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

Arrival Airport:

Distance from ILN to CPS:
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- About this route
- ILN Airport Information
- CPS Airport Information
- Facts about ILN
- Facts about CPS
- Map of Nearest Airports to ILN
- List of Nearest Airports to ILN
- Map of Furthest Airports from ILN
- List of Furthest Airports from ILN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Wilmington Air Park (ILN), Wilmington, Ohio, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 347 miles (or 558 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 Wilmington Air Park 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: | ILN / KILN |
Airport Name: | Wilmington Air Park |
Location: | Wilmington, Ohio, United States |
GPS Coordinates: | 39°25'41"N by 83°47'31"W |
Operator/Owner: | Clinton County Port Authority |
Airport Type: | Public |
Elevation: | 1077 feet (328 meters) |
# of Runways: | 2 |
View all routes: | Routes from ILN |
More Information: | ILN 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 Wilmington Air Park (ILN):
- The base was decommissioned as an Air Force installation in 1972 and the Community Improvement Corporation began developing the area as the Wilmington Industrial Air Park.
- The closest airport to Wilmington Air Park (ILN) is Dayton–Wright Brothers Airport (MGY), which is located 26 miles (41 kilometers) WNW of ILN.
- Wilmington Air Park (ILN) has 2 runways.
- The furthest airport from Wilmington Air Park (ILN) is Margaret River Airport (MGV), which is located 11,326 miles (18,227 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.