Nonstop flight route between Cairns, Queensland, Australia and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from CNS to CPS:
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- About this route
- CNS Airport Information
- CPS Airport Information
- Facts about CNS
- Facts about CPS
- Map of Nearest Airports to CNS
- List of Nearest Airports to CNS
- Map of Furthest Airports from CNS
- List of Furthest Airports from CNS
- 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 Cairns Airport (CNS), Cairns, Queensland, Australia and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 8,768 miles (or 14,111 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 Cairns Airport and St. Louis Downtown 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 Cairns Airport and St. Louis Downtown Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CNS / YBCS |
Airport Name: | Cairns Airport |
Location: | Cairns, Queensland, Australia |
GPS Coordinates: | 16°53'12"S by 145°45'17"E |
Area Served: | Cairns, Queensland, Australia |
Operator/Owner: | North Queensland Airports Group |
Airport Type: | Public |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from CNS |
More Information: | CNS 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 Cairns Airport (CNS):
- Cairns Airport (CNS) currently has only 1 runway.
- A$200 million redevelopment of the Domestic terminal started in August 2007 and was completed in 2010.
- The airport has direct flights to 20 international and 44 domestic destinations and many general aviation flights including a number of helicopter operators.
- The closest airport to Cairns Airport (CNS) is Mareeba Airfield (MRG), which is located 26 miles (41 kilometers) WSW of CNS.
- Because of Cairns Airport's relatively low elevation of 10 feet, planes can take off or land at Cairns 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 Cairns Airport (CNS) is Agostinho Neto Airport (NTO), which is located 11,832 miles (19,041 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
- Airport shuttle bus services to hotels, city centre, Northern Beaches, Palm Cove, Port Douglas and Cape Tribulation are available.
- Cairns Airport handled 3,848,728 passengers last year.
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 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 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.