Nonstop flight route between Fort Sill, Oklahoma, United States and Afton, Wyoming, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to AFO:
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- About this route
- FSI Airport Information
- AFO Airport Information
- Facts about FSI
- Facts about AFO
- 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 AFO
- List of Nearest Airports to AFO
- Map of Furthest Airports from AFO
- List of Furthest Airports from AFO
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Afton Municipal Airport (AFO), Afton, Wyoming, United States would travel a Great Circle distance of 874 miles (or 1,407 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 Afton Municipal 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: | AFO / KAFO |
Airport Names: |
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Location: | Afton, Wyoming, United States |
GPS Coordinates: | 42°42'32"N by 110°56'31"W |
Area Served: | Afton, Wyoming |
Operator/Owner: | Town of Afton |
Airport Type: | Public |
Elevation: | 6221 feet (1,896 meters) |
# of Runways: | 1 |
View all routes: | Routes from AFO |
More Information: | AFO 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 Afton Municipal Airport (AFO):
- The furthest airport from Afton Municipal Airport (AFO) is Sir Gaëtan Duval Airport (RRG), which is located 10,817 miles (17,408 kilometers) away in Rodrigues Island, Mauritius.
- In addition to being known as "Afton Municipal Airport", another name for AFO is "Afton-Lincoln County Airport".
- Afton Municipal Airport (AFO) currently has only 1 runway.
- The closest airport to Afton Municipal Airport (AFO) is Miley Memorial Field (BPI), which is located 43 miles (69 kilometers) E of AFO.
- Because of Afton Municipal Airport's high elevation of 6,221 feet, planes must typically fly at a faster airspeed in order to takeoff or land at AFO. Combined with a high temperature, this could make AFO a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.