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United Airlines Pet Policy: Flying to Florida With a Dog or Cat

United is simple for small dogs and cats: under-seat carrier, $150 each way, and pet availability visible while you search flights.

Updated September 7, 2026 4 min read By

United’s current pet policy is straightforward for small dogs and cats:

They travel in the cabin with you, space permitting.

United currently charges:

$150 each way.

That makes a typical domestic round trip to Florida:

$300 in pet fees.

United Pet Policy at a Glance

United currently allows ordinary in-cabin travel for:

  • Dogs
  • Cats

The airline’s booking system permits one pet per adult or senior passenger in a reservation, subject to additional restrictions and available space.

The pet:

  • Travels inside an approved carrier
  • Remains under the seat
  • Must fit comfortably
  • Requires a separate $150 one-way pet ticket

How Much Does United Charge?

United currently lists the ordinary cabin-pet ticket at:

$150 each way.

So:

Outbound: $150 Return: $150 Round trip: $300

That needs to be included when comparing United with cheaper pet carriers such as Allegiant.

Which Animals Can Travel?

United’s current ordinary in-cabin program is for:

  • Dogs
  • Cats

Don’t assume older information mentioning additional species is still current.

United Hard-Sided Carrier Size

United currently lists a maximum hard-sided carrier size of approximately:

17.5 x 12 x 7.5 inches on its saved-pet interface.

United Soft-Sided Carrier Size

United’s soft-sided carrier allowance is approximately:

18 x 11 x 11 inches.

Soft carriers are generally easier for under-seat travel because they have some flexibility.

But “soft” doesn’t mean you should crush the carrier until the dog barely fits.

The Pet Must Fit Under the Seat

Carrier dimensions are only half the equation.

The carrier has to fit:

Under the seat in front of you.

The animal must remain comfortably contained during travel.

Different aircraft can have different under-seat geometry, so check the actual aircraft when your carrier is close to the maximum dimensions.

Add the Pet While Booking

One particularly useful United feature is that the normal flight-search process includes a Pets in cabin selection.

United currently allows travelers to indicate the number of pets during flight search.

That’s better than buying your ticket first and discovering later that the flight’s pet quota is full.

One Pet Per Adult or Senior

United’s current reservation interface says it allows:

One pet per adult or senior in a reservation, subject to its other restrictions.

For households traveling with multiple animals, build the passenger/pet arrangement before booking.

No Normal Checked-Pet Option

United’s present leisure pet program focuses on cabin travel.

If your dog cannot fit underneath the seat, do not assume you can simply check the animal like a suitcase.

That makes United primarily useful for small dogs and cats.

Large Dogs

For an ordinary large pet, United is not a simple airline solution.

Your alternatives may include:

  • Driving
  • Specialized pet transportation
  • Another airline with an appropriate animal-transport program

For many Florida trips, driving is ultimately easier.

Florida Connections

United can be particularly useful for Florida travelers connecting through hubs such as:

  • Newark
  • Washington Dulles
  • Chicago
  • Houston
  • Denver

But when traveling with a pet, a nonstop flight often beats a theoretically cheaper connection.

Every connection means:

  • More carrier time
  • More airport time
  • More opportunities for delay

Compare the Entire Trip

Suppose:

United

Airfare: $180 Pet fee: $150 Total before other extras: $330

Another Airline

Airfare: $220 Pet fee: $50 Total: $270

A lower airfare doesn’t automatically mean lower travel cost.

Pet fees can completely change the comparison.

Choose the Flight Before the Carrier

Don’t search Amazon for “United approved pet carrier” and assume you’re finished.

Do this instead:

  1. Find the United itinerary.
  2. Check aircraft.
  3. Confirm pet space.
  4. Confirm current carrier limits.
  5. Measure your pet.
  6. Buy the carrier.

“Airline approved” is mostly marketing unless the dimensions match your actual airline.

Train the Pet Before Flying

Leave the carrier open around the house.

Use:

  • Familiar bedding
  • Treats
  • Short practice periods

The goal is for the carrier to become normal before travel day.

A dog encountering the carrier for the first time in an airport is starting the trip at a disadvantage.

Airport Pet Relief

Know where relief areas are located:

  • At departure
  • At any connection
  • At your Florida arrival airport

If you have a tight connection, locating the nearest relief area in advance can matter.

Don’t Overfeed Before Departure

A giant meal immediately before several hours inside a carrier isn’t ideal.

Ask your veterinarian about appropriate feeding timing for your particular pet.

Keep fresh water available as appropriate.

Don’t Sedate the Pet on Your Own

If your animal has serious travel anxiety, talk with your veterinarian well before flying.

Don’t improvise with:

  • Human medications
  • Old prescriptions
  • Someone else’s sedatives

The safest plan depends on the animal.

Service Dogs

Service dogs follow a separate federal air-travel process.

They are not ordinary $150 cabin pets.

See:

for more on the distinction between:

  • Service dog
  • Emotional-support animal
  • Pet

Florida Heat After the Flight

Once you land, the pet has probably spent hours in a carrier.

Give it:

  • Water
  • Bathroom break
  • Time to decompress

Do not leave the animal in a parked Florida car while handling luggage, groceries or lunch.

Is United Good for Florida Pet Travel?

Good Choice When:

  • Your pet is small.
  • United offers a nonstop.
  • The carrier comfortably fits.
  • You prefer to add the pet during booking.

Less Attractive When:

  • Your dog is large.
  • $300 round-trip pet cost makes another carrier significantly cheaper.
  • Your itinerary requires several connections.

United Pet Policy Bottom Line

United’s current ordinary pet program is simple:

Small dog or cat + under-seat carrier + $150 each way.

The biggest advantage is being able to incorporate pet availability directly into the flight search.

The biggest limitation is the same one shared by many airlines:

If your dog can’t comfortably fit under the seat, this program isn’t for you.

More Airline Pet Policies

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