Reno Stead Airport (ICAO: KRTS, FAA LID: RTS, formerly 4SD) is a large public and military general aviation airport located in the North Valleys area, 10 nautical miles (19 km) northwest of the central business district of Reno, in Washoe County, Nevada, United States.

The location was opened by the United States Army Air Forces in 1942, in the middle of World War 2.

The USAF Survival School and 3904th Composite Wing moved to the base from Camp Carson, Colorado, on 29 May 1951.

[10] In 1964 the Reno Stead Airport was operated by the Ag Aviation Academy, which was then based in Minden, Nevada, about 15 miles south of Carson City.

It was the launch site of "Earthwinds" balloon system in the early 1990s, which attempted and failed multiple times to circumnavigate the globe.

[1] For the 12-month period ending December 31, 2020, the airport had 49,800 aircraft operations, an average of 136 per day: 86% general aviation and 14% military.