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

Arrival Airport:

Distance from MNN to CPS:
Share this route:
Jump to:
- About this route
- MNN Airport Information
- CPS Airport Information
- Facts about MNN
- Facts about CPS
- Map of Nearest Airports to MNN
- List of Nearest Airports to MNN
- Map of Furthest Airports from MNN
- List of Furthest Airports from MNN
- 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 Marion Municipal Airport (MNN), Marion, Ohio, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 403 miles (or 649 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 Marion Municipal Airport 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: | MNN / KMNN |
Airport Name: | Marion Municipal Airport |
Location: | Marion, Ohio, United States |
GPS Coordinates: | 40°36'57"N by 83°3'47"W |
Area Served: | Marion, Ohio |
Operator/Owner: | City of Marion |
Airport Type: | Public |
Elevation: | 993 feet (303 meters) |
# of Runways: | 2 |
View all routes: | Routes from MNN |
More Information: | MNN 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 Marion Municipal Airport (MNN):
- The closest airport to Marion Municipal Airport (MNN) is Galion Municipal Airport (GQQ), which is located 20 miles (32 kilometers) ENE of MNN.
- Because of Marion Municipal Airport's relatively low elevation of 993 feet, planes can take off or land at Marion Municipal 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.
- Marion Municipal Airport (MNN) has 2 runways.
- The furthest airport from Marion Municipal Airport (MNN) is Margaret River Airport (MGV), which is located 11,339 miles (18,249 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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 airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.