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

Arrival Airport:

Distance from FSI to TMM:
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- About this route
- FSI Airport Information
- TMM Airport Information
- Facts about FSI
- Facts about TMM
- 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 TMM
- List of Nearest Airports to TMM
- Map of Furthest Airports from TMM
- List of Furthest Airports from TMM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Toamasino Airport (TMM), Toamasina, Madagascar would travel a Great Circle distance of 10,154 miles (or 16,342 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 Toamasino 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 Toamasino 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: | TMM / FMMT |
Airport Name: | Toamasino Airport |
Location: | Toamasina, Madagascar |
GPS Coordinates: | 18°6'34"S by 49°23'33"E |
Airport Type: | Public |
Elevation: | 22 feet (7 meters) |
# of Runways: | 1 |
View all routes: | Routes from TMM |
More Information: | TMM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
- 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.
- 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.
- 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.
- 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.
Facts about Toamasino Airport (TMM):
- Toamasino Airport (TMM) currently has only 1 runway.
- The furthest airport from Toamasino Airport (TMM) is Guerrero Negro Airport (GUB), which is located 11,182 miles (17,995 kilometers) away in Guerrero Negro, Baja California Sur, Mexico.
- The closest airport to Toamasino Airport (TMM) is Sainte Marie Airport (SMS), which is located 76 miles (122 kilometers) NNE of TMM.
- Because of Toamasino Airport's relatively low elevation of 22 feet, planes can take off or land at Toamasino 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.