How to Bring Car Seat on Plane? | FAA Rules Made Simple

You can bring a car seat on a plane if it has FAA aircraft-certification labeling and fits the airline’s seat requirements.

Flying with a little one raises many questions, and whether you can bring a car seat onboard is near the top. The short version: yes, but only if the seat carries the right certification and you follow the airline’s placement rules. For U.S. flights, the FAA states that the safest place for a child under 2 is in an approved child restraint system, not on a lap.

What Makes a Car Seat FAA-Approved for Flying?

Not every car seat is allowed on a plane. The FAA requires that a child restraint system be certified for aircraft use, confirmed by a label reading: “This restraint is certified for use in motor vehicles and aircraft.” If that label is missing, the seat cannot be used during takeoff, landing, or ground movement. Booster seats, baby carriers, and backless restraints are explicitly not allowed during those phases, and harness/vest devices other than the CARES harness are generally not permitted.

How Do You Install and Use a Car Seat on an Aircraft Seat?

Once your seat passes the certification check, installation rules take over:

• Check the label first. Look for the aircraft certification wording on the side or back. No label, no flight.
• Buy a seat for the child. Most airlines require a purchased ticket for the child if you’re using a car seat; lap infants cannot use a restraint in place of a seat.
• Install the restraint exactly per the manufacturer’s instructions. The FAA is firm on this—installation must follow the manual.
• Place the seat at a window. Window seats are commonly required or preferred, and exit rows are always prohibited.
• Choose the right orientation. Rear-facing is allowed if the child and restraint meet the manufacturer’s limits; keep children rear-facing until they hit the forward-facing limits.

If the seat is not installed correctly, the crew can ask you to remove it and stow it in the overhead bin. The seat must also fit within the aircraft seat’s dimensions and not block evacuation, which is why window placement matters.

Is a Booster Seat Ever Allowed on a Plane?

No. Booster seats are never FAA-approved for in-cabin use, so they cannot be used during taxi, takeoff, or landing. Some parents bring them anyway and stow them in the overhead bin for use at the destination, but the child cannot sit in one on the aircraft. If your child normally rides in a booster, you’ll need a full harness car seat with the aircraft label or the CARES harness for children in its weight range.

You’ll also want to confirm whether the airline has additional restrictions. Some carriers require window position, prohibit bulkhead rows, and a few require FAA-approved seats only if a seat was purchased. Checking the airline’s policy before you fly saves a stressful conversation at the gate. Looking for a seat that works in both car and cabin? Our tested roundup of the best airplane car seats on the market compares certified options side by side.

Common Mistakes to Avoid When Flying With a Car Seat

These are the most frequent slip-ups families make, according to the FAA’s guidance:

• Assuming all car seats are accepted.
• Bringing a booster seat. It won’t work in flight, and it can’t replace a certified restraint.
• Using a seat without a purchased child ticket. The airline won’t let you install a car seat unless the child has a seat.
• Ignoring fit limits.
• Choosing the wrong row. Exit rows are prohibited, and many airlines also exclude bulkhead rows.

Foreign-purchased seats with acceptable international approval markings may be allowed, but for U.S. flights, the FAA’s aircraft certification label is the gold standard. If you’re unsure about your specific seat, the FAA’s guidance at the child safety seat tips page walks through the requirements in detail.