Nonstop flight route between Alton, Illinois, United States and Düne, Helgoland, Schleswig-Holstein, Germany:

About this route:

A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Heligoland Airport (HGL), Düne, Helgoland, Schleswig-Holstein, Germany would travel a Great Circle distance of 4,388 miles (or 7,062 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 St. Louis Regional Airport and Heligoland 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 St. Louis Regional Airport and Heligoland 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 St. Louis Regional Airport (ALN):

• 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.
• 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.
• 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.
• 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.
• St. Louis Regional Airport (ALN) has 2 runways.

Facts about Heligoland Airport (HGL):

• The first military airfield on Düne existed during World War II when Heligoland had been fortified.
• In addition to being known as "Heligoland Airport", another name for HGL is "Flughafen Helgoland-Düne".
• The closest airport to Heligoland Airport (HGL) is Wangerooge Airport (AGE), which is located 28 miles (45 kilometers) S of HGL.
• Heligoland Airport is a small airport on the German island of Düne, the smaller of the two isles of the Heligoland archipelago in the North Sea, about 70 kilometres from the mainland.
• Because of Heligoland Airport's relatively low elevation of 7 feet, planes can take off or land at Heligoland 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.
• Heligoland Airport (HGL) has 3 runways.
• The airport is licensed for aeroplanes up to 5,700 kilograms maximum takeoff weight and helicopters up to 10,000 kilograms.
• The furthest airport from Heligoland Airport (HGL) is Chatham Islands (CHT), which is located 11,693 miles (18,819 kilometers) away in Waitangi, Chatham Islands, New Zealand.