Last updated: September 8, 2026 · Pet rules and fees change — confirm current details on United’s official pet page before you book.
Quick answer
United flies pets in-cabin only (no cargo since 2018) for $150 each way per pet. Small dogs, cats and rabbits ride in a soft carrier 18 x 11 x 11 in (or hard 17.5 x 12 x 7.5 in) under the seat. Because it’s cabin-only, there are no breed restrictions — snub-nosed dogs are fine if they fit.
In-cabin fee
$150 each way, per pet. A round trip with one pet is $300 in pet fees on top of your fare.
Carrier sizes
- Soft-sided: up to 18 x 11 x 11 in
- Hard-sided: up to 17.5 x 12 x 7.5 in
The carrier must fit and stay under the seat in front of you for the whole flight.
Cabin-only = no breed ban
United doesn’t ship pets in cargo for the public, so there are no breed restrictions. Bring up to two pets per person (two carriers, two seats). Minimum age: 2 months domestic, 6 months international.
Frequently asked questions
How much is United's in-cabin pet fee?
$150 each way, per pet — so a round trip with one pet is $300 in pet fees on top of your ticket.
Does United ship pets in cargo?
No. United suspended its PetSafe cargo program in 2018, so general-public cargo isn’t available — pets travel in-cabin only (military/State Dept relocations excepted).
What size carrier does United allow?
Soft-sided up to 18 x 11 x 11 in, or hard-sided up to 17.5 x 12 x 7.5 in, stowed under the seat in front of you.
Are snub-nosed breeds allowed on United?
Yes. Because United only flies pets in-cabin, there are no breed restrictions — pugs, French bulldogs and Boston terriers are welcome if they fit the carrier.
How many pets can I bring on United?
Up to two per person, but two pets need two carriers and you must buy two seats. Puppies/kittens must be 2 months old (domestic) or 6 months (international).
Related resources
Delta baggage policyUnaccompanied minor policiesCompare flights & book by phone
Flying with a pet on United?
Our US-based advisors can confirm the pet space is available on your dates, book the fare and the pet fee together, and flag carrier and health rules — one call, no booking fees.
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