Jeju International Airport

Jeju International Airport carries the IATA code CJU — the three letters printed on boarding passes and baggage tags — and the ICAO code RKPC, used in flight plans and by air traffic control. It serves Jeju City, South Korea.

IATA codes are assigned by the International Air Transport Association for passenger-facing use; the four-letter ICAO code encodes region and country and belongs to the operational side of aviation.