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

Arrival Airport:

Distance from XKS to FSI:
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- About this route
- XKS Airport Information
- FSI Airport Information
- Facts about XKS
- Facts about FSI
- Map of Nearest Airports to XKS
- List of Nearest Airports to XKS
- Map of Furthest Airports from XKS
- List of Furthest Airports from XKS
- 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 Kasabonika Airport (XKS), Kasabonika First Nation, Ontario, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,388 miles (or 2,234 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 Kasabonika 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: | XKS / CYAQ |
Airport Name: | Kasabonika Airport |
Location: | Kasabonika First Nation, Ontario, Canada |
GPS Coordinates: | 53°31'28"N by 88°38'35"W |
Operator/Owner: | Government of Ontario |
Airport Type: | Public |
Elevation: | 672 feet (205 meters) |
# of Runways: | 1 |
View all routes: | Routes from XKS |
More Information: | XKS 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 Kasabonika Airport (XKS):
- Because of Kasabonika Airport's relatively low elevation of 672 feet, planes can take off or land at Kasabonika 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.
- The closest airport to Kasabonika Airport (XKS) is Big Trout Lake Airport (YTL), which is located 55 miles (89 kilometers) WNW of XKS.
- Kasabonika Airport (XKS) currently has only 1 runway.
- The furthest airport from Kasabonika Airport (XKS) is Margaret River Airport (MGV), which is located 10,654 miles (17,147 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- 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.