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

Arrival Airport:

Distance from DPA to FSI:
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- About this route
- DPA Airport Information
- FSI Airport Information
- Facts about DPA
- Facts about FSI
- Map of Nearest Airports to DPA
- List of Nearest Airports to DPA
- Map of Furthest Airports from DPA
- List of Furthest Airports from DPA
- 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 DuPage Airport (DPA), West Chicago, Illinois, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 744 miles (or 1,197 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 DuPage 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: | DPA / KDPA |
Airport Name: | DuPage Airport |
Location: | West Chicago, Illinois, United States |
GPS Coordinates: | 41°54'24"N by 88°14'53"W |
Airport Type: | Public |
Elevation: | 759 feet (231 meters) |
# of Runways: | 4 |
View all routes: | Routes from DPA |
More Information: | DPA 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 DuPage Airport (DPA):
- In June 2010, the board of the DuPage National Technology Park, an 800-acre technology park that secured a $34 million state grant called for the dissolution of their organization.
- The closest airport to DuPage Airport (DPA) is Chicago/Aurora Municipal Airport (AUZ), which is located only 15 miles (24 kilometers) SW of DPA.
- DuPage Airport (DPA) has 4 runways.
- The DuPage Airport Authority owns 2,800 acres and operates four separate business units.
- The furthest airport from DuPage Airport (DPA) is Margaret River Airport (MGV), which is located 11,056 miles (17,792 kilometers) away in Margaret River, Western Australia, Australia.
- In the late 1970s, DuPage Airport was designated a reliever airport for general aviation aircraft, and in the early 1980s, the airport authority began an expansion project to accommodate the increased traffic.
- A year after the Navy began operations, Howard Aircraft Corporation opened a factory east of the airport across the road.
- Because of DuPage Airport's relatively low elevation of 759 feet, planes can take off or land at DuPage 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.
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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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 is a military use airport located at Fort Sill in Comanche County, Oklahoma, United States.
- 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.
- 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.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.