Nonstop flight route between Essex (near London), England, United Kingdom and Sidney, Montana, United States:

About this route:

A direct, nonstop flight between London Stansted Airport (STN), Essex (near London), England, United Kingdom and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 4,243 miles (or 6,829 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 London Stansted Airport and Sidney-Richland Municipal 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 London Stansted Airport and Sidney-Richland Municipal 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 London Stansted Airport (STN):

• Long-haul services to the USA returned in late 2005, when Eos Airlines and MAXjet Airways commenced all-business-class services from Stansted to New York-JFK Airport.
• Stansted is a base for a number of major European low-cost carriers, being the largest base for low-cost airline Ryanair with over 100 destinations served by the airline.
• Because of London Stansted Airport's relatively low elevation of 348 feet, planes can take off or land at London Stansted Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
• The furthest airport from London Stansted Airport (STN) is Chatham Islands (CHT), which is located 11,858 miles (19,084 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Since 1984 the airport's capacity had been limited to a maximum throughput of 25 million passengers per annum in accordance with recommendations made by the 1984 public inquiry and confirmed by the government of the day.
• The closest airport to London Stansted Airport (STN) is MDPGA Wethersfield (WXF), which is located only 13 miles (21 kilometers) ENE of STN.
• London Stansted Airport handled 17,852,393 passengers last year.
• During the 1960s, 1970s and early 1980s the Fire Service Training School was based on the eastern side of the airfield under the auspices of the Ministry of Transport and Civil Aviation, now the Civil Aviation Authority.
• London Stansted Airport (STN) currently has only 1 runway.
• In 2008 57 people were arrested after Plane Stupid, the environmental activist group, broke through the barriers and created a 'stockade' on a taxiway which resulted in 52 flights being cancelled.
• The airfield opened in 1943 and was used during the Second World War as RAF Stansted Mountfitchet by the Royal Air Force and the United States Army Air Forces as a bomber airfield and as a major maintenance depot.
• Stansted's Air traffic control tower was completed in 1996 is amongst the tallest in Britain and was the tallest at the time of its construction.

Facts about Sidney-Richland Municipal Airport (SDY):

• As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
• 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.
• Sidney-Richland Municipal Airport (SDY) has 2 runways.
• 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.
• Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.