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

Arrival Airport:

Distance from FSI to MCG:
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- About this route
- FSI Airport Information
- MCG Airport Information
- Facts about FSI
- Facts about MCG
- 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 MCG
- List of Nearest Airports to MCG
- Map of Furthest Airports from MCG
- List of Furthest Airports from MCG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and McGrath Airport (MCG), McGrath, Alaska, United States would travel a Great Circle distance of 3,099 miles (or 4,987 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 McGrath 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 McGrath 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: | MCG / PAMC |
Airport Names: |
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Location: | McGrath, Alaska, United States |
GPS Coordinates: | 62°57'10"N by 155°36'24"W |
Area Served: | McGrath, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 341 feet (104 meters) |
# of Runways: | 2 |
View all routes: | Routes from MCG |
More Information: | MCG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
Facts about McGrath Airport (MCG):
- The facility covers an area of 641 acres at an elevation of 341 feet above mean sea level.
- The closest airport to McGrath Airport (MCG) is Tatalina LRRS Airport (TLJ), which is located only 12 miles (20 kilometers) WSW of MCG.
- McGrath Airport is a state-owned public-use airport serving McGrath, a city in the Yukon-Koyukuk Census Area of the U.S.
- Because of McGrath Airport's relatively low elevation of 341 feet, planes can take off or land at McGrath 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.
- In addition to being known as "McGrath Airport", another name for MCG is "(formerly McGrath Army Airbase)".
- The furthest airport from McGrath Airport (MCG) is George Airport (GRJ), which is located 10,435 miles (16,793 kilometers) away in George, South Africa.
- McGrath Airport (MCG) has 2 runways.