Nonstop flight route between Fort Sill, Oklahoma, United States and Ampanihy, Madagascar:
Departure Airport:

Arrival Airport:

Distance from FSI to AMP:
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- About this route
- FSI Airport Information
- AMP Airport Information
- Facts about FSI
- Facts about AMP
- 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 AMP
- List of Nearest Airports to AMP
- Map of Furthest Airports from AMP
- List of Furthest Airports from AMP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ampanihy Airport (AMP), Ampanihy, Madagascar would travel a Great Circle distance of 10,134 miles (or 16,309 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 Ampanihy 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 Ampanihy 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: | AMP / FMSY |
Airport Name: | Ampanihy Airport |
Location: | Ampanihy, Madagascar |
GPS Coordinates: | 24°41'58"S by 44°43'59"E |
View all routes: | Routes from AMP |
More Information: | AMP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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 Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
Facts about Ampanihy Airport (AMP):
- The closest airport to Ampanihy Airport (AMP) is Tôlanaro Airport (FTU), which is located 141 miles (227 kilometers) E of AMP.
- The furthest airport from Ampanihy Airport (AMP) is Vandenberg Air Force Base (VBG), which is located 11,317 miles (18,213 kilometers) away in Lompoc, California, United States.