Flying with a dog or cat on Frontier Airlines: small pets can fly in the cabin ($149 each way), and there is no hold or cargo option. Each answer links to Frontier Airlines's own page.
Domesticated dogs, cats, rabbits, guinea pigs, hamsters and small household birds can fly in the cabin on flights within the US. One pet per passenger; dogs and cats must be at least 8 weeks old. Frontier does not accept new pets for international travel.
Source: Frontier — Family & pets
$149 per pet, per direction, non-refundable.
Source: Frontier — Optional services
Hard-sided carriers up to 18" x 14" x 8"; soft-sided (recommended) up to 18" x 14" x 11". It must fit under the seat in front of you.
Source: Frontier — Family & pets
Frontier does not allow pets to be checked as baggage.
Source: Frontier — Family & pets
Whatever the airline, the CDC requires every dog entering or returning to the US to be at least 6 months old, microchipped, healthy, and to travel with a CDC Dog Import Form receipt.
The CDC dog import rule, step by step →Airlines change pet fees and rules often, and limits can depend on the aircraft. Always confirm with Frontier Airlines when you book — the linked pages are the final word.
