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

Arrival Airport:

Distance from CPS to UGN:
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- About this route
- CPS Airport Information
- UGN Airport Information
- Facts about CPS
- Facts about UGN
- 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 UGN
- List of Nearest Airports to UGN
- Map of Furthest Airports from UGN
- List of Furthest Airports from UGN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Waukegan National Airport (UGN), Chicago / Waukegan, Illinois, United States would travel a Great Circle distance of 292 miles (or 470 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 Waukegan National 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: | UGN / KUGN |
Airport Name: | Waukegan National Airport |
Location: | Chicago / Waukegan, Illinois, United States |
GPS Coordinates: | 42°25'19"N by 87°52'4"W |
Area Served: | Chicago, Illinois |
Operator/Owner: | Waukegan Port District |
Airport Type: | Public |
Elevation: | 727 feet (222 meters) |
# of Runways: | 2 |
View all routes: | Routes from UGN |
More Information: | UGN Maps & Info |
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.
- 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 airport closed in 1959 and reopened six years later as Bi-State Parks 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.
Facts about Waukegan National Airport (UGN):
- Waukegan National Airport (UGN) has 2 runways.
- The closest airport to Waukegan National Airport (UGN) is Kenosha Regional Airport (ENW), which is located only 12 miles (20 kilometers) NNW of UGN.
- Because of Waukegan National Airport's relatively low elevation of 727 feet, planes can take off or land at Waukegan National 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 furthest airport from Waukegan National Airport (UGN) is Margaret River Airport (MGV), which is located 11,064 miles (17,806 kilometers) away in Margaret River, Western Australia, Australia.