Nonstop flight route between Fort Sill, Oklahoma, United States and Key West, Florida, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to EYW:
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- About this route
- FSI Airport Information
- EYW Airport Information
- Facts about FSI
- Facts about EYW
- 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 EYW
- List of Nearest Airports to EYW
- Map of Furthest Airports from EYW
- List of Furthest Airports from EYW
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Key West International Airport (EYW), Key West, Florida, United States would travel a Great Circle distance of 1,216 miles (or 1,957 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 Key West 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: | EYW / KEYW |
Airport Name: | Key West International Airport |
Location: | Key West, Florida, United States |
GPS Coordinates: | 24°33'21"N by 81°45'33"W |
Area Served: | Key West, Florida |
Operator/Owner: | Monroe County |
Airport Type: | Public |
Elevation: | 3 feet (1 meters) |
# of Runways: | 1 |
View all routes: | Routes from EYW |
More Information: | EYW Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
Facts about Key West International Airport (EYW):
- The closest airport to Key West International Airport (EYW) is NAS Key West (NQX), which is located only 5 miles (7 kilometers) ENE of EYW.
- Key West's aviation history begins with a 1913 flight to Cuba by Augustin Parla.
- Key West International Airport (EYW) currently has only 1 runway.
- Because of Key West International Airport's relatively low elevation of 3 feet, planes can take off or land at Key West International 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 furthest airport from Key West International Airport (EYW) is Cocos (Keeling) Island Airport (CCK), which is located 11,577 miles (18,632 kilometers) away in Cocos Islands, Australia.
- The airport has two terminals designed by Mark Mosko/Dwane Stark of URS.