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

Arrival Airport:

Distance from FSI to MLC:
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- About this route
- FSI Airport Information
- MLC Airport Information
- Facts about FSI
- Facts about MLC
- 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 MLC
- List of Nearest Airports to MLC
- Map of Furthest Airports from MLC
- List of Furthest Airports from MLC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and McAlester Regional Airport (MLC), McAlester, Oklahoma, United States would travel a Great Circle distance of 150 miles (or 241 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 relatively short distance between Henry Post Army Airfield and McAlester Regional Airport, the route shown on this map most likely still appears to be a straight line.
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: | MLC / KMLC |
Airport Name: | McAlester Regional Airport |
Location: | McAlester, Oklahoma, United States |
GPS Coordinates: | 34°52'57"N by 95°46'59"W |
Area Served: | McAlester, Oklahoma |
Operator/Owner: | City of McAlester |
Airport Type: | Public |
Elevation: | 770 feet (235 meters) |
# of Runways: | 1 |
View all routes: | Routes from MLC |
More Information: | MLC Maps & Info |
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.
- 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.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- 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.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
Facts about McAlester Regional Airport (MLC):
- Because of McAlester Regional Airport's relatively low elevation of 770 feet, planes can take off or land at McAlester Regional 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 airport was fairly new in 1952 when Braniff and Central DC-3s stopped there.
- The closest airport to McAlester Regional Airport (MLC) is Antlers Municipal Airport (ATE), which is located 48 miles (78 kilometers) S of MLC.
- McAlester Regional Airport (MLC) currently has only 1 runway.
- The furthest airport from McAlester Regional Airport (MLC) is Sir Gaëtan Duval Airport (RRG), which is located 10,791 miles (17,366 kilometers) away in Rodrigues Island, Mauritius.
- The airport covers 257 acres.