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

Arrival Airport:

Distance from FSI to YQL:
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- About this route
- FSI Airport Information
- YQL Airport Information
- Facts about FSI
- Facts about YQL
- 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 YQL
- List of Nearest Airports to YQL
- Map of Furthest Airports from YQL
- List of Furthest Airports from YQL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lethbridge Airport (YQL), Lethbridge, Alberta, Canada would travel a Great Circle distance of 1,266 miles (or 2,038 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 Lethbridge 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: | YQL / CYQL |
Airport Name: | Lethbridge Airport |
Location: | Lethbridge, Alberta, Canada |
GPS Coordinates: | 49°37'49"N by 112°47'58"W |
Area Served: | Lethbridge |
Operator/Owner: | Lethbridge County |
Airport Type: | Public |
Elevation: | 3048 feet (929 meters) |
# of Runways: | 2 |
View all routes: | Routes from YQL |
More Information: | YQL 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.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
Facts about Lethbridge Airport (YQL):
- On 26 July 2009, the Evergreen Supertanker successfully landed and took off from runway 05 as part of the 2009 airshow, marking the first time a Boeing 747 has used this airport.
- Lethbridge Airport (YQL) has 2 runways.
- Time Air was a regional airline that was initially based in Lethbridge.
- Aircraft services are available through Airwest Flight Support and Southern Aero Aviation/Lethbridge Esso.
- Originally known as Kenyon Field, this aerodrome began passenger services in October 1938, but officially opened in June 1939.
- In 1947, the RCAF's mess hall was converted by the Department of Transportation into an Air Terminal Building, which was replaced by the current facility in 1979.
- The closest airport to Lethbridge Airport (YQL) is Pincher Creek Airport (WPC), which is located 54 miles (87 kilometers) W of YQL.
- The furthest airport from Lethbridge Airport (YQL) is Tôlanaro Airport (FTU), which is located 10,420 miles (16,770 kilometers) away in Tôlanaro, Madagascar.