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

Arrival Airport:

Distance from FSI to MML:
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- About this route
- FSI Airport Information
- MML Airport Information
- Facts about FSI
- Facts about MML
- 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 MML
- List of Nearest Airports to MML
- Map of Furthest Airports from MML
- List of Furthest Airports from MML
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Southwest Minnesota Regional Airport (MML), Marshall, Minnesota, United States would travel a Great Circle distance of 691 miles (or 1,112 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 Southwest Minnesota 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: | MML / KMML |
Airport Name: | Southwest Minnesota Regional Airport |
Location: | Marshall, Minnesota, United States |
GPS Coordinates: | 44°27'1"N by 95°49'18"W |
Operator/Owner: | City Of Marshall |
Airport Type: | Public |
Elevation: | 1180 feet (360 meters) |
# of Runways: | 2 |
View all routes: | Routes from MML |
More Information: | MML Maps & Info |
Facts about Henry Post Army Airfield (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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
Facts about Southwest Minnesota Regional Airport (MML):
- Southwest Minnesota Regional Airport (MML) has 2 runways.
- The furthest airport from Southwest Minnesota Regional Airport (MML) is Margaret River Airport (MGV), which is located 10,642 miles (17,127 kilometers) away in Margaret River, Western Australia, Australia.
- Southwest Minnesota Regional Airport or Marshall/Ryan Field is a general aviation airport located 1 mile west of the central business district of Marshall, Minnesota, US.
- The closest airport to Southwest Minnesota Regional Airport (MML) is Montevideo-Chippewa County Airport (MVE), which is located 36 miles (59 kilometers) N of MML.
- For the period ending 31, August 2010, the airport had 22995 flights at an average of 63 per day.
- As of August 2010, there are 28 aircraft based on the field.