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

Arrival Airport:

Distance from FSI to MRI:
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- About this route
- FSI Airport Information
- MRI Airport Information
- Facts about FSI
- Facts about MRI
- 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 MRI
- List of Nearest Airports to MRI
- Map of Furthest Airports from MRI
- List of Furthest Airports from MRI
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Merrill Field (MRI), Anchorage, Alaska, United States would travel a Great Circle distance of 2,890 miles (or 4,650 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 Merrill Field, 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 Merrill Field. 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: | MRI / PAMR |
Airport Name: | Merrill Field |
Location: | Anchorage, Alaska, United States |
GPS Coordinates: | 61°12'48"N by 149°50'39"W |
Operator/Owner: | Municipality of Anchorage |
Airport Type: | Public |
Elevation: | 137 feet (42 meters) |
# of Runways: | 3 |
View all routes: | Routes from MRI |
More Information: | MRI Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
Facts about Merrill Field (MRI):
- The airstrip is still in use today as the primary field for private wheel equipped aircraft in the warmer months and for ski equipped in the winter.
- The furthest airport from Merrill Field (MRI) is Port Elizabeth International Airport (PLZ), which is located 10,545 miles (16,970 kilometers) away in Port Elizabeth, South Africa.
- Merrill Field (MRI) has 3 runways.
- Because of Merrill Field's relatively low elevation of 137 feet, planes can take off or land at Merrill Field 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.
- A section of the airport is built over the closed Merrill Field Land Fill.
- The closest airport to Merrill Field (MRI) is Elmendorf Air Force Base (EDF), which is located only 3 miles (5 kilometers) NNE of MRI.