Check with your airline to find out about gate-checking procedures. Some airlines only allow you to gate-check one item, which can be a problem if you have both a car seat and a stroller with you. If the airline only accepts one gate-checked item, check the car-seat with the rest of your luggage. To protect it from damage, place it in the original box or a similar box before checking it.
Ask the gate agent for a gate-check tag for your car seat. The tag is necessary for the car seat to be placed in the cargo hold.
Proceed down the jetway to the plane during family boarding. Leave the car seat at the end of the jetway just before you enter the plane.The ramp agent will place your car seat in the cargo hold.
Pick up your car seat on the jetway when you are deboarding. Ramp agents bring up the gate-checked items from the cargo hold as soon as the plane arrives at the gate.