Nonstop flight route between Sidney, Montana, United States and Buka Island, Papua New Guinea:
Departure Airport:

Arrival Airport:

Distance from SDY to BUA:
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- About this route
- SDY Airport Information
- BUA Airport Information
- Facts about SDY
- Facts about BUA
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
- 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 Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Buka Island Airport (BUA), Buka Island, Papua New Guinea would travel a Great Circle distance of 7,013 miles (or 11,286 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 Sidney-Richland Municipal 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 Sidney-Richland Municipal 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: | SDY / KSDY |
Airport Name: | Sidney-Richland Municipal Airport |
Location: | Sidney, Montana, United States |
GPS Coordinates: | 47°42'24"N by 104°11'32"W |
Area Served: | Sidney, Montana |
Operator/Owner: | Sidney Richland Airport Authority |
Airport Type: | Public |
Elevation: | 1985 feet (605 meters) |
# of Runways: | 2 |
View all routes: | Routes from SDY |
More Information: | SDY 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 Sidney-Richland Municipal Airport (SDY):
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- Sidney-Richland Municipal Airport is a public use airport located one nautical mile west of the central business district of Sidney, a city in Richland County, Montana, United States.
- The furthest airport from Sidney-Richland Municipal Airport (SDY) is Sir Gaëtan Duval Airport (RRG), which is located 10,383 miles (16,711 kilometers) away in Rodrigues Island, Mauritius.
- As per the Federal Aviation Administration, this airport had 2,031 passenger boardings in calendar year 2008, 2,766 in 2009, and 3,659 in 2010.
- The closest airport to Sidney-Richland Municipal Airport (SDY) is Sloulin Field International Airport (ISN), which is located 41 miles (67 kilometers) NE of SDY.
Facts about Buka Island Airport (BUA):
- 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.
- In January 1944, the Allies drove the Japanese out of Buka, and the airfield was used for operations against the Japanese over New Guinea.
- 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.
- 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.
- 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.
- Buka Airport is an airport serving Buka Island in the Autonomous Region of Bougainville in Papua New Guinea.