Nonstop flight route between Pituffik, Greenland and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Thule Air Base (THU), Pituffik, Greenland and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 2,680 miles (or 4,314 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 Thule Air Base 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 Thule Air Base 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 Thule Air Base (THU):

• In 1954, the 378 m Globecom Tower, a tower for military radio communication, was built at Northmountain.
• In addition to being known as "Thule Air Base", another name for THU is "Thule AB".
• A delegation from NATO's Parliamentary Assembly visited Thule in early September 2010 and were told by the base commander that, at that time, approximately 600 personnel were serving at Thule, a mix of mostly U.S.
• Knud Rasmussen was the first to recognize the Pituffik plain as ideal for an airport.
• The closest airport to Thule Air Base (THU) is Savissivik Heliport (SVR), which is located 69 miles (111 kilometers) ESE of THU.
• The furthest airport from Thule Air Base (THU) is Hobart International Airport (HBA), which is located 9,883 miles (15,905 kilometers) away in Hobart, Tasmania, Australia.
• In 1957 construction began on 4 Nike Missile sites around the base, and they and their radar systems were operational by the end of 1958.

Facts about St. Louis Regional Airport (ALN):

• 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 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.
• Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
• St. Louis Regional Airport (ALN) has 2 runways.
• 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.
• 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.