Okushiri Airport was granted airport status in June 1973 and the airport was officially opened in September 1974. Services began to Hakodate and Sapporo Okadama in October 1974. Between 2004 and 2006, Okushiri Airport was redesigned and a new terminal building with a new 1,500 meter runway was constructed over the current airport. The former 800 meter runway was abolished and the former terminal building was converted into a warehouse for a local construction company.[2]