Idong Airport, designated G-231 and holding the ICAO code RKRI, is a small airfield located in Idong-myeon, South Korea. It is not served by scheduled commercial airline services and has no assigned IATA code, indicating its non-commercial status. The facility is understood to serve general aviation, military, or government purposes consistent with many smaller South Korean airfields of its classification. Detailed operational and infrastructure information about this airport is limited in publicly available sources.