Nonstop flight route between Sidney, Montana, United States and Villa Las Estrellas, Antarctica:
Departure Airport:

Arrival Airport:

Distance from SDY to TNM:
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- About this route
- SDY Airport Information
- TNM Airport Information
- Facts about SDY
- Facts about TNM
- 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 TNM
- List of Nearest Airports to TNM
- Map of Furthest Airports from TNM
- List of Furthest Airports from TNM
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Teniente Rodolfo Marsh Airport (TNM), Villa Las Estrellas, Antarctica would travel a Great Circle distance of 7,992 miles (or 12,861 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 Teniente Rodolfo Marsh 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 Teniente Rodolfo Marsh 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: | TNM / SCRM |
Airport Names: |
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Location: | Villa Las Estrellas, Antarctica |
GPS Coordinates: | 62°11'27"S by 58°59'10"W |
Area Served: | Villa Las Estrellas and Teniente R. Marsh Martin Base |
Operator/Owner: | Aeropuertos Chile |
Airport Type: | Public |
Elevation: | 147 feet (45 meters) |
# of Runways: | 1 |
View all routes: | Routes from TNM |
More Information: | TNM 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.
- Sidney-Richland Municipal Airport covers an area of 335 acres at an elevation of 1,985 feet above mean sea level.
- 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.
Facts about Teniente Rodolfo Marsh Airport (TNM):
- The closest airport to Teniente Rodolfo Marsh Airport (TNM) is Ushuaia International Airport (USH), which is located 607 miles (978 kilometers) NW of TNM.
- In addition to being known as "Teniente Rodolfo Marsh Airport", other names for TNM include "Villa Las Estrellas Airport", "Teniente Rodolfo Marsh Aeropuerto" and "Villa Las Estrellas Aeropuerto".
- The furthest airport from Teniente Rodolfo Marsh Airport (TNM) is Verkhnevilyuysk Airport (VHV), which is nearly antipodal to Teniente Rodolfo Marsh Airport (meaning Teniente Rodolfo Marsh Airport is almost on the exact opposite side of the Earth from Verkhnevilyuysk Airport), and is located 12,346 miles (19,869 kilometers) away in Verkhnevilyuysk, Woehee Bueluue District, Sakha Republic, Russia.
- Because of Teniente Rodolfo Marsh Airport's relatively low elevation of 147 feet, planes can take off or land at Teniente Rodolfo Marsh 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.
- Teniente Rodolfo Marsh Airport (TNM) currently has only 1 runway.