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

Arrival Airport:

Distance from FSI to MDW:
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- About this route
- FSI Airport Information
- MDW Airport Information
- Facts about FSI
- Facts about MDW
- 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 MDW
- List of Nearest Airports to MDW
- Map of Furthest Airports from MDW
- List of Furthest Airports from MDW
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Chicago Midway International Airport (MDW), Chicago, Illinois, United States would travel a Great Circle distance of 759 miles (or 1,221 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 Chicago Midway 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: | MDW / KMDW |
Airport Name: | Chicago Midway International Airport |
Location: | Chicago, Illinois, United States |
GPS Coordinates: | 41°47'9"N by 87°45'8"W |
Area Served: | Chicago, Illinois, US |
Operator/Owner: | City of Chicago |
Airport Type: | Public |
Elevation: | 620 feet (189 meters) |
# of Runways: | 5 |
View all routes: | Routes from MDW |
More Information: | MDW 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- With the sudden end of World War I in November 1918, the future operational status of Post Field was unknown.
- 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.
Facts about Chicago Midway International Airport (MDW):
- The furthest airport from Chicago Midway International Airport (MDW) is Margaret River Airport (MGV), which is located 11,083 miles (17,836 kilometers) away in Margaret River, Western Australia, Australia.
- In September 2013, Mayor Rahm Emanuel terminated negotiations to privatize the airport, noting that the process was no longer competitive after one of the two finalists had backed out.
- Because of Chicago Midway International Airport's relatively low elevation of 620 feet, planes can take off or land at Chicago Midway 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.
- By 1967 reconstruction began at the airport, adding three new concourses with 28 gates and three ticket counters, and in 1968 the city invested $10 million in renovation funds.
- Chicago Midway International Airport (MDW) has 5 runways.
- The closest airport to Chicago Midway International Airport (MDW) is Chicago O'Hare International Airport (ORD), which is located only 15 miles (25 kilometers) NNW of MDW.
- For over 16 years, Midway had been the main hub for Indianapolis-based ATA, but the airline shut down on June 7, 2008.