Nonstop flight route between Fort Sill, Oklahoma, United States and Düne, Helgoland, Schleswig-Holstein, Germany:

About this route:

A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Heligoland Airport (HGL), Düne, Helgoland, Schleswig-Holstein, Germany would travel a Great Circle distance of 4,905 miles (or 7,893 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 Henry Post Army Airfield 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 Henry Post Army Airfield 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 Henry Post Army Airfield (FSI):

• Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
• Henry Post Army Airfield (FSI) currently has only 1 runway.
• The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
• Air Service/Corps units assigned to Post Field between 1919 and 1941
• The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
• The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.

Facts about Heligoland Airport (HGL):

• In addition to being known as "Heligoland Airport", another name for HGL is "Flughafen Helgoland-Düne".
• 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.
• 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 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.
• Heligoland Airport (HGL) has 3 runways.
• The closest airport to Heligoland Airport (HGL) is Wangerooge Airport (AGE), which is located 28 miles (45 kilometers) S of HGL.
• The first military airfield on Düne existed during World War II when Heligoland had been fortified.