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

Arrival Airport:

Distance from FSI to IMM:
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- About this route
- FSI Airport Information
- IMM Airport Information
- Facts about FSI
- Facts about IMM
- 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 IMM
- List of Nearest Airports to IMM
- Map of Furthest Airports from IMM
- List of Furthest Airports from IMM
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Immokalee Regional Airport (IMM), Immokalee, Florida, 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 Henry Post Army Airfield and Immokalee 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: | 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 |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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 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.
Facts about Immokalee Regional Airport (IMM):
- Immokalee Regional Airport (IMM) has 2 runways.
- 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.
- For the 12-month period ending December 30, 2011, the airport had 36,500 general aviation aircraft operations, an average of 100 per day.
- In addition to being known as "Immokalee Regional Airport", another name for IMM is "(former Immokalee Army Airfield)".
- 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 closest airport to Immokalee Regional Airport (IMM) is Southwest Florida International Airport (RSW), which is located 23 miles (37 kilometers) WNW of IMM.
- 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.