Nonstop flight route between Salmon Arm, British Columbia, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from YSN to FSI:
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- About this route
- YSN Airport Information
- FSI Airport Information
- Facts about YSN
- Facts about FSI
- Map of Nearest Airports to YSN
- List of Nearest Airports to YSN
- Map of Furthest Airports from YSN
- List of Furthest Airports from YSN
- 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 Salmon Arm Airport (YSN), Salmon Arm, British Columbia, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,521 miles (or 2,449 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 Salmon Arm 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: | YSN / CZAM |
Airport Name: | Salmon Arm Airport |
Location: | Salmon Arm, British Columbia, Canada |
GPS Coordinates: | 50°40'56"N by 119°13'42"W |
Operator/Owner: | City of Salmon Arm |
Airport Type: | Public |
Elevation: | 1751 feet (534 meters) |
# of Runways: | 1 |
View all routes: | Routes from YSN |
More Information: | YSN 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 Salmon Arm Airport (YSN):
- The closest airport to Salmon Arm Airport (YSN) is Vernon Regional Airport (YVE), which is located 30 miles (49 kilometers) S of YSN.
- Salmon Arm Airport (YSN) currently has only 1 runway.
- The furthest airport from Salmon Arm Airport (YSN) is Tôlanaro Airport (FTU), which is located 10,519 miles (16,928 kilometers) away in Tôlanaro, Madagascar.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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 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.
- 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 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.