United Airlines Pet Fares: How Much It Costs to Fly With a Pet in 2026

United Airlines pet fares are the fees United charges to bring a small dog, cat, or rabbit into the cabin: $150 each way per pet carrier, with an added $150 if a domestic layover runs longer than 4 hours or an international layover longer than 24 hours. United closed its PetSafe cargo program to the general public in 2018, so in-cabin travel is the only option most pet owners have on this airline. Below is the full 2026 breakdown, what the fare does and doesn't cover, and how it differs from the paperwork government agencies require.

United Airlines Pet Fares at a Glance

These figures come from United's published in-cabin pet policy as reported by pet-travel policy aggregators including BringFido and PetTravel.com, which track airline pet fees directly from carrier terms. Because airlines revise fees without much notice, confirm the current fare on United's own pet travel page or by calling reservations before booking.

Why United Doesn't Offer a Public Cargo Option Anymore

United operated PetSafe, a dedicated cargo program for shipping larger pets in the hold, until the airline closed it to the general public in 2018. As of 2026, cargo pet transport on United remains restricted to two groups: active-duty U.S. military traveling under Permanent Change of Station (PCS) orders, and U.S. State Department or Foreign Service employees moving under official orders. Everyone else needing to move a pet too large for the cabin has to use a third-party pet shipping company rather than United directly. This is the single biggest reason United's pet fares now apply almost exclusively to small, in-cabin pets — there's no standard large-pet fare to compare it against.

Emotional Support Animals Now Pay the Same Pet Fare

Before 2021, many airlines let passengers fly with emotional support animals at no extra charge, separate from paid pet fares. That changed under a U.S. Department of Transportation (DOT) final rule amending the Air Carrier Access Act (ACAA), effective January 11, 2021, which allows airlines to define "service animal" narrowly as a dog individually trained to perform tasks for a person with a disability. Emotional support animals, comfort animals, and untrained companion animals no longer qualify for free, unrestricted cabin access under federal rule and can be treated as ordinary pets. In practice, this means an emotional support animal flying with United is now typically subject to the same $150 in-cabin pet fare as any other cabin pet, rather than flying free as it may have before 2021.

What the Pet Fare Covers — and What It Doesn't

United's pet fare is strictly a transport charge for carrying an animal in the cabin. It does not include, and is entirely separate from, any government paperwork a pet may need to legally travel:

• Health certificates for international or some interstate trips are issued by USDA-accredited veterinarians and, where required, endorsed by the United States Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) — not by the airline.
• Rabies documentation and the CDC Dog Import Form receipt required for dogs entering or re-entering the U.S. come from the Centers for Disease Control and Prevention (CDC), which classifies countries as high-risk or low-risk for dog rabies and sets separate rules for each.
• Interstate requirements are set state by state, not by USDA APHIS or the airline — each destination state's animal health official decides what's needed to bring a pet across a state line.

USDA APHIS states plainly that it does not oversee airline cabin fees, aircraft standards, or airline-specific pet policies — those fall under each carrier's own commercial terms. So paying United's $150 pet fare does not satisfy any CDC or USDA requirement, and satisfying CDC or USDA requirements does not waive United's fare. The two are independent costs that a traveling pet owner may owe at the same time.

Where United's Rules Sit Inside the Global Framework

The International Air Transport Association (IATA) publishes the Live Animals Regulations (LAR), the global reference standard airlines use for transporting animals, with a new edition taking effect January 1, 2026. IATA's LAR sets baseline welfare rules — for example, animals should be at least eight weeks old and able to turn around, stand, and lie down naturally in their carrier — but IATA is explicit that individual airlines decide their own fees, breed limits, and whether pets fly in-cabin or as cargo. United's $150 pet fare, its carrier dimensions, and its cargo restrictions are all airline-specific decisions layered on top of the IATA baseline, not requirements IATA itself imposes.

Pet Fares vs. Pet Travel Documents: Don't Confuse the Two

A common point of confusion is treating an airline's pet fare as if it were an official travel document. It isn't. United's fee is a transport charge, similar to a checked-bag fee, and carries no legal weight with customs, USDA APHIS, or the CDC. Genuine pet travel documentation — health certificates, rabies titers, country-specific import permits — comes only from accredited veterinarians and the relevant government agency for the origin or destination country.

