Nonstop flight route between Wilmington, Ohio, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from ILN to FSI:
Share this route:
Jump to:
- About this route
- ILN Airport Information
- FSI Airport Information
- Facts about ILN
- Facts about FSI
- Map of Nearest Airports to ILN
- List of Nearest Airports to ILN
- Map of Furthest Airports from ILN
- List of Furthest Airports from ILN
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Wilmington Air Park (ILN), Wilmington, Ohio, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 869 miles (or 1,399 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 Wilmington Air Park and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | ILN / KILN |
Airport Name: | Wilmington Air Park |
Location: | Wilmington, Ohio, United States |
GPS Coordinates: | 39°25'41"N by 83°47'31"W |
Operator/Owner: | Clinton County Port Authority |
Airport Type: | Public |
Elevation: | 1077 feet (328 meters) |
# of Runways: | 2 |
View all routes: | Routes from ILN |
More Information: | ILN Maps & Info |
Arrival 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 |
Facts about Wilmington Air Park (ILN):
- The closest airport to Wilmington Air Park (ILN) is Dayton–Wright Brothers Airport (MGY), which is located 26 miles (41 kilometers) WNW of ILN.
- Wilmington Air Park (ILN) has 2 runways.
- The Wilmington Air Park covers an area of 2,000 acres at an elevation of 1,077 feet above mean sea level.
- The airport opened in 1929 and a small hangar was built in 1930.
- A comprehensive Redevelopment Study for the Wilmington Air Park was completed in December of 2011.
- The furthest airport from Wilmington Air Park (ILN) is Margaret River Airport (MGV), which is located 11,326 miles (18,227 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- 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.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.