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Amakusa Airfield (天草飛行場) is an airport 2.3 NM (4.3 km; 2.6 mi) northwest of Amakusa, Kumamoto, Japan, on the Amakusa Islands (IATA: AXJ, ICAO: RJDA) in Japan. Locals often refer to it as Amakusa Airport. It is on the northern side of the Amakusa Islands, northwest of Amakusa city. It is used by only one airline, Amakusa Airlines, which is based there.

https://en.wikipedia.org/wiki/Amakusa Airfield