A plane ticket for a dog depends on the airline itself and the class the pet is flying. Can it fly as carry on, or does it need to fly cargo, will depend on ticket price. The FAA requires that all pets are vaccinated, free of fleas and disease, and at least 8 weeks of age or older and weaned for at least 5 days. Depending on where you fly (international) etc.. you may need a pet clearance by a vet. Check with your airline your flying on to see what their prices, rules and regulations are.