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

Arrival Airport:

Distance from OTM to FSI:
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- About this route
- OTM Airport Information
- FSI Airport Information
- Facts about OTM
- Facts about FSI
- Map of Nearest Airports to OTM
- List of Nearest Airports to OTM
- Map of Furthest Airports from OTM
- List of Furthest Airports from OTM
- 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 Ottumwa Regional Airport (OTM), Ottumwa, Iowa, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 551 miles (or 888 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 Ottumwa Regional 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: | OTM / KOTM |
Airport Name: | Ottumwa Regional Airport |
Location: | Ottumwa, Iowa, United States |
GPS Coordinates: | 41°6'24"N by 92°26'53"W |
Area Served: | Ottumwa, Iowa |
Operator/Owner: | City of Ottumwa |
Airport Type: | Public |
Elevation: | 845 feet (258 meters) |
# of Runways: | 2 |
View all routes: | Routes from OTM |
More Information: | OTM 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 Ottumwa Regional Airport (OTM):
- With the end of World War II and much less need for large numbers of aviators, NAS Ottumwa was transitioned from a flight training role to one of classroom-based pre-flight training on December 7, 1945—exactly four years after the Japanese attack on Pearl Harbor.
- The furthest airport from Ottumwa Regional Airport (OTM) is Margaret River Airport (MGV), which is located 10,856 miles (17,470 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Ottumwa Regional Airport (OTM) is Fairfield Municipal Airport (FFL), which is located 25 miles (40 kilometers) E of OTM.
- Because of Ottumwa Regional Airport's relatively low elevation of 845 feet, planes can take off or land at Ottumwa 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.
- Among the thousands of Navy personnel who served at the base was Richard M.
- In December, 1947, Central States Airlines began commercial air service to Ottumwa.
- Ottumwa Regional Airport (OTM) has 2 runways.
- Ottumwa Regional Airport covers an area of 1,600 acres at an elevation of 845 feet above mean sea level.
Facts about Henry Post Army Airfield (FSI):
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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.
- 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.