Nonstop flight route between Fort Sill, Oklahoma, United States and Ghinnir, Ethiopia:
Departure Airport:

Arrival Airport:

Distance from FSI to GNN:
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- About this route
- FSI Airport Information
- GNN Airport Information
- Facts about FSI
- Facts about GNN
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to GNN
- List of Nearest Airports to GNN
- Map of Furthest Airports from GNN
- List of Furthest Airports from GNN
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ghinnir Airport (GNN), Ghinnir, Ethiopia would travel a Great Circle distance of 8,507 miles (or 13,690 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 Ghinnir 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 Ghinnir Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | GNN / HAGH |
Airport Name: | Ghinnir Airport |
Location: | Ghinnir, Ethiopia |
GPS Coordinates: | 7°9'0"N by 40°43'1"E |
Area Served: | Ghinnir |
Elevation: | 6499 feet (1,981 meters) |
View all routes: | Routes from GNN |
More Information: | GNN Maps & Info |
Facts about Henry Post Army Airfield (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.
- 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.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
Facts about Ghinnir Airport (GNN):
- The furthest airport from Ghinnir Airport (GNN) is Atuona Airport (AUQ), which is nearly antipodal to Ghinnir Airport (meaning Ghinnir Airport is almost on the exact opposite side of the Earth from Atuona Airport), and is located 12,255 miles (19,722 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- Because of Ghinnir Airport's high elevation of 6,499 feet, planes must typically fly at a faster airspeed in order to takeoff or land at GNN. Combined with a high temperature, this could make GNN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The closest airport to Ghinnir Airport (GNN) is Robe Airport (GOB), which is located 46 miles (74 kilometers) W of GNN.