All passengers should arrive 75 minutes before their scheduled departure for a domestic flight. If you are traveling to an international destination, you should plan on arriving two hours prior to departure.
Ticket counters close for check-in 30 to 45 minutes prior to departure. The airlines require passengers to be at the departure gate at least 30 minutes prior to departure or risk missing their flight. The boarding door to the aircraft is closed approximately 10 minutes before departure time to ensure an on-time departure.