The information in the following chart was taken from the websites of various airlines and was current as of 8/20/2008. Rates apply to domestic travel only and apply to one-way travel. Double these costs for roundtrip travel. Baggage rules are complicated and this chart is a simplification. Rates change. For the most accurate information, you should phone the airline and get confirmation of your luggage entitlements and what the additional fees might be shortly before your flight.

When traveling by plane, plan to visit your veterinarian before your trip. Certification of health must be provided no more than 10 days before travel. Rabies and vaccination certificates are also required. Your dog should be at least 8 weeks old and weaned.

Airlines make it clear that it is the owner's responsibility to verify the dog's health and ability to fly. Also be sure to check the temperature of the flight's starting point and destination; it may be too hot or too cold to be safe for your dog.

Federal regulations prohibit shipping live animals as excess baggage or cargo if an animal will be exposed to temperatures that are below 45°F or above 85°F for more than four hours during departure, arrival, or while making connections. (Some airlines have additional temperature regulations for snub-nosed dogs such as Pugs and Boston Terriers.)

Remember that each airline has its own variations on regulations and services. For example, if your crate doesn't meet its requirements, the airline may not allow you to use it. They may, however, allow your dog in the passenger cabin if your crate or carrier fits under the seat in front of you.

When making your reservations, you must make reservations for your dog. There are restrictions on the number of animals permitted. They are accepted on a first-come, first-served basis.

For the latest information on personal baggage fees and restrictions, click here.