Security clearance at Incheon International Airport Security Wait Times is generally quick, which enables passengers to go through the security check without much anxiety. The airport is equipped with state-of-the-art security machines, in addition to several security check-in points that enable efficient handling of passengers' movement even during the rush periods. There are helpful staff members at the airport to help passengers go through the whole process easily and quickly. Although wait times may differ according to the time of day or flight schedule, coming a few hours earlier than the flight helps you have enough time to move around at the airport.