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

Arrival Airport:

Distance from FSI to YOW:
Share this route:
Jump to:
- About this route
- FSI Airport Information
- YOW Airport Information
- Facts about FSI
- Facts about YOW
- 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 YOW
- List of Nearest Airports to YOW
- Map of Furthest Airports from YOW
- List of Furthest Airports from YOW
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ottawa Macdonald–Cartier International Airport (YOW), Ottawa, Ontario, Canada would travel a Great Circle distance of 1,404 miles (or 2,260 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 Ottawa Macdonald–Cartier 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: | YOW / CYOW |
Airport Name: | Ottawa Macdonald–Cartier International Airport |
Location: | Ottawa, Ontario, Canada |
GPS Coordinates: | 45°19'20"N by 75°40'1"W |
Area Served: | Ottawa, Ontario |
Operator/Owner: | Transport Canada |
Airport Type: | Public |
Elevation: | 374 feet (114 meters) |
# of Runways: | 3 |
View all routes: | Routes from YOW |
More Information: | YOW Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Ottawa Macdonald–Cartier International Airport (YOW):
- The furthest airport from Ottawa Macdonald–Cartier International Airport (YOW) is Margaret River Airport (MGV), which is located 11,465 miles (18,451 kilometers) away in Margaret River, Western Australia, Australia.
- Ottawa Macdonald–Cartier International Airport (YOW) has 3 runways.
- In 2003, the Ottawa Macdonald–Cartier International Airport Authority unveiled its new passenger terminal building.
- The closest airport to Ottawa Macdonald–Cartier International Airport (YOW) is Ottawa/Rockcliffe Airport (YRO), which is located only 10 miles (15 kilometers) N of YOW.
- In August 1959, a U.S.
- The airport was originally opened at Uplands on a high plateau south of Ottawa by the Ottawa Flying Club, which still operates from the field.
- Because of Ottawa Macdonald–Cartier International Airport's relatively low elevation of 374 feet, planes can take off or land at Ottawa Macdonald–Cartier 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 2011 it won Best Airport in North America of the Airport Service Quality Awards by Airports Council International, as well as 2nd Best Airport by Size in the 2 to 5 million passenger category.
- On June 13, 1997, a North American Airlines Fairchild Swearingen Metroliner struck the runway with gear retracted during a botched approach, resulting in propellor strikes and a fire in one engine when it came to rest on runway 25.