Frontier does not list strict dimensions but requires that:
The carrier fits comfortably under the seat
Your pet must be able to stand, turn around, and lie down naturally
For carrier size confirmation, call 1-833-534-2451.
â ïž Important Restrictions
Pets are not transported in the cargo hold on Frontier Airlines.
Birds are not allowed on international flights.
Frontier does not allow emotional support animals as service animals; only trained service dogs qualify.
For breed or destination restrictions, call 1-833-534-2451.
đ Documentation Requirements
Domestic Flights
No health certificate required for most U.S. routes
Some states may have specific rules for birds or exotic pets
International Flights
For Mexico & Dominican Republic:
Valid rabies vaccination certificate
Health certificate from a licensed veterinarian
Additional country-specific requirements may apply
Get document guidance at 1-833-534-2451.
đ How to Book Pet Travel on Frontier
Book your flight online or by phone
Immediately add your pet reservation by calling 1-833-534-2451
Prepare all documents and an approved carrier
Arrive at the airport at least 2 hours early
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