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

Arrival Airport:

Distance from YHF to FSI:
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- About this route
- YHF Airport Information
- FSI Airport Information
- Facts about YHF
- Facts about FSI
- Map of Nearest Airports to YHF
- List of Nearest Airports to YHF
- Map of Furthest Airports from YHF
- List of Furthest Airports from YHF
- 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 Hearst (René Fontaine) Municipal Airport (YHF), Hearst, Ontario, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,280 miles (or 2,060 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 Hearst (René Fontaine) Municipal 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: | YHF / CYHF |
Airport Name: | Hearst (René Fontaine) Municipal Airport |
Location: | Hearst, Ontario, Canada |
GPS Coordinates: | 49°42'50"N by 83°41'12"W |
Area Served: | Hearst |
Operator/Owner: | Corporation of the Town of Hearst |
Airport Type: | Public |
Elevation: | 826 feet (252 meters) |
# of Runways: | 1 |
View all routes: | Routes from YHF |
More Information: | YHF 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 Hearst (René Fontaine) Municipal Airport (YHF):
- The closest airport to Hearst (René Fontaine) Municipal Airport (YHF) is Kapuskasing Airport (YYU), which is located 58 miles (94 kilometers) ESE of YHF.
- Hearst (René Fontaine) Municipal Airport (YHF) currently has only 1 runway.
- There are two helipads located next to the terminal.
- Because of Hearst (René Fontaine) Municipal Airport's relatively low elevation of 826 feet, planes can take off or land at Hearst (René Fontaine) Municipal 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 furthest airport from Hearst (René Fontaine) Municipal Airport (YHF) is Margaret River Airport (MGV), which is located 10,987 miles (17,682 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941