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

Arrival Airport:

Distance from FSI to YYL:
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- About this route
- FSI Airport Information
- YYL Airport Information
- Facts about FSI
- Facts about YYL
- 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 YYL
- List of Nearest Airports to YYL
- Map of Furthest Airports from YYL
- List of Furthest Airports from YYL
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lynn Lake Airport (YYL), Lynn Lake, Manitoba, Canada would travel a Great Circle distance of 1,540 miles (or 2,478 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 Lynn 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: | YYL / CYYL |
Airport Name: | Lynn Lake Airport |
Location: | Lynn Lake, Manitoba, Canada |
GPS Coordinates: | 56°51'51"N by 101°4'33"W |
Operator/Owner: | Town of Lynn Lake |
Airport Type: | Public |
Elevation: | 1170 feet (357 meters) |
# of Runways: | 2 |
View all routes: | Routes from YYL |
More Information: | YYL Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- 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.
Facts about Lynn Lake Airport (YYL):
- The furthest airport from Lynn Lake Airport (YYL) is Margaret River Airport (MGV), which is located 10,119 miles (16,286 kilometers) away in Margaret River, Western Australia, Australia.
- Lynn Lake Airport (YYL) has 2 runways.
- The closest airport to Lynn Lake Airport (YYL) is Laurie River Airport (LRQ), which is located 43 miles (70 kilometers) SSW of YYL.