Nonstop flight route between Fort Sill, Oklahoma, United States and Olympia, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to OLM:
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- About this route
- FSI Airport Information
- OLM Airport Information
- Facts about FSI
- Facts about OLM
- 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 OLM
- List of Nearest Airports to OLM
- Map of Furthest Airports from OLM
- List of Furthest Airports from OLM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Olympia Regional Airport (OLM), Olympia, Washington, United States would travel a Great Circle distance of 1,528 miles (or 2,459 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 Olympia Regional 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: | OLM / KOLM |
Airport Names: |
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Location: | Olympia, Washington, United States |
GPS Coordinates: | 46°58'9"N by 122°54'9"W |
Area Served: | Olympia, Washington |
Operator/Owner: | Port of Olympia |
Airport Type: | Public |
Elevation: | 209 feet (64 meters) |
# of Runways: | 2 |
View all routes: | Routes from OLM |
More Information: | OLM Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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.
Facts about Olympia Regional Airport (OLM):
- Olympia Regional Airport (OLM) has 2 runways.
- In addition to being known as "Olympia Regional Airport", another name for OLM is "Olympia Army Airfield".
- The furthest airport from Olympia Regional Airport (OLM) is Tôlanaro Airport (FTU), which is located 10,822 miles (17,417 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Olympia Regional Airport (OLM) is Gray Army Airfield (GRF), which is located only 17 miles (27 kilometers) ENE of OLM.
- Because of Olympia Regional Airport's relatively low elevation of 209 feet, planes can take off or land at Olympia 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.
- The airport served as a satellite of nearby McChord Field during World War II, and commercial aviation history at the Olympia Airport extends to the 1920s.