Start with a healthy animal. Be sure your pet has received all necessary vaccinations and is in tiptop shape. Your pet will need to be examined, so the visit probably will cost you, but generally the certificate is included as part of the exam. The certificate indicates that the pet has been vaccinated against rabies and is healthy to fly. Not all airline agents will ask for the certificate at check-in, but it's best to have one with you.
Book pets on direct, nonstop flights to minimize travel time.
During hot months, schedule flights in early mornings or evenings to avoid traveling in the heat of the day. Reconfirm them 24 to 48 hours before departure. Know the quarantine regulations that may exist at your destination. According to the regulations of the Animal Welfare Act and the International Animal Transport Association, flight kennels must be sturdy, large enough for pets to stand and turn around in, and ventilated on all sides. Kennels should also have containers for food and water, which must be empty during flight.