Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Buka Island, Papua New Guinea:
Departure Airport:

Arrival Airport:

Distance from CPS to BUA:
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- About this route
- CPS Airport Information
- BUA Airport Information
- Facts about CPS
- Facts about BUA
- 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 BUA
- List of Nearest Airports to BUA
- Map of Furthest Airports from BUA
- List of Furthest Airports from BUA
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Buka Island Airport (BUA), Buka Island, Papua New Guinea would travel a Great Circle distance of 7,804 miles (or 12,560 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 Buka Island 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 Buka Island 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: | BUA / AYBK |
Airport Name: | Buka Island Airport |
Location: | Buka Island, Papua New Guinea |
GPS Coordinates: | 5°25'19"S by 154°40'21"E |
Area Served: | Buka Island, Papua New Guinea |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 11 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from BUA |
More Information: | BUA Maps & Info |
Facts about St. Louis Downtown Airport (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.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- 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.
Facts about Buka Island Airport (BUA):
- The origins of the airfield begin in 1941 when Australian troops built gun pits around a primitive airstrip in December 1941.
- Buka Island Airport (BUA) currently has only 1 runway.
- Because of Buka Island Airport's relatively low elevation of 11 feet, planes can take off or land at Buka Island 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.
- On 26 July, an Imperial Japanese Navy special detachment was sent to inspect Buka Airfield, but considered it unacceptable as a prospect for a speedily constructed major airfield.
- The furthest airport from Buka Island Airport (BUA) is São Filipe Airport (SFL), which is located 11,781 miles (18,959 kilometers) away in Fogo, Cape Verde.
- The closest airport to Buka Island Airport (BUA) is Nissan Island Airport (IIS), which is located 71 miles (114 kilometers) NNW of BUA.