Flight strips were a special type of United States Army Air Forces airfield, consisting of a single paved runway (bituminous or concrete), between 1,800 and 8,000 feet long. They were located (and parallel) to an existing highway.

Most date to World War II, and all were within the continental United States.

The purposes of flight strips were:

• To provide auxiliary landing fields for military purposes and to assist in the dispersal of planes from nearby airports.
• To provide landing facilities for civilian flyers.
• To provide basic landing facilities for small cities or groups of towns for air feeder service and air cargo.
• To provide auxiliary landing facilities for all types of aircraft.

Most were turned over to local communities or abandoned after World War II; although some were developed into USAF facilities or are now civil airports