Nonstop flight route between Thompson, Manitoba, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from YTH to FSI:
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- About this route
- YTH Airport Information
- FSI Airport Information
- Facts about YTH
- Facts about FSI
- Map of Nearest Airports to YTH
- List of Nearest Airports to YTH
- Map of Furthest Airports from YTH
- List of Furthest Airports from YTH
- Map of Nearest Airports to FSI
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- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Thompson Municipal Airport (YTH), Thompson, Manitoba, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,462 miles (or 2,353 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 Thompson Municipal 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: | YTH / CYTH |
Airport Name: | Thompson Municipal Airport |
Location: | Thompson, Manitoba, Canada |
GPS Coordinates: | 55°48'16"N by 97°51'44"W |
Area Served: | Thompson, Manitoba |
Operator/Owner: | Thompson Regional Airport Authority |
Airport Type: | Public |
Elevation: | 735 feet (224 meters) |
# of Runways: | 2 |
View all routes: | Routes from YTH |
More Information: | YTH 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 Thompson Municipal Airport (YTH):
- Because of Thompson Municipal Airport's relatively low elevation of 735 feet, planes can take off or land at Thompson Municipal 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.
- Thompson Airport was developed originally by the International Nickel Company in 1961 to support their mining operations and had one runway 3,000 ft in length.
- The closest airport to Thompson Municipal Airport (YTH) is Thicket Portage Airport (YTD), which is located 34 miles (55 kilometers) S of YTH.
- Thompson Municipal Airport (YTH) has 2 runways.
- The furthest airport from Thompson Municipal Airport (YTH) is Margaret River Airport (MGV), which is located 10,263 miles (16,516 kilometers) away in Margaret River, Western Australia, Australia.
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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.