Nonstop flight route between Île Sainte-Marie, Madagascar and Attu Island, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from SMS to ATU:
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- About this route
- SMS Airport Information
- ATU Airport Information
- Facts about SMS
- Facts about ATU
- Map of Nearest Airports to SMS
- List of Nearest Airports to SMS
- Map of Furthest Airports from SMS
- List of Furthest Airports from SMS
- Map of Nearest Airports to ATU
- List of Nearest Airports to ATU
- Map of Furthest Airports from ATU
- List of Furthest Airports from ATU
About this route:
A direct, nonstop flight between Sainte Marie Airport (SMS), Île Sainte-Marie, Madagascar and Casco Cove Coast Guard Station (ATU), Attu Island, Alaska, United States would travel a Great Circle distance of 8,532 miles (or 13,731 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 Sainte Marie Airport and Casco Cove Coast Guard Station, 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 Sainte Marie Airport and Casco Cove Coast Guard Station. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SMS / FMMS |
Airport Name: | Sainte Marie Airport |
Location: | Île Sainte-Marie, Madagascar |
GPS Coordinates: | 17°5'38"S by 49°48'56"E |
Area Served: | Sainte Marie, Analanjirofo, Madagascar |
Airport Type: | Public |
Elevation: | 7 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from SMS |
More Information: | SMS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | ATU / PAAT |
Airport Names: |
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Location: | Attu Island, Alaska, United States |
GPS Coordinates: | 52°49'57"N by 173°10'32"E |
Operator/Owner: | U.S. Coast Guard 17th Dist. |
Airport Type: | Private use |
Elevation: | 88 feet (27 meters) |
# of Runways: | 1 |
View all routes: | Routes from ATU |
More Information: | ATU Maps & Info |
Facts about Sainte Marie Airport (SMS):
- The closest airport to Sainte Marie Airport (SMS) is Toamasino Airport (TMM), which is located 76 miles (122 kilometers) SSW of SMS.
- The furthest airport from Sainte Marie Airport (SMS) is Guerrero Negro Airport (GUB), which is located 11,161 miles (17,962 kilometers) away in Guerrero Negro, Baja California Sur, Mexico.
- Because of Sainte Marie Airport's relatively low elevation of 7 feet, planes can take off or land at Sainte Marie 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.
- Sainte Marie Airport (SMS) currently has only 1 runway.
Facts about Casco Cove Coast Guard Station (ATU):
- The closest airport to Casco Cove Coast Guard Station (ATU) is Eareckson Air Station (SYA), which is located 40 miles (65 kilometers) ESE of ATU.
- Casco Cove is one of the most isolated and remote airports in the United States.
- In addition to being known as "Casco Cove Coast Guard Station", other names for ATU include "LORAN Station Attu" and "(former Naval Air Facility Attu)".
- Casco Cove CGS resides at elevation of 88 feet above mean sea level.
- Because of Casco Cove Coast Guard Station's relatively low elevation of 88 feet, planes can take off or land at Casco Cove Coast Guard Station 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.
- Casco Cove Coast Guard Station (ATU) currently has only 1 runway.
- The furthest airport from Casco Cove Coast Guard Station (ATU) is Cape Town International Airport (CPT), which is located 10,631 miles (17,109 kilometers) away in Cape Town, South Africa.