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

Arrival Airport:

Distance from CPS to MKY:
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- About this route
- CPS Airport Information
- MKY Airport Information
- Facts about CPS
- Facts about MKY
- 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 MKY
- List of Nearest Airports to MKY
- Map of Furthest Airports from MKY
- List of Furthest Airports from MKY
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Mackay Airport (MKY), Mackay, Queensland, Australia would travel a Great Circle distance of 8,751 miles (or 14,083 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 Mackay 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 Mackay 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: | MKY / YBMK |
Airport Name: | Mackay Airport |
Location: | Mackay, Queensland, Australia |
GPS Coordinates: | 21°10'18"S by 149°10'46"E |
Operator/Owner: | Mackay Airport Pty Ltd |
Airport Type: | Public |
Elevation: | 19 feet (6 meters) |
# of Runways: | 2 |
View all routes: | Routes from MKY |
More Information: | MKY 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.
- 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.
- 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.
- 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
Facts about Mackay Airport (MKY):
- The airport attracts a diverse range of carriers to service the travel needs of the business, commercial, industrial, leisure and visiting friends and relatives sectors.
- The furthest airport from Mackay Airport (MKY) is Agostinho Neto Airport (NTO), which is located 11,973 miles (19,269 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
- Because of Mackay Airport's relatively low elevation of 19 feet, planes can take off or land at Mackay 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.
- In November 2008, Mackay Airport was sold to a private consortium to fund the development of Mackay Hospital.
- Mackay Airport handled 1,049,172 passengers last year.
- In 1938, the airport held an airshow featuring ten aircraft, which attracted over 8,000 spectators.
- Mackay Airport (MKY) has 2 runways.
- The closest airport to Mackay Airport (MKY) is Great Barrier Reef Airport (HTI), which is located 58 miles (94 kilometers) NNW of MKY.