Nonstop flight route between Fort Sill, Oklahoma, United States and Grise Fiord, Nunavut, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to YGZ:
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- About this route
- FSI Airport Information
- YGZ Airport Information
- Facts about FSI
- Facts about YGZ
- 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 YGZ
- List of Nearest Airports to YGZ
- Map of Furthest Airports from YGZ
- List of Furthest Airports from YGZ
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Grise Fiord Airport (YGZ), Grise Fiord, Nunavut, Canada would travel a Great Circle distance of 2,928 miles (or 4,712 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 large distance between Henry Post Army Airfield and Grise Fiord Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Henry Post Army Airfield and Grise Fiord Airport. You'll see that it will travel the same route of the red line on this map!
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: | YGZ / CYGZ |
Airport Name: | Grise Fiord Airport |
Location: | Grise Fiord, Nunavut, Canada |
GPS Coordinates: | 76°25'33"N by 82°54'33"W |
Operator/Owner: | Government of Nunavut |
Airport Type: | Public |
Elevation: | 135 feet (41 meters) |
# of Runways: | 1 |
View all routes: | Routes from YGZ |
More Information: | YGZ 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
Facts about Grise Fiord Airport (YGZ):
- The closest airport to Grise Fiord Airport (YGZ) is Siorapaluk Heliport (SRK), which is located 209 miles (336 kilometers) ENE of YGZ.
- The furthest airport from Grise Fiord Airport (YGZ) is Hobart International Airport (HBA), which is located 9,701 miles (15,612 kilometers) away in Hobart, Tasmania, Australia.
- Because of Grise Fiord Airport's relatively low elevation of 135 feet, planes can take off or land at Grise Fiord 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.
- Grise Fiord Airport (YGZ) currently has only 1 runway.