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

Arrival Airport:

Distance from YXU to FSI:
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- About this route
- YXU Airport Information
- FSI Airport Information
- Facts about YXU
- Facts about FSI
- Map of Nearest Airports to YXU
- List of Nearest Airports to YXU
- Map of Furthest Airports from YXU
- List of Furthest Airports from YXU
- 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 London international Airport (YXU), London, Ontario, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,091 miles (or 1,756 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 London international 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: | YXU / CYXU |
Airport Names: |
|
Location: | London, Ontario, Canada |
GPS Coordinates: | 43°1'59"N by 81°9'3"W |
Area Served: | London, Ontario |
Operator/Owner: | Transport Canada |
Airport Type: | Public |
Elevation: | 912 feet (278 meters) |
# of Runways: | 2 |
View all routes: | Routes from YXU |
More Information: | YXU 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 London international Airport (YXU):
- London international Airport (YXU) has 2 runways.
- The closest airport to London international Airport (YXU) is St. Thomas Municipal Airport (YQS), which is located only 18 miles (29 kilometers) S of YXU.
- Because of London international Airport's relatively low elevation of 912 feet, planes can take off or land at London 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.
- In addition to being known as "London international Airport", another name for YXU is "London Metropolitan Area Airport".
- The furthest airport from London international Airport (YXU) is Margaret River Airport (MGV), which is located 11,359 miles (18,281 kilometers) away in Margaret River, Western Australia, Australia.
- The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency.
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.
- 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.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.