Nonstop flight route between Mary's Harbour, Labrador, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from YMH to FSI:
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- About this route
- YMH Airport Information
- FSI Airport Information
- Facts about YMH
- Facts about FSI
- Map of Nearest Airports to YMH
- List of Nearest Airports to YMH
- Map of Furthest Airports from YMH
- List of Furthest Airports from YMH
- 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 Mary's Harbour Airport (YMH), Mary's Harbour, Labrador, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,409 miles (or 3,878 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 Mary's Harbour 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: | YMH / CYMH |
Airport Name: | Mary's Harbour Airport |
Location: | Mary's Harbour, Labrador, Canada |
GPS Coordinates: | 52°18'10"N by 55°50'52"W |
Operator/Owner: | Government of Newfoundland and Labrador |
Airport Type: | Public |
Elevation: | 35 feet (11 meters) |
# of Runways: | 1 |
View all routes: | Routes from YMH |
More Information: | YMH 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 Mary's Harbour Airport (YMH):
- Because of Mary's Harbour Airport's relatively low elevation of 35 feet, planes can take off or land at Mary's Harbour 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 Mary's Harbour Airport (YMH) is St. Lewis (Fox Harbour) Airport (YFX), which is located only 9 miles (14 kilometers) ENE of YMH.
- Mary's Harbour Airport (YMH) currently has only 1 runway.
- The furthest airport from Mary's Harbour Airport (YMH) is Albany Airport (ALH), which is located 11,197 miles (18,020 kilometers) away in Albany, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- 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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
- 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.