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

Arrival Airport:

Distance from FSI to GAS:
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- About this route
- FSI Airport Information
- GAS Airport Information
- Facts about FSI
- Facts about 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
- Map of Nearest Airports to GAS
- List of Nearest Airports to GAS
- Map of Furthest Airports from GAS
- List of Furthest Airports from GAS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Garissa Airport (GAS), Garissa, Kenya 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 Henry Post Army Airfield and Garissa 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 Garissa 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: | 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 |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- Post Field served as a base for flight training for the Air Service.
- 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.
- 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.
Facts about Garissa Airport (GAS):
- 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.
- Its location is approximately 315 kilometres, by air, north of Nairobi International Airport, the country's largest civilian airport.
- 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.