Yes, you can—and are often encouraged to—bring a car seat on a plane, provided it is FAA-approved (indicated by a label stating "This restraint is certified for use in motor vehicles and aircraft"). Using a car seat is the safest way for a child to travel, as lap-holding provides no protection during severe turbulence or an emergency. To use a car seat, you must have purchased a separate seat for the child; you cannot use it in your own lap. In 2026, most airlines require that car seats be placed in a window seat so they do not block the exit path for other passengers in the row. It is important to note that car seats are generally prohibited in "exit rows" or the rows immediately in front of or behind them. If you do not wish to use the seat during the flight, you can "gate-check" it for free with almost any airline, including low-cost carriers. This ensures the seat is available immediately upon landing without being subjected to the rough handling of the main baggage system.