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

Arrival Airport:

Distance from DEH to FSI:
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- About this route
- DEH Airport Information
- FSI Airport Information
- Facts about DEH
- Facts about FSI
- Map of Nearest Airports to DEH
- List of Nearest Airports to DEH
- Map of Furthest Airports from DEH
- List of Furthest Airports from DEH
- 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 Decorah Municipal Airport (DEH), Decorah, Iowa, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 695 miles (or 1,118 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 Decorah Municipal Airport and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | DEH / KDEH |
Airport Name: | Decorah Municipal Airport |
Location: | Decorah, Iowa, United States |
GPS Coordinates: | 43°16'32"N by 91°44'21"W |
Area Served: | Decorah, Iowa |
Operator/Owner: | City of Decorah |
Airport Type: | Public |
Elevation: | 1158 feet (353 meters) |
# of Runways: | 1 |
View all routes: | Routes from DEH |
More Information: | DEH 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 Decorah Municipal Airport (DEH):
- The furthest airport from Decorah Municipal Airport (DEH) is Margaret River Airport (MGV), which is located 10,859 miles (17,476 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Decorah Municipal Airport (DEH) is Prairie du Chien Municipal Airport (PCD), which is located 36 miles (58 kilometers) ESE of DEH.
- Decorah Municipal Airport (DEH) currently has only 1 runway.
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.
- 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.