Nonstop flight route between Fort Sill, Oklahoma, United States and Terrace Bay, Ontario, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to YTJ:
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- About this route
- FSI Airport Information
- YTJ Airport Information
- Facts about FSI
- Facts about YTJ
- 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 YTJ
- List of Nearest Airports to YTJ
- Map of Furthest Airports from YTJ
- List of Furthest Airports from YTJ
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Terrace Bay Airport (YTJ), Terrace Bay, Ontario, Canada would travel a Great Circle distance of 1,136 miles (or 1,829 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 Terrace Bay 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: | YTJ / CYTJ |
Airport Name: | Terrace Bay Airport |
Location: | Terrace Bay, Ontario, Canada |
GPS Coordinates: | 48°48'47"N by 87°5'57"W |
Operator/Owner: | Township of Terrace Bay |
Airport Type: | Public |
Elevation: | 950 feet (290 meters) |
# of Runways: | 1 |
View all routes: | Routes from YTJ |
More Information: | YTJ Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
Facts about Terrace Bay Airport (YTJ):
- The closest airport to Terrace Bay Airport (YTJ) is Marathon Aerodrome (YSP), which is located 35 miles (56 kilometers) E of YTJ.
- Because of Terrace Bay Airport's relatively low elevation of 950 feet, planes can take off or land at Terrace Bay 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.
- Terrace Bay Airport (YTJ) currently has only 1 runway.
- The furthest airport from Terrace Bay Airport (YTJ) is Margaret River Airport (MGV), which is located 10,904 miles (17,548 kilometers) away in Margaret River, Western Australia, Australia.