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

About this route:

A direct, nonstop flight between Heligoland Airport (HGL), Düne, Helgoland, Schleswig-Holstein, Germany and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States 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 Heligoland Airport and Henry Post Army Airfield, 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 Heligoland Airport and Henry Post Army Airfield. 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 Heligoland Airport (HGL):

• In addition to being known as "Heligoland Airport", another name for HGL is "Flughafen Helgoland-Düne".
• Heligoland Airport (HGL) has 3 runways.
• A ferryboat service connects Düne to the Heligoland main island.
• The airport is licensed for aeroplanes up to 5,700 kilograms maximum takeoff weight and helicopters up to 10,000 kilograms.
• 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.
• 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.
• The first military airfield on Düne existed during World War II when Heligoland had been fortified.
• The closest airport to Heligoland Airport (HGL) is Wangerooge Airport (AGE), which is located 28 miles (45 kilometers) S of HGL.

Facts about Henry Post Army Airfield (FSI):

• Henry Post Army Airfield (FSI) currently has only 1 runway.
• Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
• As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
• After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
• 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.
• 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.
• There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
• The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.