Heston Aerodrome west of London was operational between 1929 and 1946. Remains of the airport can still be found on the border of the Heston and Cranford areas of Hounslow. In 1938, the Prime Minister, Neville Chamberlain, flew from Heston to Munich for talks with Adolf Hitler, and returned to Heston with the paper referred to in his later "peace in our time" speech from 10 Downing Street.

The Airwork Company, directed by Sir Nigel Norman (later Air Commodore) opened Heston aerodrome for flying clubs and private aeroplane owners in 1929, with some charter flying. In the 1930s, with new companies springing up to compete with Imperial Airways, Heston was in a good position to take advantage. Spartan Airways was the first airline to use Heston, with a twice-daily service to Cowes in the Isle of Wight. Other services and airlines followed, including from 1938, British Airways Ltd. who wanted an alternative to the waterlogged Gatwick.

In 1937, the airport was bought by the Air Ministry and developed to become almost as large as Croydon Airport, making it London's second airport at that time. With the outbreak of World War II, civil flying was suspended.

During the late 1930s, the British government had been studying the future of air transport and airports in the London area. It had been decided that London would be served by 4 airports - Croydon, Heston and new airfields at Fairlop in Essex and Lullingstone, Kent. To this end, improvements and extensions had already begun at Heston with the intention of bringing it up to the most modern standards of airports elsewhere in Europe. New drainage was put in and trees near the flight path removed. Runway lighting and radio aids to landing were installed. Land and buildings around the site were bought up for expansion, including St Mary's Boys Orphanage in North Hyde which was demolished. 

An Act of parliament - Air Ministry (Heston and Kenley) Act 1939 - authorised the compulsory purchase of land and road closures needed. The work was planned to take three years, partly because it was intended to keep the existing facilities in uninterrupted use, and partly to allow the new ground to be prepared and substantial new buildings to be constructed.

The Air Ministry had intended to take over the site from Airwork Ltd in September 1939, but the outbreak of war intervened and the plans were never implemented. Heston ceased to be a civil airport in mid 1940 and most of its services still operating were transferred to Gatwick.

During the second world war, RAF Spitfires and Hurricanes flew from Heston airport, followed by US Air Force Flying Fortress bombers.

With the war over, the old plans for 4 London airports were scrapped. Heathrow was by then chosen as the main London Airport, and its proximity would have made flying from Heston impossible,

Car racing was carried out for a short time after the airfield had closed using the old perimeter track.

The only airport building still standing is a hanger close to Aerodrome Way - the original approach road

Photos: PeterWD, CC BY-SA 3.0, via Wikimedia Commons; Ministry of Information official photographer, Public domain, via Wikimedia Commons