Nonstop flight route between Fort Sill, Oklahoma, United States and Peru, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to VYS:
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- About this route
- FSI Airport Information
- VYS Airport Information
- Facts about FSI
- Facts about VYS
- 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 VYS
- List of Nearest Airports to VYS
- Map of Furthest Airports from VYS
- List of Furthest Airports from VYS
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Illinois Valley Regional Airport (VYS), Peru, Illinois, United States would travel a Great Circle distance of 683 miles (or 1,100 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 Illinois Valley 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: | VYS / KVYS |
Airport Names: |
|
Location: | Peru, Illinois, United States |
GPS Coordinates: | 41°21'6"N by 89°9'11"W |
Area Served: | Peru, Illinois |
Airport Type: | Public |
Elevation: | 654 feet (199 meters) |
# of Runways: | 2 |
View all routes: | Routes from VYS |
More Information: | VYS Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- Post Field served as a base for flight training for the Air Service.
- 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- Henry Post Army Airfield was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
Facts about Illinois Valley Regional Airport (VYS):
- In addition to being known as "Illinois Valley Regional Airport", another name for VYS is "Walter A. Duncan Field".
- The closest airport to Illinois Valley Regional Airport (VYS) is Chicago/Aurora Municipal Airport (AUZ), which is located 45 miles (73 kilometers) NE of VYS.
- Illinois Valley Regional Airport (VYS) has 2 runways.
- Because of Illinois Valley Regional Airport's relatively low elevation of 654 feet, planes can take off or land at Illinois Valley 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.
- The furthest airport from Illinois Valley Regional Airport (VYS) is Margaret River Airport (MGV), which is located 11,020 miles (17,735 kilometers) away in Margaret River, Western Australia, Australia.