Since O is only 19 months old, we did not have to buy a separate air plane ticket for her. However, we wanted her to be as safe as possible while on the flight. We decided to buy the Baby B' Air. The Baby B'Air is a vest that O wears, and it has a loop which attaches to our seatbelt. It should protect her from flying around the plane in the event of heavy turbulence or a crash. Luckily, we did not have the opportunity to test the effectiveness, and we hope that we won't find out how well it works on the way home! Its comfortable for O to wear, and it is well-made.