Nonstop flight route between Sidney, Montana, United States and Atar, Mauritania:
Departure Airport:

Arrival Airport:

Distance from SDY to ATR:
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- About this route
- SDY Airport Information
- ATR Airport Information
- Facts about SDY
- Facts about ATR
- 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 ATR
- List of Nearest Airports to ATR
- Map of Furthest Airports from ATR
- List of Furthest Airports from ATR
About this route:
A direct, nonstop flight between Sidney-Richland Municipal Airport (SDY), Sidney, Montana, United States and Atar Airport (ATR), Atar, Mauritania would travel a Great Circle distance of 5,232 miles (or 8,421 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 Atar 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 Atar 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: | ATR / GQPA |
Airport Name: | Atar Airport |
Location: | Atar, Mauritania |
GPS Coordinates: | 20°30'24"N by 13°2'35"W |
Operator/Owner: | Government |
Airport Type: | Public |
Elevation: | 758 feet (231 meters) |
# of Runways: | 1 |
View all routes: | Routes from ATR |
More Information: | ATR Maps & Info |
Facts about Sidney-Richland Municipal Airport (SDY):
- 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.
- 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 (SDY) has 2 runways.
Facts about Atar Airport (ATR):
- Atar Airport (ATR) currently has only 1 runway.
- Because of Atar Airport's relatively low elevation of 758 feet, planes can take off or land at Atar 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 Atar Airport (ATR) is Maré Airport (MEE), which is nearly antipodal to Atar Airport (meaning Atar Airport is almost on the exact opposite side of the Earth from Maré Airport), and is located 12,340 miles (19,859 kilometers) away in Maré, Loyalty Islands, New Caledonia.
- The closest airport to Atar Airport (ATR) is Akjoujt Airport (AJJ), which is located 102 miles (164 kilometers) WSW of ATR.