Nonstop flight route between Fort Sill, Oklahoma, United States and Oscoda, Michigan, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to OSC:
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- About this route
- FSI Airport Information
- OSC Airport Information
- Facts about FSI
- Facts about OSC
- 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 OSC
- List of Nearest Airports to OSC
- Map of Furthest Airports from OSC
- List of Furthest Airports from OSC
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Oscoda-Wurtsmith Airport (OSC), Oscoda, Michigan, United States would travel a Great Circle distance of 1,045 miles (or 1,682 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 Oscoda-Wurtsmith 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: | OSC / KOSC |
Airport Name: | Oscoda-Wurtsmith Airport |
Location: | Oscoda, Michigan, United States |
GPS Coordinates: | 44°27'6"N by 83°23'39"W |
Area Served: | Oscoda, Michigan |
Operator/Owner: | Oscoda-Wurtsmith Airport Authority |
Airport Type: | Public |
Elevation: | 634 feet (193 meters) |
# of Runways: | 1 |
View all routes: | Routes from OSC |
More Information: | OSC Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.
Facts about Oscoda-Wurtsmith Airport (OSC):
- The closest airport to Oscoda-Wurtsmith Airport (OSC) is Alpena County Regional Airport (APN), which is located 44 miles (71 kilometers) N of OSC.
- Because of Oscoda-Wurtsmith Airport's relatively low elevation of 634 feet, planes can take off or land at Oscoda-Wurtsmith 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.
- For the 12-month period ending December 31, 2005, the airport had 8,857 aircraft operations, an average of 24 per day, all of which were general aviation.
- The furthest airport from Oscoda-Wurtsmith Airport (OSC) is Margaret River Airport (MGV), which is located 11,213 miles (18,046 kilometers) away in Margaret River, Western Australia, Australia.
- Oscoda-Wurtsmith Airport (OSC) currently has only 1 runway.
- It was built out of a portion of the decommissioned Wurtsmith Air Force Base which housed nuclear armed B-52 Stratofortress bombers during the Cold War as well as several air refueling squadrons.