Nonstop flight route between Southend, Essex (near London) United Kingdom and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between London Southend Airport (SEN), Southend, Essex (near London) United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,211 miles (or 6,777 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 St. Louis 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 St. Louis 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):

• 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.
• The closest airport to London Southend Airport (SEN) is Rochester Airport (RCS), which is located only 17 miles (28 kilometers) SSW of SEN.
• London Southend Airport handled 969,912 passengers last year.
• Southend Airport has an excellent weather record and is used by airlines as a diversion alternative when adverse weather or incidents close other London airports.
• 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.
• London Southend Airport (SEN) currently has only 1 runway.
• In 1946, the airfield was decommissioned from military use and civil aviation returned in 1947, as did the Southend Municipal Airport name.
• A frequent rail service to London Liverpool Street, with a journey time of about 53 minutes, runs via Stratford from Southend Airport railway station located about 200 m from the main terminal.
• Regionair was a small commuter airline based at Southend in the late 1980s and early 1990s that provided services to Rotterdam and Paris using Embraer EMB 110 Bandeirante and Jetstream 31 aircraft.

Facts about St. Louis Regional Airport (ALN):

• In the spring of 2004 the airport was at the center of a scandal.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• St. Louis Regional Airport (ALN) has 2 runways.
• West Star Aviation is the largest fixed base operations company at the airport.
• The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.