Nonstop flight route between Coltishall, United Kingdom and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Coltishall (IATA off-point) (CLF), Coltishall, United Kingdom and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,200 miles (or 6,759 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 Coltishall (IATA off-point) 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 Coltishall (IATA off-point) 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 Coltishall (IATA off-point) (CLF):

• Between 1779 and 1912, it was possible to navigate the River Bure all the way to Aylsham, but now the limit of navigation for powered craft is just south of Coltishall.
• Horstead watermill on the Coltishall-Horstead river border was one of the most photographed mills in the county until it burned down in 1963.
• The furthest airport from Coltishall (IATA off-point) (CLF) is Chatham Islands (CHT), which is located 11,813 miles (19,010 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• Because of Coltishall (IATA off-point)'s relatively low elevation of 0 feet, planes can take off or land at Coltishall (IATA off-point) 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 Coltishall (IATA off-point) (CLF) is Norwich International Airport (NWI), which is located only 5 miles (8 kilometers) SW of CLF.

Facts about St. Louis Regional Airport (ALN):

• 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 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.
• St. Louis Regional Airport (ALN) has 2 runways.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• 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.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.