Nonstop flight route between São Tomé, São Tomé and Príncipe and Sidney, Montana, United States:
Departure Airport:

Arrival Airport:

Distance from TMS to SDY:
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- About this route
- TMS Airport Information
- SDY Airport Information
- Facts about TMS
- Facts about SDY
- Map of Nearest Airports to TMS
- List of Nearest Airports to TMS
- Map of Furthest Airports from TMS
- List of Furthest Airports from TMS
- Map of Nearest Airports to SDY
- List of Nearest Airports to SDY
- Map of Furthest Airports from SDY
- List of Furthest Airports from SDY
About this route:
A direct, nonstop flight between São Tomé International Airport (TMS), São Tomé, São Tomé and Príncipe and Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States would travel a Great Circle distance of 7,158 miles (or 11,520 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 São Tomé International Airport and Sidney-Richland Municipal 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 São Tomé International Airport and Sidney-Richland Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | TMS / FPST |
Airport Names: |
|
Location: | São Tomé, São Tomé and Príncipe |
GPS Coordinates: | 0°22'41"N by 6°42'43"E |
Area Served: | São Tomé, São Tomé Island, São Tomé and Príncipe |
Airport Type: | Public |
Elevation: | 33 feet (10 meters) |
# of Runways: | 1 |
View all routes: | Routes from TMS |
More Information: | TMS Maps & Info |
Arrival 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 |
Facts about São Tomé International Airport (TMS):
- Because of São Tomé International Airport's relatively low elevation of 33 feet, planes can take off or land at São Tomé 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.
- The furthest airport from São Tomé International Airport (TMS) is Canton Island Airport (CIS), which is nearly antipodal to São Tomé International Airport (meaning São Tomé International Airport is almost on the exact opposite side of the Earth from Canton Island Airport), and is located 12,239 miles (19,696 kilometers) away in Canton Island, Kiribati.
- São Tomé International Airport (TMS) currently has only 1 runway.
- The closest airport to São Tomé International Airport (TMS) is Libreville Leon M'ba International Airport (LBV), which is located 187 miles (300 kilometers) E of TMS.
- In addition to being known as "São Tomé International Airport", another name for TMS is "Aeroporto Internacional de São Tomé".
Facts about Sidney-Richland Municipal Airport (SDY):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- 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.
- Sidney-Richland Municipal Airport (SDY) has 2 runways.
- 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.