Does United allow pets in cargo? United Airlines no longer accepts pets as cargo on their passenger flights, with a few exceptions. This means you cannot book your furry friend to travel separately. There can only be one pet per carrier, and they must be able to stand up and turn around while inside. Small dogs and cats (under 20 pounds) can travel in a carrier under your seat on most United flights. For more information about United Pet Policy Cargo, you can visit the Airlines Pet Policy. Visit here: https://www.airlinespetpolicy.com/airlines/united-airlines-pet-policy.html #unitedpetpolicycargo #unitedpetpolicy #unitedpettravel #unitedpetincabin #uniteddogpolicy