Your pet can travel on the plane with you (either in-cabin, as accompanied baggage, or as cargo). Your pet will be charged accordingly. Some airlines no longer offer this option and some countries do not allow pets to enter the country in-cabin. You can book your pet on a separate flight.
How much is a flight ticket for a small dog?
Generally, airlines charge a pet fee of $100 to $200 each way, but prices will vary depending on where you're traveling and your airline. Check the airline's pet policy before purchasing a ticket to make sure your pet meets the airline's breed and size requirements.