Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Coonamble, New South Wales, Australia:
Departure Airport:

Arrival Airport:

Distance from CPS to CNB:
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- About this route
- CPS Airport Information
- CNB Airport Information
- Facts about CPS
- Facts about CNB
- 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 CNB
- List of Nearest Airports to CNB
- Map of Furthest Airports from CNB
- List of Furthest Airports from CNB
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Coonamble Airport (CNB), Coonamble, New South Wales, Australia would travel a Great Circle distance of 9,130 miles (or 14,693 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 large distance between St. Louis Downtown Airport and Coonamble Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Louis Downtown Airport and Coonamble Airport. You'll see that it will travel the same route of the red line on this map!
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: | CNB / YCNM |
Airport Name: | Coonamble Airport |
Location: | Coonamble, New South Wales, Australia |
GPS Coordinates: | 30°58'59"S by 148°22'30"E |
Operator/Owner: | Coonamble Shire Council |
Airport Type: | Public |
Elevation: | 604 feet (184 meters) |
# of Runways: | 2 |
View all routes: | Routes from CNB |
More Information: | CNB Maps & Info |
Facts about St. Louis Downtown Airport (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.
- The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
Facts about Coonamble Airport (CNB):
- Coonamble Airport (CNB) has 2 runways.
- The furthest airport from Coonamble Airport (CNB) is Horta International Airport (HOR), which is located 11,891 miles (19,136 kilometers) away in Horta, Azores, Portugal.
- The closest airport to Coonamble Airport (CNB) is Coonabarabran Airport (COJ), which is located 58 miles (93 kilometers) ESE of CNB.
- Because of Coonamble Airport's relatively low elevation of 604 feet, planes can take off or land at Coonamble 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.