Nonstop flight route between Jacksonville, Illinois, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from IJX to CPS:
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- About this route
- IJX Airport Information
- CPS Airport Information
- Facts about IJX
- Facts about CPS
- Map of Nearest Airports to IJX
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- Map of Furthest Airports from IJX
- List of Furthest Airports from IJX
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
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- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX), Jacksonville, Illinois, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 742 miles (or 1,195 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 Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | IJX / KIJX |
Airport Name: | Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 |
Location: | Jacksonville, Illinois, United States |
GPS Coordinates: | 30°25'12"N by 81°38'24"W |
Elevation: | 20 feet (6 meters) |
View all routes: | Routes from IJX |
More Information: | IJX Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Facts about Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX):
- As part of the buildup of forces prior to the United States entry into World War II, the Army Air Corps leased Imeson Field from the City of Jacksonville on 6 February 1941.
- With the closure of the base by Technical Service Command, a small portion of Jacksonville Army Airfield was transferred to the jurisdiction of Fourteenth Air Force on 15 December 1946 for subsequent use by postwar reserve forces.
- In an era of multistop airline flights JAX was busier than people nowadays would expect.
- The furthest airport from Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Shark Bay Airport (MJK), which is located 11,460 miles (18,442 kilometers) away in Monkey Mia, Western Australia, Australia.
- The closest airport to Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 (IJX) is Jacksonville International Airport (JAX), which is located only 6 miles (9 kilometers) NNW of IJX.
- A contract was initiated with National Airlines in July 1942 by AAF Training Command for National to conduct aircraft mechanics training courses to AAF personnel.
- Because of Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1's relatively low elevation of 20 feet, planes can take off or land at Imeson FieldJacksonville Army AirfieldNaval Auxiliary Air Station Jacksonville #1 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 St. Louis Downtown Airport (CPS):
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.