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

Arrival Airport:

Distance from FSI to GEG:
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- About this route
- FSI Airport Information
- GEG Airport Information
- Facts about FSI
- Facts about GEG
- 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 GEG
- List of Nearest Airports to GEG
- Map of Furthest Airports from GEG
- List of Furthest Airports from GEG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Spokane International Airport (GEG), Spokane, Washington, United States would travel a Great Circle distance of 1,333 miles (or 2,145 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 Spokane International 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: | GEG / KGEG |
Airport Names: |
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Location: | Spokane, Washington, United States |
GPS Coordinates: | 47°37'11"N by 117°32'2"W |
Area Served: | Spokane Airport Board |
Operator/Owner: | Spokane County-City |
Airport Type: | Public |
Elevation: | 2376 feet (724 meters) |
# of Runways: | 2 |
View all routes: | Routes from GEG |
More Information: | GEG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
Facts about Spokane International Airport (GEG):
- Spokane International Airport (GEG) has 2 runways.
- In addition to being known as "Spokane International Airport", another name for GEG is "Geiger Army Airfield".
- The current terminal complex opened in 1965 and was designed by Warren C.
- During World War II, Geiger Field was a major training base by Second Air Force as a group training airfield for B-17 Flying Fortress heavy bombardment units, with new aircraft being obtained from Boeing near Seattle.
- Known as Sunset Field before 1941, it was purchased from the county by the War Department and renamed Geiger Field after Major Harold Geiger, an Army aviation pioneer who died in a crash in 1927.
- The airport has a Master Plan, which includes a third runway and gates added to Concourse C.
- The closest airport to Spokane International Airport (GEG) is Fairchild Air Force Base (SKA), which is located only 6 miles (9 kilometers) W of GEG.
- The furthest airport from Spokane International Airport (GEG) is Tôlanaro Airport (FTU), which is located 10,661 miles (17,158 kilometers) away in Tôlanaro, Madagascar.