Travel

Frontier pet fee: what it costs to fly your pet

Here's what Frontier charges to bring your dog or cat along, the main rules to know, and how it compares with other airlines.

Last updated: October 2026 · US prices · 11 sources · see sources

Quick answerFrontier charges $149 per pet each way to fly a small dog or cat in the cabin. The fee is non-refundable, and Frontier doesn't take checked pets.

Prices at a glance

Typical US prices
ItemTypical US priceSrc
Frontier pet fee$149 per pet, each way[1]
Health certificate from a vet (U.S. only, two California clinics)$100–$170[2] [3]

Ranges come from the sources below, and each measures something a little different (store prices, surveys or budgets). Prices vary by area, so check locally before you commit.

Good to know

Non-refundable. Frontier doesn't accept checked pets. [1]

Policies change, so check with Frontier when you book and reserve your pet's spot early.

Health certificate

Many airlines and states ask for a health certificate, and pets crossing state lines usually need one even by car [4]. One California clinic charges $100 for a U.S.-only certificate, and another charges $170 [2] [3]. See health certificate costs.

How it compares

Pet fees by airline, one way (checked Oct 2026)
AirlineIn-cabin pet feeGood to know
Delta$150 each way (US, Canada, Puerto Rico, USVI); $200 international [5]Fee applies to tickets issued on or after April 8, 2025 ($95 before that). Brazil is $200. Pets aren't allowed in the cabin to or from some destinations, such as Australia.
American Airlines$150 per kennel, carry-on [6]Checked pets ($200) are only for active-duty U.S. military and U.S. State Department travelers on orders. Cargo fees vary. Service animals fly free.
United$150 each way [7]In-cabin only, and only cats and dogs. Pets can't fly in the cabin to or from Hawaii.
Southwest$125 per carrier (US mainland); $35 between Hawaiian islands [8] [9]Up to two pets of the same species can share a carrier. No cargo or checked pets. The pet fee is refunded if you cancel. Southwest sells a pet carrier for $58.
Alaska and Hawaiian$100–$200 each way, per kennel [10]The price depends on the type of travel (cabin or baggage compartment) and route. Trained service animals fly free.
Frontier$149 per pet, each way [1]Non-refundable. Frontier doesn't accept checked pets.
JetBlueNot listed on its pet page [11]Small cats and dogs in the cabin only, carrier up to 17 x 12.5 x 8.5 inches. JetBlue sells a carrier for $55. Check the fee when you book.

Common questions

How much does Frontier charge for pets?

$149 per pet, each way. Fees are charged each way.

Is the Frontier pet fee round trip?

No. It's charged each way, so a round trip costs twice the fee.

All airline pet feesHealth certificate costDelta pet feeAmerican Airlines pet feeUnited pet feeTravel, housing and paperwork
Sources (11) — tap to show
  1. Frontier Airlines – Optional services and fees
  2. South Pasadena Animal Hospital (Alhambra, CA) – Published prices
  3. Southpaw Vets (Los Angeles) – Pricing
  4. AVMA – Holiday pet safety (travel)
  5. Delta – Traveling with pets (in-cabin pet fees)
  6. American Airlines – Traveling with pets
  7. United Airlines – Traveling with pets
  8. Southwest Airlines – Travel fees
  9. Southwest Airlines – Pet policy
  10. Alaska Airlines – Traveling with pets
  11. JetBlue – Traveling with pets