Nonstop flight route between Fort Sill, Oklahoma, United States and Gisenyi, Rwanda:
Departure Airport:

Arrival Airport:

Distance from FSI to GYI:
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- About this route
- FSI Airport Information
- GYI Airport Information
- Facts about FSI
- Facts about GYI
- 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 GYI
- List of Nearest Airports to GYI
- Map of Furthest Airports from GYI
- List of Furthest Airports from GYI
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Gisenyi Airport (GYI), Gisenyi, Rwanda would travel a Great Circle distance of 8,379 miles (or 13,485 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 Gisenyi 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 Gisenyi 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: | GYI / HRYG |
Airport Name: | Gisenyi Airport |
Location: | Gisenyi, Rwanda |
GPS Coordinates: | 1°40'48"S by 29°15'29"E |
Area Served: | Gisenyi, Rwanda |
Operator/Owner: | Rwanda Civil Aviation Authority |
Airport Type: | Public, Civilian |
Elevation: | 5082 feet (1,549 meters) |
# of Runways: | 1 |
View all routes: | Routes from GYI |
More Information: | GYI Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Post Field served as a base for flight training for the Air Service.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- 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.
- 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.
Facts about Gisenyi Airport (GYI):
- The closest airport to Gisenyi Airport (GYI) is Goma Airport (GOM), which is located only 2 miles (2 kilometers) WNW of GYI.
- Because of Gisenyi Airport's high elevation of 5,082 feet, planes must typically fly at a faster airspeed in order to takeoff or land at GYI. Combined with a high temperature, this could make GYI a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Gisenyi Airport (GYI) currently has only 1 runway.
- Gisenyi Airport, is located in Rwanda's Western Province, in Rubavu District, in the town of Gisenyi, at the International border with the Democratic Republic of the Congo.
- The furthest airport from Gisenyi Airport (GYI) is Cassidy International Airport (CXI), which is located 11,980 miles (19,280 kilometers) away in Christmas Island, Kiribati.