Nonstop flight route between Fort Sill, Oklahoma, United States and Fort Chipewyan, Alberta, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to YPY:
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- About this route
- FSI Airport Information
- YPY Airport Information
- Facts about FSI
- Facts about YPY
- 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 YPY
- List of Nearest Airports to YPY
- Map of Furthest Airports from YPY
- List of Furthest Airports from YPY
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Fort Chipewyan Airport (YPY), Fort Chipewyan, Alberta, Canada would travel a Great Circle distance of 1,765 miles (or 2,840 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 Fort Chipewyan 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: | YPY / CYPY |
Airport Name: | Fort Chipewyan Airport |
Location: | Fort Chipewyan, Alberta, Canada |
GPS Coordinates: | 58°46'2"N by 111°7'3"W |
Operator/Owner: | Regional Municipality of Wood Buffalo |
Airport Type: | Public |
Elevation: | 761 feet (232 meters) |
# of Runways: | 1 |
View all routes: | Routes from YPY |
More Information: | YPY Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
Facts about Fort Chipewyan Airport (YPY):
- Fort Chipewyan Airport (YPY) currently has only 1 runway.
- The closest airport to Fort Chipewyan Airport (YPY) is Cluff Lake Airport (XCL), which is located 63 miles (102 kilometers) ESE of YPY.
- The furthest airport from Fort Chipewyan Airport (YPY) is Tôlanaro Airport (FTU), which is located 9,874 miles (15,891 kilometers) away in Tôlanaro, Madagascar.
- Because of Fort Chipewyan Airport's relatively low elevation of 761 feet, planes can take off or land at Fort Chipewyan 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.