Nonstop flight route between Fort Sill, Oklahoma, United States and Wollaston Lake, Saskatchewan, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to ZWL:
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- About this route
- FSI Airport Information
- ZWL Airport Information
- Facts about FSI
- Facts about ZWL
- 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 ZWL
- List of Nearest Airports to ZWL
- Map of Furthest Airports from ZWL
- List of Furthest Airports from ZWL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Wollaston Lake Airport (ZWL), Wollaston Lake, Saskatchewan, Canada would travel a Great Circle distance of 1,636 miles (or 2,632 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 Wollaston Lake 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: | ZWL / CZWL |
Airport Name: | Wollaston Lake Airport |
Location: | Wollaston Lake, Saskatchewan, Canada |
GPS Coordinates: | 58°6'24"N by 103°10'20"W |
Operator/Owner: | Ministry of Highways & Infrastructure |
Airport Type: | Public |
Elevation: | 1358 feet (414 meters) |
# of Runways: | 1 |
View all routes: | Routes from ZWL |
More Information: | ZWL Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
Facts about Wollaston Lake Airport (ZWL):
- The furthest airport from Wollaston Lake Airport (ZWL) is Margaret River Airport (MGV), which is located 10,011 miles (16,111 kilometers) away in Margaret River, Western Australia, Australia.
- Wollaston Lake Airport (ZWL) currently has only 1 runway.
- Charter Air Service is provided by Transwest Air,West Wind Aviation, Osprey Wings and Courtesy Air.
- The closest airport to Wollaston Lake Airport (ZWL) is Collins Bay Airport (YKC), which is located 20 miles (33 kilometers) WNW of ZWL.