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

Arrival Airport:

Distance from ONY to FSI:
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- About this route
- ONY Airport Information
- FSI Airport Information
- Facts about ONY
- Facts about 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
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
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About this route:
A direct, nonstop flight between Olney Municipal Airport (ONY), Olney, Texas, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, 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 Olney 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: | 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 |
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 Olney Municipal Airport (ONY):
- 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.
- Olney is the home of the One-Arm Dove Hunt.
- Olney is a city in Young County, Texas, United States.
- The closest airport to Olney Municipal Airport (ONY) is Kickapoo Downtown Airport (KIP), which is located 37 miles (60 kilometers) NNE of ONY.
- According to the United States Census Bureau, the city has a total area of 2.0 square miles, all of it land.
- 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 climate in this area is characterized by hot, humid summers and generally mild to cool winters.
- The south side of Olney's Main Street, Texas State Highway 114.
Facts about Henry Post Army Airfield (FSI):
- 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- 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 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Post Field served as a base for flight training for the Air Service.
- 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.