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Frontier Airlines Approved Pet Carrier Backpack for Dogs and Cats

Frontier airlines pet policy for cat and dog

Frontier Airlines allows pet carriers that meet specific requirements for in-cabin travel.

Here are the key details:

  • The dog or cat carrier must be large enough for the pet to stand, turn around, and lie down naturally.
  • It must fit under the seat in front of you.
  • Soft-sided pet carriers for Frontier Airlines can be up to 18″ x 14″ x 11″. (Can be compressed under the seat of the cabin)
  • Only one adult dog or cat is allowed per carrier.
  • Pets must remain in their carriers at all times during the flight
  • Large pet bird or parrot are not allowed in the cabin

Frontier Airlines Pet Carrier Requirements:

  1. Frontier pet carrier dimensions:
  • Maximum Dimensions: 18″ long x 14″ wide x 8″ tall (must fit under the seat). Your soft-sided pet carrier must be collapsible to fit under the seat of the cabin.
  • Weight Limit: Combined weight of pet + carrier ≤ 20 lbs or 8kg

Design Rules:

  • Soft-sided only (no hard-shell carriers). Frontier only allows soft-sided pet carriers, as they are flexible enough to fit under seats of varying sizes.
  • Ventilation: Mesh panels on at least 2 sides for airflow.
  • Secure Closure: Escape-proof zippers, locks, or straps.
  • Leak-Proof Base: A leak-proof or waterproof bottom is essential to avoid spills or accidents onboard

 

Frontier airlines pet fees

  • Only 1 pet per carrier.
  • Pets must remain inside at all times (no open-top carriers).
  • Fee: $99 each way (max 6 pets per flight; book early) via app. $150 if you pay at the counter.

 

Top 3 Frontier-Approved Pet Carriers

1. JetPaw 5-in-1 Expandable Frontier Pet Carrier

  • JetPaw 5in1 Pet Carrier for Airplane
    JetPaw 5in1 Pet Carrier for Airplane. 

    Why Approved?

    • Regular size: 17.7″ x 11.8″ x 10.2″ but still collapsible to fit under seat
    • Soft-sided is the only material for Frontier airlines approved pet carriers
    • Mesh windows on 3 sides and TSA-friendly zippers.
    • Expandable Feature: While expanded (up to 19.7″ width), it may exceed limits—simply keep it collapsed during the flight for compliance.
    • Ventilation & Security: Mesh panels meet Frontier’s airflow rules.
    • The frontier airlines pet carrier must be escape-proof zippers prevent pet breakouts mid-flight.
    • Soft-Sided & Lightweight: Frontier only allows soft-sided carriers—JetPaw’s flexible fabric qualifies.
      • Weighs just 3.8 lbs, leaving room for your pet under the 20-lb combined limit.
    • TSA-Friendly:
      • Quick-release flaps allow easy security checks without removing your pet.

2. Adventure Cat Backpack – Hiking grade

  • Adventure Cat Carrier @AustriaAlps.  From Netherland to Italy for Holiday Vacation via KLM

    Why Approved?

    • Size Compliance:  Official size is H16.5″ x W11 x  L12 –  17″ x 10″ x 10.5″ (It can be compresses to fit Frontier’s 8″ height rule) with no question from the counter and TSA.
  •  
    • This frontier approved cat carrier is also used on KLM and Turkish Airlines
    • 3in1 function which convert into a cat backpack, a cat front pack and luggage attach carrier for cat
    • Ventilation: Equipped with mesh panels to ensure proper airflow, keeping pets comfortable during travel.
    • Safety Features: Includes secure closures and safety straps to prevent pets from escaping.
    • Comfort: Designed with padded shoulder straps and a supportive back panel for easy carrying.
    • Durable Construction: Made from high-quality, sturdy materials that can withstand travel demands.
    • Easy Access: Features openings that allow for easy entry and exit, which is appreciated during airport security checks.

3. PetAmi Deluxe Backpack

  • Why Frontier airlines approved pet carriers?
    • 16.5″ x 10″ x 10.5″ (within limits).
    • Includes a fleece pad and leash clip.
    • Frontier airlines approved pet carriers
      Frontier airlines approved pet carriers

      The PetAmi Deluxe Backpack features include:

      • Spacious Design: Offers ample room for pets up to 18 pounds, ensuring comfort during travel.
      • Ventilation: Mesh panels provide excellent airflow and visibility for your pet.
      • Safety Features: Includes a safety strap that attaches to your pet’s collar to prevent escape.
      • Comfortable Padding: Features soft, padded back and shoulder straps for easy carrying.
      • Storage Pockets: Multiple pockets for storing treats, toys, and other essentials.
      • Durable Material: Made from high-quality, water-resistant fabric for long-lasting use.
      • Versatile Use: Suitable for hiking, traveling, and everyday use.

 

In-cabin Flight Pet Carriers to Avoid on Frontier

Hard-sided carriers (Frontier bans them).
Oversized/expanded carriers (even if collapsible).
Carriers without ventilation (risk of pet distress).

Pro Tips for Flying Frontier

  • Measure First: Ensure your carrier compresses to ≤8″ height when under the seat.
  • Label It: Add a “Live Animal” tag for visibility.
  • Arrive Early: Check in at the counter (not online) for pet verification.

 

Did the Frontier Airlines measure the pet carrier?

 

Everything went perfectly ok! They didn’t measure the carrier (it was 19in L x 11 in W x 11 in H) and they quite honestly didn’t say anything to me about her before flight, during flight, or after flight.

How much is the Airlines Fee for a cat and its carrier?

A one-ay, directional charge will apply and may be paid in advance during booking. If you do not pay in advance, you’ll need to pay when you check-in your pet.

Are you allowed to bring extra carry-on luggage?

In addition to the travel container for your pet, you are allowed either a personal item (8”H x 14”W x 18”L) or a carry-on bag (10”H x 16”W x 24”L). An additional fee will apply for the carry-on bag.”