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

Arrival Airport:

Distance from FSI to YYZ:
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- About this route
- FSI Airport Information
- YYZ Airport Information
- Facts about FSI
- Facts about YYZ
- 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 YYZ
- List of Nearest Airports to YYZ
- Map of Furthest Airports from YYZ
- List of Furthest Airports from YYZ
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Toronto Pearson International Airport (YYZ), Mississauga, Ontario, Canada would travel a Great Circle distance of 1,179 miles (or 1,898 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 Toronto Pearson International 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: | YYZ / CYYZ |
Airport Name: | Toronto Pearson International Airport |
Location: | Mississauga, Ontario, Canada |
GPS Coordinates: | 43°40'36"N by 79°37'50"W |
Area Served: | Greater Toronto Area |
Operator/Owner: | Transport Canada |
Airport Type: | Public |
Elevation: | 569 feet (173 meters) |
# of Runways: | 5 |
View all routes: | Routes from YYZ |
More Information: | YYZ 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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 Toronto Pearson International Airport (YYZ):
- Because of Toronto Pearson International Airport's relatively low elevation of 569 feet, planes can take off or land at Toronto Pearson International 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.
- The closest airport to Toronto Pearson International Airport (YYZ) is Billy Bishop Toronto City Airport (YTZ), which is located only 12 miles (20 kilometers) ESE of YYZ.
- The airport's next terminal was built further south of the original site along Airport Road.
- The furthest airport from Toronto Pearson International Airport (YYZ) is Margaret River Airport (MGV), which is located 11,399 miles (18,345 kilometers) away in Margaret River, Western Australia, Australia.
- From June 1940 to July 1942, during the Second World War, the British Commonwealth Air Training Plan operated No.
- Toronto Pearson International Airport (YYZ) has 5 runways.
- Terminal 3 opened in 1991 to offset traffic from Terminals 1 and 2.
- In November 1958, the City of Toronto sold the airport to the federal Department of Transport.
- During the September 11 attacks in 2001, Toronto Pearson was part of Operation Yellow Ribbon, as it received 19 of the diverted flights that were coming into the United States, although Transport Canada and Nav Canada instructed pilots to avoid the airport as a security measure.
- Demolition of Terminal 2 began in April 2007 and concluded in November 2008.
- The second terminal, a standard wood frame building, was built in 1938.