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

Arrival Airport:

Distance from CPS to OEA:
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- About this route
- CPS Airport Information
- OEA Airport Information
- Facts about CPS
- Facts about OEA
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to OEA
- List of Nearest Airports to OEA
- Map of Furthest Airports from OEA
- List of Furthest Airports from OEA
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and O'Neal Airport (OEA), Vincennes, Indiana, United States would travel a Great Circle distance of 141 miles (or 227 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 St. Louis Downtown Airport and O'Neal Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | OEA / KOEA |
Airport Name: | O'Neal Airport |
Location: | Vincennes, Indiana, United States |
GPS Coordinates: | 38°41'29"N by 87°33'7"W |
Area Served: | Vincennes, Indiana |
Operator/Owner: | Vincennes University |
Airport Type: | Public (Closed) |
Elevation: | 414 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from OEA |
More Information: | OEA Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 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.
- 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.
- 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.
Facts about O'Neal Airport (OEA):
- Because of O'Neal Airport's relatively low elevation of 414 feet, planes can take off or land at O'Neal 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 O'Neal Airport (OEA) is Lawrenceville–Vincennes International Airport (LWV), which is located only 6 miles (9 kilometers) NNW of OEA.
- O'Neal Airport (OEA) has 3 runways.
- The furthest airport from O'Neal Airport (OEA) is Margaret River Airport (MGV), which is located 11,137 miles (17,923 kilometers) away in Margaret River, Western Australia, Australia.