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

Arrival Airport:

Distance from FSI to YIO:
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- About this route
- FSI Airport Information
- YIO Airport Information
- Facts about FSI
- Facts about YIO
- 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 YIO
- List of Nearest Airports to YIO
- Map of Furthest Airports from YIO
- List of Furthest Airports from YIO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Pond Inlet Airport (YIO), Pond Inlet, Nunavut, Canada would travel a Great Circle distance of 2,726 miles (or 4,387 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 Pond Inlet 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 Pond Inlet 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: | YIO / CYIO |
Airport Name: | Pond Inlet Airport |
Location: | Pond Inlet, Nunavut, Canada |
GPS Coordinates: | 72°41'21"N by 77°58'8"W |
Operator/Owner: | Government of Nunavut |
Airport Type: | Public |
Elevation: | 202 feet (62 meters) |
# of Runways: | 1 |
View all routes: | Routes from YIO |
More Information: | YIO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 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.
- Post Field served as a base for flight training for the Air Service.
- 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.
- 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.
Facts about Pond Inlet Airport (YIO):
- The closest airport to Pond Inlet Airport (YIO) is Nanisivik Airport (YSR), which is located 137 miles (220 kilometers) WNW of YIO.
- Pond Inlet Airport (YIO) currently has only 1 runway.
- The furthest airport from Pond Inlet Airport (YIO) is Hobart International Airport (HBA), which is located 9,903 miles (15,938 kilometers) away in Hobart, Tasmania, Australia.
- Because of Pond Inlet Airport's relatively low elevation of 202 feet, planes can take off or land at Pond Inlet 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.