Make sure the collar and tags cannot get hooked on metal grates or other parts of the kennel during flight. Veterinarians recommend breakaway collars for cats. Feed and offer water to your pet four hours before the flight. Federal law requires you to do this. Don't allow your pet to overeat, however.
Veterinarians recommend against allowing pets to travel on a full stomach.
Exercise your pet before handing your pet over to the airline. This will help your pet to be more comfortable during the trip. If you want your pet to travel in the cabin as accompanied baggage, you must be a passenger traveling on the same flight as your pet. Most airlines place a limit on the number of pets allowed in the cabin, so make sure you inform the airline when you make your reservation that you want to bring your pet on board with you. At that time, ask for the airline's rules on pet travel, including the recommended dimensions of your pet's carrier and the types of pets the airline will allow in the cabin.