JetBlue Dog Flights in 2026: Rules, Fees, Carrier Size and Routes

JetBlue dog flights are in-cabin only. JetBlue Airways carries small dogs and cats under the seat in an FAA-approved carrier no larger than 17 x 12.5 x 8.5 inches. It accepts no large dogs, carries no pets in cargo and allows at most six pets per flight. Independent guides checked in September 2026 report a pet fee of $150 each way. As of October 2026, JetBlue does not fly pets to or from the UK or the EU.

Put simply, a JetBlue dog flight is a booking where your dog rides in the cabin with you, inside a closed carrier, after you pay JetBlue's per-segment pet fee. There is no cargo or checked-pet option. This guide sets out JetBlue's published rules, notes where JetBlue's own documents disagree, and explains the government paperwork from the U.S. Centers for Disease Control and Prevention (CDC) and the United States Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) that applies on international trips.

Byline: Animal Passport editorial team. Last updated: October 1, 2026. Sources: JetBlue's Traveling with Pets help page, JetBlue's Contract of Carriage (version dated July 29, 2026), CDC, USDA APHIS and the European Union's Your Europe portal.

JetBlue dog flight rules at a glance

The table below summarizes JetBlue's published rules as of October 2026. Where JetBlue's documents disagree, both versions are shown.

Which dogs can fly on JetBlue?

JetBlue's Traveling with Pets page (2026) says plainly that the airline accepts "only small dogs and cats" and that "no large dogs are accommodated on JetBlue." JetBlue does not set a breed list or a weight limit. The test is physical: your dog must fit in a carrier within the published size limits and be able to stand up, turn around and move comfortably with the carrier closed.

Some third-party guides cite a 20-pound limit for pet plus carrier. That figure does not appear on the JetBlue help page we reviewed in October 2026. Treat it as unverified and go by the carrier dimensions.

JetBlue's Contract of Carriage (version dated July 29, 2026) says no animals of any kind travel as checked baggage, and only dogs and cats are allowed in the cabin. If your dog cannot fit under the seat, JetBlue will not fly it at any price. You would need a different airline or ground transport.

Service dogs are a separate category

Trained service dogs are not pets under JetBlue's rules. The Contract of Carriage (2026) says JetBlue carries service animals free of charge, up to two per qualified passenger with a disability. They must be harnessed, leashed or tethered and must fit in the passenger's foot space. If you book more than 48 hours before departure, JetBlue requires the U.S. Department of Transportation (DOT) Service Animal Air Transportation Form at least 48 hours in advance. Animals still in training are not carried.

How much does JetBlue charge to fly a dog?

Pet Travel Advisors, an independent pet-relocation publisher, reports a JetBlue pet fee of $150 each way ($300 round trip), checked against JetBlue's published pages in September 2026. You can add the fee in the Extras section during booking or later in Manage Trips, and it can be paid with TrueBlue points before check-in.

Sources differ on how that fee is documented. JetBlue's Contract of Carriage dated July 29, 2026 does not list a dollar amount. It says only that "a fee will apply" and that payment is due when the reservation is made. Older versions of the contract, from August 2020 and September 2021, set the fee at $125 per pet each way. JetBlue's Optional Services and Fees page (October 2026) does not list a pet fee at all. The fee shown at checkout is the binding figure, so confirm it there.

Other costs to plan for:

• Second pet: JetBlue's help page says a second pet needs a second seat and a second pet fee.
• Carrier: JetBlue sells pet carriers at the airport ticket counter for $55 while supplies last, according to its 2026 help page. Card payment only at JFK Terminal 5.
• Paperwork: veterinary certificates for Puerto Rico, the U.S. Virgin Islands or international trips are a separate cost.

What size carrier does JetBlue allow for dogs?

JetBlue's 2026 help page sets one maximum carrier size: 17 inches long x 12.5 inches wide x 8.5 inches high (43.18 x 31.75 x 21.59 cm). The carrier must also:

• Be FAA-approved and fit under the seat in front of you.
• Have a leak-proof bottom and good ventilation.
• Be escape-proof. JetBlue says containers that could allow an escape will not be accepted.
• Hold only one pet.

Soft-sided and hard-sided carriers are both accepted. Height is where most owners get caught out: Pet Travel Advisors (2026) notes that JetBlue's 8.5-inch limit is lower than the 11-inch soft kennel Delta Air Lines recommends. A carrier sold as "airline approved" may still be too tall for JetBlue, so measure it yourself.

Your dog and its carrier count as your personal item, according to JetBlue's 2026 help page. The same page later calls the carrier your "carry-on item," so check your bag allowance before packing a second bag.

How to book a JetBlue dog flight: step by step

1. Measure your dog and carrier. Check the carrier against 17 x 12.5 x 8.5 inches and make sure your dog can stand and turn around inside it with the carrier closed.
2. Book directly with JetBlue on a JetBlue-operated flight. The Contract of Carriage (2026) says codeshare and interline partners have different pet rules (Sections 35 and 36), and independent guides report that JetBlue does not accept pets on those bookings.
3. Add the pet when you book. The contract says the pet fee is due at reservation. With six pets allowed per flight, popular routes can sell out.
4. Choose a permitted seat. JetBlue bars pets from emergency exit rows, bulkhead seats, Mint seats and any seat restricted for under-seat stowage, and recommends a window or aisle seat (help page, 2026).
5. Get the right documents. Use the USDA APHIS pet travel tool for your destination's rules and the CDC rules for entering the U.S. (see below).
6. Check in and get the bag tag. Once the fee is paid, you can check in 24 hours ahead online, in the app or at a kiosk. At the airport, collect a JetPaws® bag tag for the carrier at the full-service counter.
7. Clear TSA security. You hold your dog and walk through screening while the empty carrier is inspected. JetBlue's page says your animal "will never be placed through an x-ray machine."
8. Keep the carrier closed on board. The carrier goes under the seat for taxi, takeoff and landing. During the flight you may hold it on your lap, or put it on a second seat you bought. The dog stays inside the carrier the whole time.

