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

Arrival Airport:

Distance from IKK to FSI:
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- About this route
- IKK Airport Information
- FSI Airport Information
- Facts about IKK
- Facts about FSI
- Map of Nearest Airports to IKK
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- Map of Furthest Airports from IKK
- List of Furthest Airports from IKK
- Map of Nearest Airports to FSI
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- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Greater Kankakee Airport (IKK), Kankakee, Illinois, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 726 miles (or 1,168 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 Greater Kankakee Airport 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: | IKK / KIKK |
Airport Name: | Greater Kankakee Airport |
Location: | Kankakee, Illinois, United States |
GPS Coordinates: | 41°4'17"N by 87°50'47"W |
Area Served: | Kankakee, Illinois |
Airport Type: | Public |
Elevation: | 629 feet (192 meters) |
# of Runways: | 2 |
View all routes: | Routes from IKK |
More Information: | IKK 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 Greater Kankakee Airport (IKK):
- Because of Greater Kankakee Airport's relatively low elevation of 629 feet, planes can take off or land at Greater Kankakee 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 airport is owned and operated by the Kankakee Valley Airport Authority.
- The closest airport to Greater Kankakee Airport (IKK) is Kentland Municipal Airport (KKT), which is located 31 miles (49 kilometers) SE of IKK.
- Greater Kankakee Airport (IKK) has 2 runways.
- The furthest airport from Greater Kankakee Airport (IKK) is Margaret River Airport (MGV), which is located 11,091 miles (17,849 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Henry Post Army Airfield (FSI):
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- 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 Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- 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.
- Henry Post Army Airfield is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- 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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.