American Airlines allows dogs on board for $100 per pet. Pets traveling in the cabin require a reservation to make sure that no more than seven pets are booked on any single flight. American Airlines recommends travelers make pet reservations in advance. American only allows dog travel within the 48 contiguous United States, Alaska, Puerto Rico, St. Thomas and St. Croix.
Delta allows you to bring your dog on the plane for a one-way fee of $125 that you pay at check-in. Your dog must be small enough to fit inside a kennel that fits snug under the seat in front of you. Your dog must remain inside the kennel, with the door securely shut, during boarding, on board and while getting off the plane. Delta also requires your dog to be at least 8 weeks old. Delta charges a $200 fee for travel outside the U.S., except for Brazil, where the fee is set at $75.
Southwest Airlines accepts small, vaccinated domestic dogs to travel on board. Southwest charges a one-way $75 pet travel fee per pet; the kennel counts as one of your carry-on bags. Because Southwest accepts pets on a first come, first served basis, make a reservation for you pup in advance by calling Southwest at 800-I-FLY-SWA (800-435-9792). You must pay the pet fare before going to the departure gate.
United Airlines allows dogs to fly in-cabin as a carry-on. As of 2010, United Airlines instilled a summer embargo breed restriction on short-nosed dog breeds, or mixed-breed dogs exhibiting the short-nosed characteristics, from June 1 through Sept. 30 of each year. However, this restriction does not apply to dogs traveling with you in-cabin. The kennel you bring for your dog must be sturdy, properly ventilated, and large enough for your pet to stand, lie down and comfortably turn around inside. United Airlines charges a $125 fee per pet traveling within the U.S.
In lieu of a carry-on bag, you can travel with you dog in-cabin for a one-way $125 fee. Continental requires you to book your dog's travel in advance by calling reservations. Your dog must stay inside the kennel for the duration of the trip, so make sure the kennel is a comfortable size for your dog to move around inside. Continental only allows one pet per passenger and no more than four pets traveling in the economy cabin.
