Yes, American Airlines allows you to check one car seat and one stroller per child for free. This can be done at the ticket counter when you first arrive at the airport or at the gate right before you board the aircraft. If you are traveling with an infant as a lap child, you may still bring the car seat to the gate; if there is an empty seat available on the plane, the crew may allow you to use it for the child at no extra cost. However, the only way to guarantee the use of a car seat on the plane is to purchase a separate seat for the child. The car seat must be FAA-approved and have a solid back and seat, with internal harness straps. It is highly recommended to use a protective bag for checked car seats to prevent damage during transit. This policy is designed to make family travel more accessible and ensures that essential safety equipment does not count toward your standard checked bag allowance or incur additional fees, regardless of your fare class.