Nonstop flight route between Fort Sill, Oklahoma, United States and Obre Lake, Northwest Territories, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to YDW:
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- About this route
- FSI Airport Information
- YDW Airport Information
- Facts about FSI
- Facts about YDW
- 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 YDW
- List of Nearest Airports to YDW
- Map of Furthest Airports from YDW
- List of Furthest Airports from YDW
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Obre Lake/North of Sixty Airport (YDW), Obre Lake, Northwest Territories, Canada would travel a Great Circle distance of 1,786 miles (or 2,874 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 Obre Lake/North of Sixty 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: | YDW / |
Airport Names: |
|
Location: | Obre Lake, Northwest Territories, Canada |
GPS Coordinates: | 60°18'56"N by 103°7'54"W |
Operator/Owner: | North of Sixty Fishing Camps |
Airport Type: | Private |
Elevation: | 1202 feet (366 meters) |
# of Runways: | 1 |
View all routes: | Routes from YDW |
More Information: | YDW 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 first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- 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 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
Facts about Obre Lake/North of Sixty Airport (YDW):
- The closest airport to Obre Lake/North of Sixty Airport (YDW) is Stony Rapids Airport (YSF), which is located 120 miles (192 kilometers) SW of YDW.
- In addition to being known as "Obre Lake/North of Sixty Airport", another name for YDW is "CKV4".
- Obre Lake/North of Sixty Airport (YDW) currently has only 1 runway.
- The furthest airport from Obre Lake/North of Sixty Airport (YDW) is Margaret River Airport (MGV), which is located 9,941 miles (15,998 kilometers) away in Margaret River, Western Australia, Australia.