Allegiant recommends their passengers arrive at the airport at least two hours prior to scheduled departure. Customers need to be checked in no less than 45 minutes prior to scheduled departure as the ticket counter closes.
All other passengers should arrive 90 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. The terminal building opens at 3:30 am daily.
Ticket counters close for check-in 30 to 45 minutes prior to departure depending on the airline. 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.