Frontier Airlines allows small pets to travel in the cabin on domestic US flights for a $99 each way fee. The carrier must be no larger than 18″ L x 14″ W x 8″ H (45 cm x 35 cm x 20 cm) and fit completely under the seat in front of you.
Frontier does not transport pets as checked baggage or cargo on any route, so in-cabin is your only option. The airline strictly limits the number of pets per flight, so advance planning is essential.
Quick Reference: Frontier Pet Policy
- Allowed: In-cabin only (no cargo)
- Weight Limit: No maximum weight specified, but carrier must fit under seat
- Carrier Size: Maximum 18″ L x 14″ W x 8″ H (45 cm x 35 cm x 20 cm)
- Domestic Fee: $99 each way
- International Fee: Not available (pets not accepted on international routes)
- Booking Method: Phone only at 801-401-9000
- Breed Restrictions: None officially listed
Frontier In-Cabin Pet Policy Overview
Frontier’s pet policy is straightforward but limited. Small dogs, cats, rabbits, guinea pigs, hamsters, and small household birds are allowed in the cabin on domestic US flights. You are allowed one pet carrier per passenger, and it counts as your one allowed personal item.
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The pet must stay inside the carrier, which must be stowed under the seat in front of you for the entire flight.
Pets are not permitted in exit rows or the first row of the cabin. The policy is designed for budget travel, which means fewer frills and stricter enforcement of rules. If your pet does not fit comfortably in the approved carrier under the seat, you cannot fly with them on Frontier.
Weight and Size Limits
Frontier does not specify a maximum weight for the pet and carrier combined. However, the carrier itself has strict size requirements: 18 inches long, 14 inches wide, and 8 inches high (45 cm x 35 cm x 20 cm). It must be soft-sided or hard-sided and fit completely under the seat without blocking the aisle or protruding into your foot space.
The carrier dimensions are non-negotiable. Measure your carrier when it is fully expanded, as a squished or overstuffed carrier may be denied at the gate if it no longer fits under the seat. Test this at home before your trip.
Eligible Animals
Frontier permits the following small, domesticated animals in the cabin:
- Dogs
- Cats
- Rabbits
- Guinea pigs
- Hamsters
- Small household birds (non-exotic)
Reptiles, insects, ferrets, and other exotic animals are not allowed. All pets must be at least 8 weeks old.
Pet Carrier Requirements
Your carrier is your pet’s seat. It must be secure, comfortable, and compliant. Frontier does not sell or provide carriers, so you must bring your own approved kennel.
Approved Carrier Dimensions
The absolute maximum dimensions are 18″ L x 14″ W x 8″ H (45 cm x 35 cm x 20 cm). The carrier must fit completely under the seat in front of you. Both soft-sided and hard-sided carriers are permitted as long as they meet size and ventilation requirements.
Carrier Features Required
Your carrier must have:
- A leak-proof bottom: An absorbent liner or pad is mandatory
- Secure zippers or latches: The pet must not be able to escape
- Adequate ventilation: Mesh sides for airflow are required
- Space for the pet to stand and turn around: This is a general animal welfare requirement
Pro Tip: Label your carrier with your name, phone number, and your pet’s name. Consider a carrier with top and side entry for easier security screening.
Frontier Pet Fees
Frontier charges a flat fee for pet travel. The $99 fee is charged per segment, each way. It must be paid when you add the pet to your reservation, either over the phone or at the airport. This fee is non-refundable if you cancel your flight.
| Route Type | Fee (One Way) | Notes |
|---|---|---|
| Domestic US Flights | $99 USD | Applies to all domestic routes |
| International Flights | Not available | Pets are not accepted on international routes; service animals only |
Verify current fees with Frontier at 801-401-9000 before booking, as pricing may change.
How to Book Pet Travel on Frontier
You cannot add a pet online during booking. All pet reservations must be made by phone.
- Book Your Flight First: Reserve your ticket on Frontier’s website or app.
- Call Frontier Immediately: Dial 801-401-9000 (available 24/7) to speak to a representative. Have your confirmation code ready.
- Provide Pet Details: Inform the agent you need to add a pet in-cabin. They will check if space is available on your flight.
- Pay the Fee: The $99 each way fee will be charged over the phone.
- Get Confirmation: Ensure you receive a confirmation email that notes the pet has been added to your itinerary.
Booking Timeline
Call as soon as you book your own ticket. The airline limits the total number of pets in the cabin, and these spots fill quickly, especially on popular routes. Calling weeks in advance is your best strategy to secure a spot.
Pro Tip: Write down the name of the agent who assists you and the time of your call. If there is any discrepancy at the airport, this record can help resolve it.
Frontier Cargo Pet Policy
Frontier Airlines does not transport pets as checked baggage or cargo. They have no live animal cargo program. This is a major limitation compared to larger network carriers. If your pet is too large for the in-cabin carrier requirements, you cannot fly with them on Frontier and will need to choose an airline that offers cargo transport.
Service Dogs on Frontier
Frontier follows the current U.S. Department of Transportation (DOT) regulations for service animals. A trained service dog for a passenger with a disability travels in the cabin at no charge. Only dogs are accepted as service animals.
