On United Airlines flights, pets are permitted in the cabin provided they fit comfortably in a carrier under the seat in front of you. In-cabin pet travel is booked on a space-available basis, so it is imperative you get your reservation in as soon as possible. Any pauses in United’s PetSafe program mean that those who would normally travel as cargo may try to book in-cabin tickets, increasing competition for pet spots aboard popular flights. 

United Airlines pet policies are committed to accommodating passengers and pets within the cabin, but they also prioritize the safety of everyone onboard. To make sure you can successfully fly with a pet in the cabin on United Airlines, here is the information you need. 



How much does it cost to fly a carry-on pet on United Airlines?
$125 each way. An additional $125 will be charged for each stopover of more than four hours. 


How many animals/pets are allowed on each flight?
The number is variable and dependent upon aircraft and flight. 


What animals are allowed on United Airlines?
Domesticated cats, dogs, and rabbits. 


What is the maximum carrier size?
Hard-sided kennels may not be more than 17.5”L x 12”W x 7.5”H. Soft-sided kennels may not be more than 18”L x 11”W x 11”H. 


What pet travel forms are required?
There are no current requirements for domestic flights. International flight documentation varies by location.  


Are there seat restrictions? 
Passengers accompanying animals may not sit in the bulkhead or emergency exit rows. 


How to Book a Reservation for Carry-On Pets with United Airlines 

When making a reservation online, you will have the option to add a pet. The $125 service fee will be charged at the time of booking. You may also book your pet travel and ask additional questions by calling the United Customer Contact Center at 1-800-UNITED-1 (1-800-864-8331). Pet space availability is limited and dependent on your aircraft and flight, so it is important to reserve your pet’s space as soon as possible. 


Other Types of Pet and Animal Travel with United Airlines 


More FAQ Information for Pets in the Cabin 

How do I check in for my flight?
Upon entering the airport, you will be prompted to see an agent at the flight check-in counter. You will then be directed to the United customer service counter in the airport lobby, where you will receive a brightly-colored yellow bag tag to attach to your pet’s kennel. You should then proceed through airport security as usual but be aware that TSA may require you to remove your animal from the carrier. 


Should I know about any animal courtesy protocol?
Your pet is expected to remain in the kennel while in the airport and while on board the aircraft. The carrier must remain in the floor space below your seat, and its doors should be secured at all times. 


What are United’s carry-on carrier restrictions?
Traveling pets must be carried in an approved hard- or soft-sided kennel, which must fit completely under the seat in front of the customer. The maximum dimensions for hard-sided kennels are 17.5”L x 12”W x 7.5”H, while those for soft-sided kennels are 18”L x 11”W x 11”H. Soft-sided pet carriers may exceed these dimensions slightly, as they are collapsible and able to conform to under-seat space without blocking the aisle. United Airlines allows one pet per kennel, and he must be able to stand up and turn around comfortably.


Are there any age-related restrictions?
Yes—puppies and kittens traveling within the U.S. and Puerto Rico must be at least two months (8 weeks) old to be accepted for travel on United. Puppies and kittens traveling internationally must be at least four months (16 weeks) of age to be accepted for travel. To that end, pets are not permitted to travel with unaccompanied minors.  


Can pets travel internationally?
Yes, but pets are not permitted on flights to, from, or through Australia, Hawaii, and New Zealand. Other countries and islands may be restricted, so we recommend verifying if your specific destination allows in-cabin pets prior to travel.  


Are there any other carry-on pet travel restrictions?
Just two pets are allowed per flight within United’s premium cabins on select aircrafts. However, pets are not permitted in the premium cabins on Boeing 757, 767, 777, or 787 due to limited storage space under the seat. Additionally, four pets per flight are allowed in United Economy on all United flights, but customers traveling with pets on Boeing 757-200 aircraft will need to be seated in a window seat due to limited storage space.