Nonstop flight route between Garissa, Kenya and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GAS to FSI:
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- About this route
- GAS Airport Information
- FSI Airport Information
- Facts about GAS
- Facts about FSI
- Map of Nearest Airports to GAS
- List of Nearest Airports to GAS
- Map of Furthest Airports from GAS
- List of Furthest Airports from GAS
- 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 Garissa Airport (GAS), Garissa, Kenya and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 8,848 miles (or 14,239 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 Garissa 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 Garissa 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:
IATA / ICAO Codes: | GAS / HKGA |
Airport Name: | Garissa Airport |
Location: | Garissa, Kenya |
GPS Coordinates: | 0°28'6"S by 39°38'57"E |
Area Served: | Garissa, Kenya |
Operator/Owner: | Kenya Airports Authority |
Airport Type: | Public, Civilian |
Elevation: | 476 feet (145 meters) |
View all routes: | Routes from GAS |
More Information: | GAS 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 Garissa Airport (GAS):
- Garissa Airport is a small civilian airport, serving Garissa and surrounding communities.
- The furthest airport from Garissa Airport (GAS) is Atuona Airport (AUQ), which is located 11,724 miles (18,867 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- Because of Garissa Airport's relatively low elevation of 476 feet, planes can take off or land at Garissa 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 closest airport to Garissa Airport (GAS) is Hola Airport (HOA), which is located 77 miles (123 kilometers) SSE of GAS.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.