Nonstop flight route between Sidney, Montana, United States and Tarawa, Kiribati:
Departure Airport:

Arrival Airport:

Distance from SDY to TRW:
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- About this route
- SDY Airport Information
- TRW Airport Information
- Facts about SDY
- Facts about TRW
- 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 TRW
- List of Nearest Airports to TRW
- Map of Furthest Airports from TRW
- List of Furthest Airports from TRW
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Bonriki International Airport (TRW), Tarawa, Kiribati would travel a Great Circle distance of 5,807 miles (or 9,345 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 Bonriki International 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 Bonriki International 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: | TRW / NGTA |
Airport Name: | Bonriki International Airport |
Location: | Tarawa, Kiribati |
GPS Coordinates: | 1°22'54"N by 173°8'48"E |
Area Served: | Tarawa, Kiribati |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 9 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from TRW |
More Information: | TRW Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
- 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.
Facts about Bonriki International Airport (TRW):
- The closest airport to Bonriki International Airport (TRW) is Abaiang Atoll Airport (ABF), which is located 30 miles (48 kilometers) NNW of TRW.
- Bonriki International Airport (TRW) currently has only 1 runway.
- Because of Bonriki International Airport's relatively low elevation of 9 feet, planes can take off or land at Bonriki International 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.
- Almost immediately after the completion of the runway, it became the nexus of United States Army Air Forces operations from Tarawa, as the runway at nearby Hawkins Field on Betio was too short for safe bomber operations.
- The furthest airport from Bonriki International Airport (TRW) is Cape Palmas Airport (CPA), which is nearly antipodal to Bonriki International Airport (meaning Bonriki International Airport is almost on the exact opposite side of the Earth from Cape Palmas Airport), and is located 12,035 miles (19,368 kilometers) away in Cape Palmas, Liberia.
- The airport resides at an elevation of 9 feet above mean sea level.
- The airport was built in December 1943 by United States Navy Seabees and was named "Mullinix Field", in honor of Rear Admiral Henry M.