Nonstop flight route between Fort Sill, Oklahoma, United States and Topeka, Kansas, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to TOP:
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- About this route
- FSI Airport Information
- TOP Airport Information
- Facts about FSI
- Facts about TOP
- 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 TOP
- List of Nearest Airports to TOP
- Map of Furthest Airports from TOP
- List of Furthest Airports from TOP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Philip Billard Municipal Airport (TOP), Topeka, Kansas, United States would travel a Great Circle distance of 342 miles (or 550 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 relatively short distance between Henry Post Army Airfield and Philip Billard Municipal Airport, the route shown on this map most likely still appears to be a straight line.
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: | TOP / KTOP |
Airport Name: | Philip Billard Municipal Airport |
Location: | Topeka, Kansas, United States |
GPS Coordinates: | 39°4'6"N by 95°37'21"W |
Operator/Owner: | Metropolitan Topeka Airport Authority |
Airport Type: | Public |
Elevation: | 881 feet (269 meters) |
# of Runways: | 3 |
View all routes: | Routes from TOP |
More Information: | TOP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- 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.
- 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 (FSI) currently has only 1 runway.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
Facts about Philip Billard Municipal Airport (TOP):
- Because of Philip Billard Municipal Airport's relatively low elevation of 881 feet, planes can take off or land at Philip Billard Municipal 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 Philip Billard Municipal Airport (TOP) is Lawrence Municipal Airport (LWC), which is located 22 miles (36 kilometers) E of TOP.
- Philip Billard Municipal Airport (TOP) has 3 runways.
- The furthest airport from Philip Billard Municipal Airport (TOP) is Margaret River Airport (MGV), which is located 10,703 miles (17,224 kilometers) away in Margaret River, Western Australia, Australia.