Nonstop flight route between Sidney, Montana, United States and Ranong, Thailand:
Departure Airport:

Arrival Airport:

Distance from SDY to UNN:
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- About this route
- SDY Airport Information
- UNN Airport Information
- Facts about SDY
- Facts about UNN
- 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 UNN
- List of Nearest Airports to UNN
- Map of Furthest Airports from UNN
- List of Furthest Airports from UNN
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Ranong Airport (UNN), Ranong, Thailand would travel a Great Circle distance of 8,227 miles (or 13,239 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 Ranong 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 Ranong 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: | UNN / VTSR |
Airport Name: | Ranong Airport |
Location: | Ranong, Thailand |
GPS Coordinates: | 9°46'38"N by 98°35'7"E |
Area Served: | Tambon Ratchakrut, Amphoe Mueang Ranong, Ranong, Thailand |
Operator/Owner: | Government |
Elevation: | 57 feet (17 meters) |
# of Runways: | 1 |
View all routes: | Routes from UNN |
More Information: | UNN Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.
- 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.
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
Facts about Ranong Airport (UNN):
- The closest airport to Ranong Airport (UNN) is Kawthaung Airport (KAW), which is located only 19 miles (31 kilometers) N of UNN.
- The furthest airport from Ranong Airport (UNN) is Capitán FAP Carlos Martínez de Pinillos International Airport (TRU), which is nearly antipodal to Ranong Airport (meaning Ranong Airport is almost on the exact opposite side of the Earth from Capitán FAP Carlos Martínez de Pinillos International Airport), and is located 12,241 miles (19,699 kilometers) away in Trujillo, Peru.
- Because of Ranong Airport's relatively low elevation of 57 feet, planes can take off or land at Ranong 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.
- Ranong Airport (UNN) currently has only 1 runway.