Nonstop flight route between Fort Sill, Oklahoma, United States and Gunnedah, New South Wales, Australia:
Departure Airport:

Arrival Airport:

Distance from FSI to GUH:
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- About this route
- FSI Airport Information
- GUH Airport Information
- Facts about FSI
- Facts about GUH
- 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 GUH
- List of Nearest Airports to GUH
- Map of Furthest Airports from GUH
- List of Furthest Airports from GUH
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Gunnedah Airport (GUH), Gunnedah, New South Wales, Australia would travel a Great Circle distance of 8,521 miles (or 13,712 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 Gunnedah 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 Gunnedah 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: | GUH / YGDH |
Airport Name: | Gunnedah Airport |
Location: | Gunnedah, New South Wales, Australia |
GPS Coordinates: | 30°57'42"S by 150°15'0"E |
Operator/Owner: | Gunnedah Shire Council |
Airport Type: | Public |
Elevation: | 863 feet (263 meters) |
# of Runways: | 2 |
View all routes: | Routes from GUH |
More Information: | GUH Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.
- 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.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
Facts about Gunnedah Airport (GUH):
- The furthest airport from Gunnedah Airport (GUH) is Santa Maria Airport (SMA), which is located 11,946 miles (19,225 kilometers) away in Santa Maria, Portugal.
- Because of Gunnedah Airport's relatively low elevation of 863 feet, planes can take off or land at Gunnedah 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 Gunnedah Airport (GUH) is Tamworth Airport (TMW), which is located 36 miles (59 kilometers) ESE of GUH.
- Gunnedah Airport (GUH) has 2 runways.