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

Arrival Airport:

Distance from YLD to FSI:
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- About this route
- YLD Airport Information
- FSI Airport Information
- Facts about YLD
- Facts about FSI
- Map of Nearest Airports to YLD
- List of Nearest Airports to YLD
- Map of Furthest Airports from YLD
- List of Furthest Airports from YLD
- 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 Chapleau Airport (YLD), Chapleau, Ontario, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,196 miles (or 1,924 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 Chapleau 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: | YLD / CYLD |
Airport Name: | Chapleau Airport |
Location: | Chapleau, Ontario, Canada |
GPS Coordinates: | 47°49'13"N by 83°20'48"W |
Operator/Owner: | Township of Chapleau |
Airport Type: | Public |
Elevation: | 1470 feet (448 meters) |
# of Runways: | 2 |
View all routes: | Routes from YLD |
More Information: | YLD 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 Chapleau Airport (YLD):
- The closest airport to Chapleau Airport (YLD) is Wawa Airport (YXZ), which is located 67 miles (109 kilometers) W of YLD.
- Chapleau Airport (YLD) has 2 runways.
- The furthest airport from Chapleau Airport (YLD) is Margaret River Airport (MGV), which is located 11,083 miles (17,837 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.