This distinction also matters for a different category of animal identification entirely. Animal Passport is a digital identity record for livestock, built around muzzle biometrics — each animal's nose print is unique, similar to a human fingerprint. A phone captures the muzzle print and binds it to a record of the owner, breed, estimated age, body condition score, and vaccination history; the age estimate comes from a dental photograph with a confidence score, and body condition is scored 1–5 from a side-profile photo. This system was used during livestock flood rescue efforts in Pakistan in August 2025, helping farmers reclaim animals after paper ear tags washed away. It is a biometric livestock identity tool, not an airline pet fare, not a government-issued travel document, and not a substitute for a USDA health certificate or CDC import paperwork. Readers researching companion-pet air travel should rely on United, USDA APHIS, and CDC sources for that specific journey; readers working with livestock identity and recordkeeping can find more on the topic at the Animal Passport blog.

How to Budget for a United Pet Trip

1. Confirm your pet and carrier meet United's current in-cabin size and weight rules before booking, since dimensions vary slightly by aircraft.
2. Add the $150 each-way in-cabin fee to your ticket cost, and add a second $150 if your itinerary includes a long layover as defined above.
3. If your pet is too large for the cabin, plan on a third-party pet shipper rather than United, since PetSafe cargo remains closed to the general public.
4. Separately budget for any required health certificate. USDA APHIS endorsement fees start at $101 with no lab tests and rise with additional tests or pets on one certificate.
5. For international trips or re-entry to the U.S. with a dog, check CDC country risk status early, since high-risk-country dogs face added rabies and titer requirements that take time to complete.
6. Call United directly or check its official pet travel page before travel, since airline fees and carrier rules change without much public notice.

Frequently Asked Questions

How much does United Airlines charge to fly with a pet?

United charges $150 each way per pet carrier for in-cabin travel, with an additional $150 if a layover exceeds 4 hours domestically or 24 hours internationally, according to United's published pet policy as tracked by airline pet-travel aggregators.

Does United Airlines still ship pets in cargo?

No, not for the general public. United closed its PetSafe cargo program to ordinary travelers in 2018 and, as of 2026, only allows cargo pet transport for active-duty military on PCS orders and State Department or Foreign Service employees under official orders.

Is the United pet fare charged per pet or per carrier?

It's charged per carrier. If two small pets are approved to share one carrier, you pay one $150 fee for that carrier rather than $150 for each animal.

Do emotional support animals still fly free on United?

Not automatically. Since the DOT's Air Carrier Access Act rule took effect on January 11, 2021, airlines may treat emotional support animals as ordinary pets, meaning they can be charged the same $150 pet fare as any cabin pet rather than flying free.

Does United's pet fee cover the health certificate my pet needs?

No. United's fare covers cabin transport only. Health certificates come from a USDA-accredited veterinarian and, when required, are endorsed by USDA APHIS — this is a separate cost and process from the airline's fee.

What size carrier does United allow in the cabin?

United's published limits are roughly 17.5" x 12" x 9" for hard-sided carriers and 18" x 11" x 11" for soft-sided carriers, with reduced under-seat space on some Boeing 737 MAX 9 aircraft, so it's worth confirming dimensions for your specific route.

Is a United pet fare receipt the same as a pet passport?

No. A United pet fare receipt is proof of payment for cabin transport and has no legal standing with customs or agriculture authorities. Official pet travel documents — health certificates, rabies proof, CDC import forms — come only from accredited veterinarians and government agencies like USDA APHIS or the CDC.

How old must a pet be to fly on United?

United requires pets to be at least 2 months old for domestic flights and at least 4 months old for international flights, per the airline's published age minimums.

Bottom Line

United Airlines pet fares come down to a straightforward, if easy-to-underestimate, structure: $150 each way for an in-cabin pet, plus a possible second $150 for a long layover, with cargo essentially unavailable to the general public since 2018. That fare buys transport only — it says nothing about whether your pet legally qualifies to cross a state or national border. Pair United's fee schedule with USDA APHIS and CDC requirements early in your planning, and keep in mind that airline pet fares, government travel paperwork, and biometric livestock identity tools like Animal Passport are three genuinely different things serving three different purposes.