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

About this route:

A direct, nonstop flight between Black Hills Airport (SPF), Spearfish, South Dakota, United States and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 4,387 miles (or 7,061 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 Black Hills Airport and RAF Northolt, 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 Black Hills Airport and RAF Northolt. 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 Black Hills Airport (SPF):

• In addition to being known as "Black Hills Airport", another name for SPF is "Clyde Ice Field".
• The furthest airport from Black Hills Airport (SPF) is Sir Gaëtan Duval Airport (RRG), which is located 10,576 miles (17,020 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Black Hills Airport (SPF) is Ellsworth Air Force Base (RCA), which is located 42 miles (67 kilometers) ESE of SPF.
• Black Hills Airport (SPF) has 4 runways.

Facts about RAF Northolt (NHT):

• Thirty Allied airmen including servicemen from Belgium, Canada, Czechoslovakia, New Zealand, Poland and the United Kingdom were killed flying from RAF Northolt during the Battle of Britain, of whom ten were Polish.
• The remains of a Hawker Hurricane flown by Flying Officer Ludwik Witold Paszkiewicz, the first pilot in No. 303 Squadron to shoot down an enemy aircraft, were donated to the station in June 2008.
• The closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of NHT.
• Civil flights ceased when the central area at Heathrow opened in 1954 with Northolt reverting to sole military use in May that year.
• 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.
• No. 600 Squadron and No.