Nonstop flight route between Sidney, Montana, United States and Ruislip, England, United Kingdom:

About this route:

A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 4,238 miles (or 6,820 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 Sidney-Richland Municipal 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 Sidney-Richland Municipal 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 Sidney-Richland Municipal Airport (SDY):

• Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
• The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
• The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
• Sidney-Richland Municipal Airport (SDY) has 2 runways.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.

Facts about RAF Northolt (NHT):

• No. 600 Squadron and No.
• In 1943, the station became the first to fly sorties using Supermarine Spitfire Mk IXs in German airspace in support of bomber operations.
• Starting in 1946 the airfield was used by civil aviation during the construction of nearby Heathrow Airport.
• Attention was high again in 2001 when Ronnie Biggs, the seriously ill, fugitive Great Train Robber, was flown from Brazil to the airfield to be arrested by waiting police officers.
• Northolt received its first gate guardian, a Spitfire F.Mk 22, in September 1963.
• 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.
• 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.
• 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 closest airport to RAF Northolt (NHT) is London Heathrow Airport (LHR), which is located only 6 miles (9 kilometers) SSW of 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.