Dunnville Airport (TC LID: CDU9) was a registered aerodrome located 2 nautical miles (3.7 km; 2.3 mi) south of Dunnville, Ontario, Canada. It was built during World War II as part of the British Commonwealth Air Training Plan and was home to Royal Canadian Air Force No.6 Service Flying Training School, which opened on 25 November 1940 and closed on 1 December 1944. The No. 6 Dunnville Museum is located in Hangar 1 at the airport and commemorates the RCAF pilot training school. In 2003 the airport was designated a National Historic Civil Engineering Site by the Canadian Society of Civil Engineers. On 30 May 2013, all flight operations ceased at the airport to make way for industrial wind turbines. The former airport is privately owned, but the public is welcome at the museum.