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

Arrival Airport:

Distance from BUA to CPS:
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- About this route
- BUA Airport Information
- CPS Airport Information
- Facts about BUA
- Facts about 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
- 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 Buka Island Airport (BUA), Buka Island, Papua New Guinea and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States 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 Buka Island 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 Buka Island 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: | 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 |
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 Buka Island Airport (BUA):
- 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.
- There is one navigational aid, the Buka NDB situated on nearby Sohano Island.
- Buka Island Airport (BUA) currently has only 1 runway.
- 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.
- Today the airport is the primary air portal into Bougainville, and even 60 years after the war, wreckage from the military use of the airfield by the Japanese and Americans is easily found in the area.
- The closest airport to Buka Island Airport (BUA) is Nissan Island Airport (IIS), which is located 71 miles (114 kilometers) NNW of BUA.
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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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 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.