Nonstop flight route between Fort Sill, Oklahoma, United States and Nioki, Democratic Republic of the Congo:
Departure Airport:

Arrival Airport:

Distance from FSI to NIO:
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- About this route
- FSI Airport Information
- NIO Airport Information
- Facts about FSI
- Facts about NIO
- 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 NIO
- List of Nearest Airports to NIO
- Map of Furthest Airports from NIO
- List of Furthest Airports from NIO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Nioki Airport (NIO), Nioki, Democratic Republic of the Congo would travel a Great Circle distance of 7,797 miles (or 12,548 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 Nioki 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 Nioki 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: | NIO / FZBI |
Airport Name: | Nioki Airport |
Location: | Nioki, Democratic Republic of the Congo |
GPS Coordinates: | 2°43'2"S by 17°41'4"E |
Airport Type: | Public |
Elevation: | 1043 feet (318 meters) |
View all routes: | Routes from NIO |
More Information: | NIO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Post Field served as a base for flight training for the Air Service.
- 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 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
Facts about Nioki Airport (NIO):
- The closest airport to Nioki Airport (NIO) is Bandundu Airport (FDU), which is located 46 miles (74 kilometers) SSW of NIO.
- The furthest airport from Nioki Airport (NIO) is Cassidy International Airport (CXI), which is nearly antipodal to Nioki Airport (meaning Nioki Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,090 miles (19,457 kilometers) away in Christmas Island, Kiribati.