Nonstop flight route between Ruislip, England, United Kingdom and Watertown, South Dakota, United States:

About this route:

A direct, nonstop flight between RAF Northolt (NHT), Ruislip, England, United Kingdom and Watertown Regional Airport (ATY), Watertown, South Dakota, United States would travel a Great Circle distance of 4,140 miles (or 6,662 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between RAF Northolt and Watertown Regional Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between RAF Northolt and Watertown Regional Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about RAF Northolt (NHT):

• Northolt pre-dates the establishment of the Royal Air Force by almost three years, having opened in May 1915.
• Following Louis Blériot's first flight across the English Channel in 1909, the British Army considered the necessity of defending the United Kingdom from a future air attack.
• In 1943, the station became the first to fly sorties using Supermarine Spitfire Mk IXs in German airspace in support of bomber operations.
• Much media attention focused on the airfield when the body of Diana, Princess of Wales, arrived there from Villacoublay airfield, in Paris, France, after her death in a car crash in the city on 31 August 1997.
• The furthest airport from RAF Northolt (NHT) is Chatham Islands (CHT), which is located 11,871 miles (19,105 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
• In January 2012, it was reported that the future of station was under review by the Ministry of Defence as part of efforts to reduce defence spending.
• RAF Northolt is a Royal Air Force station in South Ruislip, 2 nautical miles from Uxbridge in the London Borough of Hillingdon, west London.
• RAF Northolt became home to Prime Minister Winston Churchill's personal aircraft, a modified Douglas C-54 Skymaster, in June 1944.
• In 1916, No. 43 Squadron was formed under the command of Major Sholto Douglas.

Facts about Watertown Regional Airport (ATY):

• In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".
• During World War II the airfield was used by the United States Army Air Forces.
• Watertown Regional Airport (ATY) has 2 runways.
• The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
• The furthest airport from Watertown Regional Airport (ATY) is Margaret River Airport (MGV), which is located 10,571 miles (17,013 kilometers) away in Margaret River, Western Australia, Australia.