Sado Airport (IATA: SDS, ICAO: RJSD) is a small regional airport located on Sado Island, Niigata Prefecture, Japan. It serves as the primary air link between the island and the Japanese mainland, connecting Sado to Niigata City via short domestic flights. The airport operates limited daily flights and primarily serves travelers seeking an alternative to the ferry crossing from the mainland. Given Sado Island's relatively modest population and its remote location in the Sea of Japan, the airport handles low passenger volumes and operates on a modest scale. Sado Island is known for its traditional culture, Noh theater heritage, the Kodo taiko drumming group, and former gold mines. The airport plays a role in supporting tourism to these attractions, particularly during major cultural events.