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

Arrival Airport:

Distance from TOP to FSI:
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- About this route
- TOP Airport Information
- FSI Airport Information
- Facts about TOP
- Facts about FSI
- Map of Nearest Airports to TOP
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- Map of Furthest Airports from TOP
- List of Furthest Airports from TOP
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
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About this route:
A direct, nonstop flight between Philip Billard Municipal Airport (TOP), Topeka, Kansas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, 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 Philip Billard Municipal Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
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 Philip Billard Municipal Airport (TOP):
- 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.
- 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.
- Philip Billard Municipal Airport (TOP) has 3 runways.
- It was Topeka's airline airport until 1976.
- The closest airport to Philip Billard Municipal Airport (TOP) is Lawrence Municipal Airport (LWC), which is located 22 miles (36 kilometers) E of TOP.
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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- 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.