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

Arrival Airport:

Distance from IMM to FSI:
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- About this route
- IMM Airport Information
- FSI Airport Information
- Facts about IMM
- Facts about FSI
- Map of Nearest Airports to IMM
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- Map of Furthest Airports from IMM
- List of Furthest Airports from IMM
- Map of Nearest Airports to FSI
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- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Immokalee Regional Airport (IMM), Immokalee, Florida, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,158 miles (or 1,863 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 Immokalee Regional 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: | IMM / KIMM |
Airport Names: |
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Location: | Immokalee, Florida, United States |
GPS Coordinates: | 26°26'2"N by 81°24'5"W |
Area Served: | Immokalee, Florida |
Operator/Owner: | Collier County Airport Authority |
Airport Type: | Public |
Elevation: | 37 feet (11 meters) |
# of Runways: | 2 |
View all routes: | Routes from IMM |
More Information: | IMM 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 Immokalee Regional Airport (IMM):
- Transferred to Third Air Force in July 1944 with the drawdown of AAFTC's pilot training program and was a group training facility for replacement personnel.
- The furthest airport from Immokalee Regional Airport (IMM) is Shark Bay Airport (MJK), which is located 11,508 miles (18,520 kilometers) away in Monkey Mia, Western Australia, Australia.
- Because of Immokalee Regional Airport's relatively low elevation of 37 feet, planes can take off or land at Immokalee 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.
- Declared surplus and turned over to the Army Corps of Engineers on September 30, 1945.
- In addition to being known as "Immokalee Regional Airport", another name for IMM is "(former Immokalee Army Airfield)".
- Immokalee Regional Airport (IMM) has 2 runways.
- The closest airport to Immokalee Regional Airport (IMM) is Southwest Florida International Airport (RSW), which is located 23 miles (37 kilometers) WNW of IMM.
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- 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.
- 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.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- Henry Post Army Airfield (FSI) currently has only 1 runway.