How far in advance of departure should I arrive at the Airport to check my baggage?

Passengers who are checking baggage are advised to arrive 90 minutes before departure in order to check in and pass through Security in a timely manner. The check in counter closes 40 minutes before posted departure. If you have not checked your bags 40 minutes prior to departure and do not have your boarding pass in hand at least 30 minutes prior to departure, you risk missing your flight.