Nonstop flight route between Owen Sound, Ontario, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from YOS to FSI:
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- About this route
- YOS Airport Information
- FSI Airport Information
- Facts about YOS
- Facts about FSI
- Map of Nearest Airports to YOS
- List of Nearest Airports to YOS
- Map of Furthest Airports from YOS
- List of Furthest Airports from YOS
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Owen Sound/Billy Bishop Regional Airport (YOS), Owen Sound, Ontario, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,156 miles (or 1,860 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 Owen Sound/Billy Bishop Regional 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: | YOS / CYOS |
Airport Names: |
|
Location: | Owen Sound, Ontario, Canada |
GPS Coordinates: | 44°35'26"N by 80°50'17"W |
Operator/Owner: | City of Owen Sound |
Airport Type: | Public |
Elevation: | 1008 feet (307 meters) |
# of Runways: | 1 |
View all routes: | Routes from YOS |
More Information: | YOS 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 Owen Sound/Billy Bishop Regional Airport (YOS):
- The furthest airport from Owen Sound/Billy Bishop Regional Airport (YOS) is Margaret River Airport (MGV), which is located 11,314 miles (18,208 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Owen Sound/Billy Bishop Regional Airport (YOS) is Wiarton Airport (YVV), which is located only 17 miles (27 kilometers) NW of YOS.
- Owen Sound/Billy Bishop Regional Airport (YOS) currently has only 1 runway.
- In addition to being known as "Owen Sound/Billy Bishop Regional Airport", another name for YOS is "Owen Sound (Billy Bishop) Regional Airport".
- In November 2009, the Toronto City Centre Airport renamed itself after Billy Bishop, creating confusion with this airport.
Facts about Henry Post Army Airfield (FSI):
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Henry Post Army Airfield (FSI) currently has only 1 runway.