Some allow small dogs to travel in the aircraft cabin as part of your carry-on luggage allowance, while others will only allow pets to travel in the cargo area, and fees can vary from nothing at all to more than $500. Also, most airlines only allow one or two dogs on each flight, so always make sure a “seat” is available for your dog before buying your own ticket.

American Airlines Pet Policy :

American Airlines allow small dogs and cats to fly in the passenger cabin. An additional fee of $125 each way applies. Additional restrictions may apply. Larger cats and dogs can fly in the baggage compartment, on a first-come, first served basis. The charge for pets flying in the baggage compartment is $200 ($150 to/from Brazil). Two checked pets per person is the maximum allowed. Arrangements for transportation of larger pets, other types of pets, or pets traveling alone can be made through AA Cargo. Fees range from $275 to $450 depending on your pet’s weight, departure airport, and destination.

Delta Airlines Pet Policy :

Delta allows passengers to carry on small dogs, cats, and household birds for additional fee of $125 each way within the US and Canada. Pet fees are $200 outside the US, except to/from Brazil, where the fee is $75. Limited space is available, so pets need reservations. Transportation for other types of pets can be arranged via Delta Cargo.

Frontier Airlines Pet Policy :

Frontier allows cats, dogs, guinea pigs, hamsters, rabbits, and household birds to travel in the passenger cabin. A pet fee of $75 applies. Only dogs and cats can fly on international flights. The airline pet policies provide limited space per flight, so pets need reservations. Frontier does not transport pets in the cargo area of the airplane.

JetBlue Pet Policy :

JetBlue welcomes small cats and dogs in the passenger cabin on both domestic and international flights for an additional fee of $125 each way. The combined weight of the pet and carrier must be 20 pounds or less, and reservations are required. JetBlue does not fly animals in baggage or cargo.

Southwest Airlines Pet Policy :

Southwest allows small cats and dogs to fly in-cabin on domestic flights for an additional fee of $95 each way. The airline pet policies state that pets cannot fly on international flights. Southwest allows six pets per flight with a limit of one pet carrier per customer. Southwest does not allow you to make a reservation for your pet in advance. In-cabin slots are assigned to pets at the ticket counter on the day of your flight on a first-come, first-served basis. Southwest does not transport pets as baggage or cargo.

United Airlines Pet Policy :

United allows cats, dogs, rabbits and household birds to travel in the passenger cabin on most flights within the US. A pet fee of $125 each way applies. There is an additional $125 service charge for each stopover of more than four hours within the U.S. or more than 24 hours outside of the U.S. The airline pet policies require that pets have reservations.

Spirit Airlines Pet Policy :

Spirit welcomes small cats, dogs, and household birds to travel in the passenger cabin on domestic flights for an additional fee of $110 each way. The combined weight of the pet and carrier may not exceed 40 pounds, and reservations are required.