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

Arrival Airport:

Distance from FSI to YLD:
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- About this route
- FSI Airport Information
- YLD Airport Information
- Facts about FSI
- Facts about 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
- Map of Nearest Airports to YLD
- List of Nearest Airports to YLD
- Map of Furthest Airports from YLD
- List of Furthest Airports from YLD
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Chapleau Airport (YLD), Chapleau, Ontario, Canada 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 Henry Post Army Airfield and Chapleau 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: | 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 |
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- 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.
- 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.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 Chapleau Airport (YLD):
- 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.
- 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.