Nonstop flight route between Southend, Essex (near London) United Kingdom and Watertown, South Dakota, United States:

About this route:

A direct, nonstop flight between London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and Watertown Regional Airport (ATY), Watertown, South Dakota, United States would travel a Great Circle distance of 4,178 miles (or 6,723 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 Southend 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 Southend 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 Southend Airport (SEN):

• The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
• The airfield was established by the Royal Flying Corps during World War I.
• Because of London Southend Airport's relatively low elevation of 55 feet, planes can take off or land at London Southend 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.
• Companies located at and around the airport employ over 1,000 skilled workers, providing services such as engineering and maintenance work on airliners, including re-spraying, refurbishment, upgrades to avionics, manufacture of aircraft seats and the installation of new or hush-kitted engines.
• London Southend Airport (SEN) currently has only 1 runway.
• British World Airlines was based at Southend, previously they operated as British Air Ferries, and before that, as British United Air Ferries – formed from the merger of Channel Air Bridge and Silver City Airways.
• The furthest airport from London Southend Airport (SEN) is Chatham Islands (CHT), which is located 11,885 miles (19,126 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In 1946, the airfield was decommissioned from military use and civil aviation returned in 1947, as did the Southend Municipal Airport name.
• A four-star Holiday Inn hotel located adjacent to the airport entrance opened on 1 October 2012.
• London Southend Airport handled 969,912 passengers last year.

Facts about Watertown Regional Airport (ATY):

• 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.
• The closest airport to Watertown Regional Airport (ATY) is Brookings Regional Airport (BKX), which is located 45 miles (73 kilometers) SSE of ATY.
• During World War II the airfield was used by the United States Army Air Forces.
• In addition to being known as "Watertown Regional Airport", another name for ATY is "Watertown Army Airfield".
• Watertown Regional Airport (ATY) has 2 runways.