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

Arrival Airport:

Distance from FSI to MLI:
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- About this route
- FSI Airport Information
- MLI Airport Information
- Facts about FSI
- Facts about MLI
- 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 MLI
- List of Nearest Airports to MLI
- Map of Furthest Airports from MLI
- List of Furthest Airports from MLI
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Quad City International Airport (MLI), Moline, Illinois, United States would travel a Great Circle distance of 636 miles (or 1,023 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 Quad City International 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: | MLI / KMLI |
Airport Name: | Quad City International Airport |
Location: | Moline, Illinois, United States |
GPS Coordinates: | 41°26'54"N by 90°30'26"W |
Operator/Owner: | Rock Island County |
Airport Type: | Public |
Elevation: | 590 feet (180 meters) |
# of Runways: | 3 |
View all routes: | Routes from MLI |
More Information: | MLI Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- Post Field served as a base for flight training for the Air Service.
- 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 was the first home of all Army Aviation Training after World War II before moving to Fort Rucker, Alabama in 1954.
- 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 (FSI) currently has only 1 runway.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
Facts about Quad City International Airport (MLI):
- The closest airport to Quad City International Airport (MLI) is Davenport Municipal Airport (DVN), which is located only 12 miles (19 kilometers) NNW of MLI.
- Quad City International Airport (MLI) has 3 runways.
- The airport is designated international for having a port of entry customs service.
- The furthest airport from Quad City International Airport (MLI) is Margaret River Airport (MGV), which is located 10,950 miles (17,623 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Quad City International Airport's relatively low elevation of 590 feet, planes can take off or land at Quad City International 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.
- There are two hotels on the airport property across the parking lot from the terminal.