Nonstop flight route between Granite Mountain, Alaska, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from GMT to FSI:
Share this route:
Jump to:
- About this route
- GMT Airport Information
- FSI Airport Information
- Facts about GMT
- Facts about FSI
- Map of Nearest Airports to GMT
- List of Nearest Airports to GMT
- Map of Furthest Airports from GMT
- List of Furthest Airports from GMT
- 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 Granite Mountain Air Station (GMT), Granite Mountain, Alaska, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 3,295 miles (or 5,304 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 Granite Mountain Air Station and Henry Post Army Airfield, 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 Granite Mountain Air Station and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | GMT / PAGZ |
Airport Names: |
|
Location: | Granite Mountain, Alaska, United States |
GPS Coordinates: | 65°24'7"N by 161°16'53"W |
Operator/Owner: | U.S. Government |
Airport Type: | Private |
Elevation: | 1313 feet (400 meters) |
# of Runways: | 1 |
View all routes: | Routes from GMT |
More Information: | GMT 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 Granite Mountain Air Station (GMT):
- The furthest airport from Granite Mountain Air Station (GMT) is Cape Town International Airport (CPT), which is located 10,265 miles (16,520 kilometers) away in Cape Town, South Africa.
- Granite Mountain Air Station (GMT) currently has only 1 runway.
- In addition to being known as "Granite Mountain Air Station", another name for GMT is "GSZ".
- The closest airport to Granite Mountain Air Station (GMT) is Haycock Airport (HAY), which is located only 14 miles (23 kilometers) SSE of GMT.
Facts about Henry Post Army Airfield (FSI):
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- 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 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.
- 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.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.