Nonstop flight route between Ittoqqortoormiit, Greenland and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from OBY to FSI:
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- About this route
- OBY Airport Information
- FSI Airport Information
- Facts about OBY
- Facts about FSI
- Map of Nearest Airports to OBY
- List of Nearest Airports to OBY
- Map of Furthest Airports from OBY
- List of Furthest Airports from OBY
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Ittoqqortoormiit Heliport (OBY), Ittoqqortoormiit, Greenland and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,669 miles (or 5,905 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 Ittoqqortoormiit Heliport 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 Ittoqqortoormiit Heliport 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:
IATA / ICAO Codes: | OBY / BGSC |
Airport Name: | Ittoqqortoormiit Heliport |
Location: | Ittoqqortoormiit, Greenland |
GPS Coordinates: | 70°29'17"N by 21°58'18"W |
Area Served: | Ittoqqortoormiit, Greenland |
Operator/Owner: | Mittarfeqarfiit |
Airport Type: | Public |
Elevation: | 238 feet (73 meters) |
View all routes: | Routes from OBY |
More Information: | OBY Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Facts about Ittoqqortoormiit Heliport (OBY):
- Because of Ittoqqortoormiit Heliport's relatively low elevation of 238 feet, planes can take off or land at Ittoqqortoormiit Heliport 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 Ittoqqortoormiit Heliport (OBY) is Ryan's Creek Aerodrome (SZS), which is located 10,773 miles (17,337 kilometers) away in Stewart Island, New Zealand.
- Ittoqqortoormiit Heliport handled 834 passengers last year.
- The closest airport to Ittoqqortoormiit Heliport (OBY) is Nerlerit Inaat Airport (CNP), which is located 23 miles (38 kilometers) NW of OBY.
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.