A "ticket" is useless if you get turned away at the gate. Ensure you have the following: Requirement

Must be leak-proof and allow the dog to stand up and turn around. Soft-sided carriers are best for fitting under seats.

Fee is $150 per kennel for in-cabin travel. Requires check-in at the ticket counter with a health certificate.

For small dogs (usually under 20 lbs including the carrier), you pay a pet fee to keep them under the seat in front of you. Most major airlines like United Airlines and American Airlines charge around $150 each way.

Some boutique or luxury airlines, such as JSX , allow you to purchase an actual adjacent seat for a larger dog to sit on the floor in front of.

How you "buy" the ticket depends entirely on your dog's size and the airline's specific rules.