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):
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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 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 Olympia Regional Airport (OLM):
- Olympia Regional Airport is a public use airport located four nautical miles south of the central business district of Olympia, a city in Thurston County and the capital of the U.S.
- Olympic Flight Museum is located at the Olympia Airport, and Airlift Northwest, the region's air medical transport service uses the airport as one of its medical helicopter bases.
- 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.
- 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.
- 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.
- Olympia Regional Airport (OLM) has 2 runways.