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

Arrival Airport:

Distance from FSI to DSM:
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- About this route
- FSI Airport Information
- DSM Airport Information
- Facts about FSI
- Facts about DSM
- Map of Nearest Airports to FSI
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- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to DSM
- List of Nearest Airports to DSM
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- List of Furthest Airports from DSM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Des Moines International Airport (DSM), Des Moines, Iowa, United States would travel a Great Circle distance of 541 miles (or 870 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 Des Moines International 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: | DSM / KDSM |
Airport Name: | Des Moines International Airport |
Location: | Des Moines, Iowa, United States |
GPS Coordinates: | 41°32'2"N by 93°39'47"W |
Area Served: | Des Moines, Iowa |
Operator/Owner: | City of Des Moines |
Airport Type: | Public |
Elevation: | 958 feet (292 meters) |
# of Runways: | 2 |
View all routes: | Routes from DSM |
More Information: | DSM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
- 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.
- The Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
Facts about Des Moines International Airport (DSM):
- Des Moines International Airport (DSM) has 2 runways.
- The Des Moines Terminal has 2 concourses.
- This airport is in in the National Plan of Integrated Airport Systems for 2011–2015, which called it a primary commercial service airport.
- Because of Des Moines International Airport's relatively low elevation of 958 feet, planes can take off or land at Des Moines International 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 furthest airport from Des Moines International Airport (DSM) is Margaret River Airport (MGV), which is located 10,789 miles (17,363 kilometers) away in Margaret River, Western Australia, Australia.
- Interior renovation work began in 2009 on the airport and concluded in 2010.
- The closest airport to Des Moines International Airport (DSM) is Ankeny Regional Airport (IKV), which is located only 12 miles (19 kilometers) NNE of DSM.
- In addition to work inside the passenger terminal, the airport is building a rental car facility and new parking facilities.