Nonstop flight route between Chesterfield, Missouri, United States and Attu Island, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from SUS to ATU:
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- About this route
- SUS Airport Information
- ATU Airport Information
- Facts about SUS
- Facts about ATU
- Map of Nearest Airports to SUS
- List of Nearest Airports to SUS
- Map of Furthest Airports from SUS
- List of Furthest Airports from SUS
- 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 Spirit of St. Louis Airport (SUS), Chesterfield, Missouri, United States and Casco Cove Coast Guard Station (ATU), Attu Island, Alaska, United States would travel a Great Circle distance of 4,383 miles (or 7,054 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 Spirit of St. Louis 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 Spirit of St. Louis 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: | SUS / KSUS |
Airport Name: | Spirit of St. Louis Airport |
Location: | Chesterfield, Missouri, United States |
GPS Coordinates: | 38°39'43"N by 90°39'6"W |
Operator/Owner: | St. Louis County |
Airport Type: | Public |
Elevation: | 463 feet (141 meters) |
# of Runways: | 2 |
View all routes: | Routes from SUS |
More Information: | SUS 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 Spirit of St. Louis Airport (SUS):
- The closest airport to Spirit of St. Louis Airport (SUS) is Lambert–St. Louis International Airport (STL), which is located only 17 miles (27 kilometers) ENE of SUS.
- In 2007, the airport finished a multi-million dollar expansion project to add a parallel taxiway to the north of 26R/8L.
- Because of Spirit of St. Louis Airport's relatively low elevation of 463 feet, planes can take off or land at Spirit of St. Louis 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.
- Spirit of St. Louis Airport (SUS) has 2 runways.
- The furthest airport from Spirit of St. Louis Airport (SUS) is Margaret River Airport (MGV), which is located 10,971 miles (17,656 kilometers) away in Margaret River, Western Australia, Australia.
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.
- On January 1, 1945, 2nd Lt.
- 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.
- Casco Cove is one of the most isolated and remote airports in the United States.
- 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.
- 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)".