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

About this route:

A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and RAF Northolt (NHT), Ruislip, England, United Kingdom would travel a Great Circle distance of 4,438 miles (or 7,143 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 Roundup 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 Roundup 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 Roundup Airport (RPX):

• Roundup Airport (RPX) has 2 runways.
• The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.

Facts about RAF Northolt (NHT):

• In December 1946, after taking off during a heavy snowstorm, a Douglas DC-3 operated by British European Airways, flying from Northolt to Glasgow, crashed onto the roof of a house in South Ruislip.
• Group Captain Tom Barrett, appointed station commander in September 2009 and the final station commander of neighbouring RAF Uxbridge, died on 10 March 2011 following a road traffic accident on the A40.Wing Commander Jules Stilwell paid tribute to Group Captain Barrett, saying, "Tom was an extraordinary person.
• 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.
• Northolt became an active base during the Second World War for Royal Air Force and Polish Air Force squadrons in their defence of the United Kingdom.
• 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.
• Civil flights ceased when the central area at Heathrow opened in 1954 with Northolt reverting to sole military use in May that year.