KOA has two passenger terminals designated as South and North terminals. The North Terminal has gates 1 to 5 with baggage claim at A. The North Terminal, on the other hand, has gates 6 to 10 with baggage claim B. Both terminals have similar passenger facilities. International flights are conducted in the North Terminal.
It comprises of common airport facilities, which include departure and arrival hall, check-in counters, security checkpoint, restaurants, car rental office, and baggage claim.