Sunan Shuofang International Airport (IATA: WUX, ICAO: ZSWX) is an airport serving the cities of Wuxi and Suzhou in southern Jiangsu Province, China (Sunan meaning "Southern Jiangsu" in Chinese). It is located in Shuofang Subdistrict (硕放街道), 12 kilometres (7.5 mi) southeast of Wuxi and 22 km (14 mi) northwest of Suzhou. The airport was built in 1955 for military use, and commercial flights only started in 2004. Formerly called Wuxi Shuofang Airport (无锡硕放机场), it took the current name in November 2010 and is now co-owned by the governments of Wuxi, Suzhou, and Jiangsu Province. In 2013, Sunan Shuofang Airport handled 3,590,188 passengers, making it the 42nd busiest airport in China.