A note on naming: Pet Travel Advisors wrote in September 2026 that the "JetPaws" brand no longer appears on JetBlue's pet pages. However, the JetBlue help page we reviewed on October 1, 2026 still names a "JetPaws® bag tag" at check-in. The name survives at least for the tag.

Where can dogs fly on JetBlue?

JetBlue's 2026 help page says it "accepts pets on all domestic flights." Vaccination rules for travel within the U.S. vary by state, and Puerto Rico and the U.S. Virgin Islands require vaccination documents for pets.

International routes have hard limits. Section 34 of the Contract of Carriage (July 2026) says that:

• Because of local government rules, JetBlue does not carry live animals or pets to Barbados or Trinidad and Tobago.
• For travel to and from the United Kingdom and the European Union, "pets will not be permitted by Carrier." Service animals are carried where the law requires it.

So on JetBlue's transatlantic flights to London, Paris, Amsterdam and other European cities, a pet dog cannot fly in the cabin, whatever paperwork it has.

Documents your dog needs for international JetBlue flights

The Contract of Carriage (2026) makes passengers responsible for meeting destination laws, "including furnishing valid health and rabies vaccination certificates when required." JetBlue's help page points travelers to three official resources: the USDA APHIS pet travel tool, the CDC and the International Air Transport Association (IATA) country database. It notes that the APHIS tool "do[es] not override JetBlue's policies."

Leaving the U.S.: USDA APHIS

USDA APHIS advises owners taking a pet abroad to contact a USDA-accredited veterinarian as soon as they decide to travel (APHIS Pet Travel page, last modified March 20, 2026). That vet helps work out the destination's vaccine, test and treatment requirements and arrange a USDA-endorsed health certificate.

Returning to or entering the U.S.: CDC

APHIS states that the CDC is "the primary authority for dog imports," including dogs returning home. Under CDC rules in force since August 1, 2024, a dog that has been only in dog-rabies-free or low-risk countries for the previous six months needs:

• A CDC Dog Import Form receipt, which is free, one per dog, and valid for six months.
• A microchip readable by a universal scanner.
• A minimum age of 6 months on arrival.
• A healthy appearance on arrival.

Stricter rules apply to dogs that have been in a high-risk rabies country in the past six months. For U.S.-vaccinated dogs, APHIS says this includes a "Certification of U.S.-Issued Rabies Vaccination" form submitted by a USDA-accredited vet before the dog leaves the U.S. Use the CDC Dog Importation Navigator to see which rules apply. The 6-month age minimum matters on JetBlue's Caribbean and Latin American routes: a puppy that JetBlue would accept on board may still be refused entry when it returns to the U.S.

Is an EU pet passport or Animal Passport valid for JetBlue?

These are three different things, and mixing them up causes problems.

• European pet passport. The European Union's Your Europe portal describes it as an EU-standard identification document for dogs, cats and ferrets. It is issued by authorised vets only to owners who live in the EU, and it records the microchip and rabies vaccination. Dogs arriving from outside the EU need an EU animal health certificate instead, issued by an official state vet no more than 10 days before arrival. None of this matters for JetBlue at present, because JetBlue does not carry pets to or from the EU or UK.
• JetBlue pet booking. This is a paid in-cabin reservation, not a health or identity document.
• Animal Passport. Animal Passport is a digital animal and livestock identity record built on muzzle biometrics; an animal's nose print is unique, like a fingerprint. Using a phone, it links the animal to its owner, breed, estimated age, body condition and vaccination history. It is not a government-issued travel document, airline ticket or veterinary certificate. It does not replace a microchip, a CDC Dog Import Form, a USDA-endorsed health certificate or an EU pet passport.

Animal Passport was built for a different problem: proving who owns an animal when paper records fail. In the August 2025 floods in Pakistan, it helped farmers reclaim livestock after paper ear tags washed away. The same tools give an age estimate with a confidence score from a dental photograph, and a body condition score from 1 to 5 from a side-profile photo. Those records support identification and herd management. They do not stand in for the documents an airline or border authority asks for. Read more on the Animal Passport blog.

Practical tips for a smoother JetBlue flight with your dog

• Get your dog used to the carrier weeks ahead. Buying a carrier at the airport counter is a fallback; a dog meeting a carrier for the first time on travel day is more likely to be stressed.
• Plan for toilet breaks. JetBlue's page says pet relief areas vary by airport and you may have to leave and go back through security.
• Bring a second seat if your dog needs space. A purchased extra seat lets the closed carrier sit on that seat during cruise.
• Screenshot your documents. The CDC says the Dog Import Form receipt can be shown on a phone to customs officers or airlines.
• Check again before you fly. JetBlue has updated its Contract of Carriage several times in 2026 (April, June and July versions), so recheck the rules close to departure.

The shortest version of JetBlue's rules: if your dog fits under the seat in a carrier no taller than 8.5 inches and you are not flying to the UK, EU, Barbados or Trinidad and Tobago, JetBlue will probably fly it. If not, it won't.

This article is general information, not legal or veterinary advice. Confirm current requirements with JetBlue, your veterinarian, USDA APHIS and the CDC before you travel.