The Museum of Flight is a private nonprofit air and space museum in the northwest United States. It is located at King County International Airport (Boeing Field), in the city of Tukwila, Washington, south of downtown Seattle. It was established in 1965 and is fully accredited by the American Alliance of Museums. As the largest private air and space museum in the world, it also hosts the largest K-12 educational programmes in the world. The museum attracts over 400,000 visitors every year.