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

Arrival Airport:

Distance from FSI to DNS:
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- About this route
- FSI Airport Information
- DNS Airport Information
- Facts about FSI
- Facts about DNS
- 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 DNS
- List of Nearest Airports to DNS
- Map of Furthest Airports from DNS
- List of Furthest Airports from DNS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Denison Municipal Airport (DNS), Denison, Iowa, United States would travel a Great Circle distance of 533 miles (or 857 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 Denison Municipal 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: | DNS / KDNS |
Airport Name: | Denison Municipal Airport |
Location: | Denison, Iowa, United States |
GPS Coordinates: | 41°59'12"N by 95°22'50"W |
Area Served: | Denison, Iowa |
Operator/Owner: | City of Denison |
Airport Type: | Public |
Elevation: | 1274 feet (388 meters) |
# of Runways: | 3 |
View all routes: | Routes from DNS |
More Information: | DNS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
- 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 Army Airfield (FSI) currently has only 1 runway.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- Post Field served as a base for flight training for the Air Service.
- 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 Denison Municipal Airport (DNS):
- Denison Municipal Airport (DNS) has 3 runways.
- The closest airport to Denison Municipal Airport (DNS) is Arthur N. Neu Airport (CIN), which is located 31 miles (49 kilometers) E of DNS.
- The furthest airport from Denison Municipal Airport (DNS) is Margaret River Airport (MGV), which is located 10,696 miles (17,214 kilometers) away in Margaret River, Western Australia, Australia.