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

Arrival Airport:

Distance from FSI to TDO:
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- About this route
- FSI Airport Information
- TDO Airport Information
- Facts about FSI
- Facts about TDO
- 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 TDO
- List of Nearest Airports to TDO
- Map of Furthest Airports from TDO
- List of Furthest Airports from TDO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and South Lewis County Airport (TDO), Toledo, Washington, United States would travel a Great Circle distance of 1,510 miles (or 2,430 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 South Lewis County 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: | TDO / KTDO |
Airport Names: |
|
Location: | Toledo, Washington, United States |
GPS Coordinates: | 46°28'37"N by 122°48'23"W |
Area Served: | Lewis County, Washington |
Operator/Owner: | Lewis County |
Airport Type: | Public |
Elevation: | 374 feet (114 meters) |
# of Runways: | 1 |
View all routes: | Routes from TDO |
More Information: | TDO Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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 Army Airfield (FSI) currently has only 1 runway.
- 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.
- 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 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.
Facts about South Lewis County Airport (TDO):
- South Lewis County Airport, also known as Ed Carlson Memorial Field, is a county-owned public-use airport in Lewis County, Washington, United States.
- The furthest airport from South Lewis County Airport (TDO) is Tôlanaro Airport (FTU), which is located 10,851 miles (17,464 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to South Lewis County Airport (TDO) is Southwest Washington Regional Airport (KLS), which is located 25 miles (41 kilometers) S of TDO.
- In addition to being known as "South Lewis County Airport", another name for TDO is "Ed Carlson Memorial Field".
- Because of South Lewis County Airport's relatively low elevation of 374 feet, planes can take off or land at South Lewis County 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 covers an area of 170 acres at an elevation of 374 feet above mean sea level.
- South Lewis County Airport (TDO) currently has only 1 runway.