“….Some airlines charge to bring pets in the cabin; some don't. Some airlines restrict the travel of short-nosed animals, like Persian cats and pugs, which have shorter nasal passages that make breathing difficult at higher altitudes. Most also don't allow pets to travel as cargo in temperatures below 20 degrees and above 85 degrees.

Most mishaps, according to the American Veterinary Medical Association, stem not from mishandling or a panicked animal getting injured or lost but from sedation. The AVMA advises against giving tranquilizers to pets during air travel because the results are often unpredictable, even fatal.

"An animal's natural ability to balance and maintain equilibrium is altered under sedation," said Dr. Patricia Olson, director of veterinary affairs and studies for the American Humane Association. "When the kennel is moved, a sedated animal may not be able to brace and prevent injury."

Continental now requires passengers to sign a waiver saying their animal has not been sedated, but most airlines don't have that rule.

All these different policies can be confusing. "It seems like it all depends on the mood of the person you're dealing with at the airport that day," said Eric Buss, a magician from Los Angeles who has traveled by plane with the doves and rabbits he uses in his act.

But there are some rules that you and the airlines must follow. Here's what you need to know about flying with your pet:

--Federal officials began making the pet-related travel statistics public last year for the first time as part of regulations imposed by the Safe Air Travel for Animals Act, which was passed by Congress in 2000 under pressure from animal rights activists. Most air trips with pets are without incident. There were 14 reported pet deaths, four injuries and six lost animals between May and September 2006.

-Most airlines require pets to be considered healthy, under 100 pounds and at least 8 weeks old.

-Pets are never allowed out of their containers, and, of course, the airline assumes no responsibility for their health and well being. (Many even state on their web sites that crew members cannot perform lifesaving measures on ailing pets.)

-Less traditional pets aren't allowed at all, like potbellied pigs, primates and certain venomous reptiles. And that usually means no "snakes on a plane."

-The U.S. Department of Agriculture, which regulates pet air-travel, requires a health certificate from a vet 10 days before traveling for animals flying as cargo, but not when flying as checked baggage or carry-on. Martz suggests carrying such certification in any case just in case you are asked for it.

-Many airlines, like Continental, United and American, suggest and apply the certification even for pets transported in the cabin because some states require it. (To learn which ones, visit http://www.aphis.usda.gov/vs/sregs/.) Health certification is also required on most international flights.

-Fees vary. JetBlue charges $50 for a pet to fly in the cabin; Continental, $95, American and Northwest, $80. It's free on USAir Shuttle and Delta Shuttle.

-American Airlines, Delta and JetBlue allow pets in the cabin. Frontier and Champion only allow them as cargo. Southwest won't let pets fly at all.

-Some airlines only allow one animal in the cabin per flight. American allows up to seven. Sometimes certified service dogs count as a pet; sometimes they don't.

-American Airlines requires paperwork certifying that pets were fed and watered within four hours before delivery. Most don't.

-Alert the airline of a pet when booking your flight to make sure there's room in the cabin.

-Fly during a weekday when airports are less hectic.

-Fly in the morning or evening during the summer, and midday during the winter to ensure safe temperatures for pets traveling as cargo.

-Choose a nonstop, direct flight.

-Exercise your pet before leaving to help it relax and sleep.

-Do not feed or give water to your pet two hours before departure.

-Check in at least two hours before time, and have all paperwork ready.

-Tape a note on the pet container with all relevant information: name of the pet, age, destination and flight number.

-Make sure the carry-on container will fit under the seat.

-Familiarize your pet with its carrier before leaving home, and make sure the pet is wearing tags or is microchipped.

Of course, even when you take every precaution and follow all the rules, flying with pets can be challenging…. “