John Henry Key Airport

The closure was primarily due to economic reasons driven by urban encroachment. As the city of Boerne and the San Antonio metropolitan area expanded, the land value increased significantly, making it more profitable for real estate development than for private aviation. The growth of the nearby public-use Boerne Stage Field (5C1) also likely contributed to making this small, private strip redundant.

The site of the former airport has been completely redeveloped. The land is now occupied by the 'Woods of Frederick Creek' residential subdivision and adjacent commercial properties, including a shopping center. There are no visible remnants of the runway, hangars, or other airport infrastructure. The name of the airport is commemorated by a local street, 'Key Drive', which runs through the former airport property.

Originally established between 1945 and 1949 as Johns Field, it was later renamed Key Airport after its owner, John Henry Key, a local pioneer aviator. It served as a private general aviation airfield for several decades. The facility consisted of a single unpaved runway, approximately 2,600 feet in length, and catered to local private pilots and their aircraft. It represented a typical small, privately-owned airfield that supported the post-World War II boom in civil aviation in rural America.

There are no plans or prospects for reopening the airport. The land has been permanently and fully converted to high-density residential and commercial use, making any future aviation activity at this location impossible.