With just one terminal builiding, PIO isn't the most bustling airport around. That being said, make sure you arrive with sufficient time to check in your luggage and get through security. We wouldn't want you to miss your flight! Avoid the mad dash through the airport, or the dread of missing your flight, by arriving 1.5-2 hours prior to domestic trips. Get to the airport 2-3 hours before if you're traveling internationally. This will grant you enough time to check in bags, pass through security and customs and find your way to your gate. For the best advice, check the arrival time recommendations of both your airline and departure airport.