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

About this route:

A direct, nonstop flight between London Heathrow Airport (LHR), London, England, United Kingdom and Watertown Regional Airport (ATY), Watertown, South Dakota, United States would travel a Great Circle distance of 4,141 miles (or 6,665 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 Heathrow Airport 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 London Heathrow Airport 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 London Heathrow Airport (LHR):

• When runway alternation was introduced, aircraft generated significantly more noise on departure than when landing, so a preference for westerly operations during daylight was introduced, which continues to this day.
• London Heathrow Airport (LHR) has 2 runways.
• The original 1950s red-brick control tower was demolished in early 2013 to enable access roads for the new Terminal 2 to be laid.
• Terminal 1 opened in 1968 and was formally inaugurated by Queen Elizabeth II in May 1969.
• The closest airport to London Heathrow Airport (LHR) is RAF Northolt (NHT), which is located only 6 miles (9 kilometers) NNE of LHR.
• The airport holds a Civil Aviation Authority Public Use Aerodrome Licence, which allows flights for public transportation of passengers or for flying instruction.
• Until 2008, air traffic between Heathrow and the United States was strictly governed by the countries' bilateral Bermuda II treaty.
• Because of London Heathrow Airport's relatively low elevation of 83 feet, planes can take off or land at London Heathrow 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 Heathrow Airport (LHR) is Chatham Islands (CHT), which is located 11,875 miles (19,112 kilometers) away in Waitangi, Chatham Islands, New Zealand.

Facts about Watertown Regional Airport (ATY):

• The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
• B-17 Flying Fortress and B-24 Liberator units underwent advanced training before going overseas.
• 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.
• Watertown Regional Airport (ATY) has 2 runways.
• In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".