Nonstop flight route between Fort Sill, Oklahoma, United States and Olney, Texas, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to ONY:
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- About this route
- FSI Airport Information
- ONY Airport Information
- Facts about FSI
- Facts about ONY
- 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 ONY
- List of Nearest Airports to ONY
- Map of Furthest Airports from ONY
- List of Furthest Airports from ONY
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Olney Municipal Airport (ONY), Olney, Texas, United States would travel a Great Circle distance of 91 miles (or 146 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 Olney 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: | ONY / KONY |
Airport Name: | Olney Municipal Airport |
Location: | Olney, Texas, United States |
GPS Coordinates: | 33°22'5"N by 98°45'29"W |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from ONY |
More Information: | ONY Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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 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.
Facts about Olney Municipal Airport (ONY):
- The climate in this area is characterized by hot, humid summers and generally mild to cool winters.
- The closest airport to Olney Municipal Airport (ONY) is Kickapoo Downtown Airport (KIP), which is located 37 miles (60 kilometers) NNE of ONY.
- There were 1,405 households out of which 31.0% had children under the age of 18 living with them, 47.3% were married couples living together, 12.9% had a female householder with no husband present, and 36.2% were non-families.
- The furthest airport from Olney Municipal Airport (ONY) is Sir Gaëtan Duval Airport (RRG), which is located 10,990 miles (17,687 kilometers) away in Rodrigues Island, Mauritius.
- Because of Olney Municipal Airport's relatively low elevation of 0 feet, planes can take off or land at Olney 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 south side of Olney's Main Street, Texas State Highway 114.