The passenger must complete the DOT’s Service Animal Air Transportation Form and submit it to Frontier at least 48 hours before the flight. For flights longer than 8 hours, a Service Animal Relief Attestation Form is also required. These forms are available at https://www.transportation.gov/individuals/aviation-consumer-protection/service-animals and on Frontier’s Special Services page.
The dog must be harnessed or leashed and fit within your footspace. It cannot occupy a seat or protrude into the aisle. The dog is not permitted in bulkhead or exit rows.
Emotional Support Animals
As of January 2021, Frontier no longer recognizes emotional support animals (ESAs) as distinct from pets. This change followed the DOT’s final rule on traveling by air with service animals.
If you have an ESA, it may still travel with you, but it must meet all the standard pet policy requirements: it must fit in an approved carrier under the seat, you must pay the $99 each way pet fee, and it counts toward the limited number of pets allowed in the cabin.
Breed Restrictions
Frontier’s official policy does not publish a list of banned dog or cat breeds for in-cabin travel. The airline reserves the right to refuse transport to any animal that demonstrates aggressive behavior or poses a health or safety risk.
Contact Frontier at 801-401-9000 if you have questions about whether your specific breed is permitted.
Required Documents
For domestic travel within the contiguous United States, Frontier does not require a health certificate from a veterinarian. However, this does not override state or local laws. Your destination may have specific entry requirements for pets, such as a rabies vaccination certificate. It is your responsibility to research and comply with these laws.
For travel to Puerto Rico, a health certificate issued within 30 days before arrival is required. Always check the USDA APHIS website or consult your veterinarian for the latest destination rules.
Recommended documents to carry:
- Current rabies vaccination certificate
- Recent health certificate (if required by your destination)
- A photo of your pet (in case they get lost)
Check-In and Airport Process
Expect the check-in process to take longer when traveling with a pet. You cannot use online or kiosk check-in.
- Arrive Early: Plan to be at the ticket counter at least 2 to 3 hours before departure.
- Check-In at Counter: Present your ID, your pet’s carrier, and any documentation. The agent will verify your pet reservation, collect any unpaid fee, and tag your carrier.
- Security Screening: At the TSA checkpoint, you will carry your pet through the metal detector. The empty carrier will go through the X-ray machine. You may request a private screening if needed.
- At the Gate: Keep your pet securely in the carrier. The gate agent may do a final visual check.
Route-Specific Restrictions
Frontier does not accept pets on international routes. Only trained service animals (dogs) are permitted on international flights with proper documentation for destinations such as Mexico and the Dominican Republic.
If you are traveling on a codeshare flight operated by a partner airline, check that airline’s pet policy directly. Pets are often not available on codeshare flights.
Verify current route restrictions with Frontier at 801-401-9000 before booking.
Frontier Pet Policy Limitations
It is crucial to understand Frontier’s policy constraints before you commit to flying with them.
- No International Pet Travel: Frontier does not accept pets on international routes. Only service dogs are permitted for international travel with proper documentation.
- Limited Capacity: With only a handful of pets allowed per flight, your desired travel date may be unavailable.
- Phone-Only Booking: The inability to add a pet online adds a layer of complexity and wait time.
- No Cargo Option: The small carrier size excludes many medium and large dogs.
Frequently Asked Questions
Can I bring my pet on Frontier Airlines?
Yes, small dogs, cats, rabbits, guinea pigs, hamsters, and small household birds are allowed in-cabin for a $99 fee each way. The carrier must be no larger than 18″ L x 14″ W x 8″ H (45 cm x 35 cm x 20 cm).
How much does Frontier charge for pets?
Frontier charges $99 each way for in-cabin pets on all domestic flights. Pets are not accepted on international routes.
Does Frontier allow pets in cargo?
No. Frontier does not transport pets as checked baggage or cargo. Only in-cabin pets are accepted.
What size carrier does Frontier allow for pets?
The carrier must be 18″ L x 14″ W x 8″ H (45 cm x 35 cm x 20 cm) and fit under the seat in front of you.
Are emotional support animals allowed on Frontier?
No. Frontier no longer accepts emotional support animals. Only trained service animals are permitted. ESAs must travel as regular pets and pay the $99 each way fee.
Can I book my pet online with Frontier?
No. All pet bookings must be made by calling Frontier directly at 801-401-9000. Call as soon as you book your own ticket to secure a spot.
What animals can fly on Frontier?
Dogs, cats, rabbits, guinea pigs, hamsters, and small household birds are allowed, provided they are in an approved carrier that fits under the seat.
How many pets are allowed per Frontier flight?
Frontier limits the total number of pets in the cabin. The exact number is not publicly listed, but space is limited. Only one pet carrier is allowed per passenger.
Can I fly internationally with my pet on Frontier?
No. Frontier does not accept pets on international routes. Only trained service dogs are accommodated on international flights with proper DOT paperwork.
This article is for informational purposes only. Airline pet policies change frequently. Always verify current requirements directly with Frontier before booking.
