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

Arrival Airport:

Distance from YCN to FSI:
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- About this route
- YCN Airport Information
- FSI Airport Information
- Facts about YCN
- Facts about FSI
- Map of Nearest Airports to YCN
- List of Nearest Airports to YCN
- Map of Furthest Airports from YCN
- List of Furthest Airports from YCN
- 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 Cochrane Airport (YCN), Cochrane, Ontario, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,334 miles (or 2,147 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 Cochrane 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: | YCN / CYCN |
Airport Name: | Cochrane Airport |
Location: | Cochrane, Ontario, Canada |
GPS Coordinates: | 49°6'24"N by 81°0'55"W |
Operator/Owner: | Town of Cochrane |
Airport Type: | Public |
Elevation: | 862 feet (263 meters) |
# of Runways: | 1 |
View all routes: | Routes from YCN |
More Information: | YCN 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 Cochrane Airport (YCN):
- Because of Cochrane Airport's relatively low elevation of 862 feet, planes can take off or land at Cochrane 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.
- Cochrane Airport (YCN) currently has only 1 runway.
- The closest airport to Cochrane Airport (YCN) is Timmins Victor M. Power Airport (YTS), which is located 41 miles (65 kilometers) SSW of YCN.
- The furthest airport from Cochrane Airport (YCN) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 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 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.
- 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.