Nonstop flight route between Shemya, Alaska, United States and Sion, Switzerland:
Departure Airport:

Arrival Airport:

Distance from SYA to SIR:
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- About this route
- SYA Airport Information
- SIR Airport Information
- Facts about SYA
- Facts about SIR
- Map of Nearest Airports to SYA
- List of Nearest Airports to SYA
- Map of Furthest Airports from SYA
- List of Furthest Airports from SYA
- Map of Nearest Airports to SIR
- List of Nearest Airports to SIR
- Map of Furthest Airports from SIR
- List of Furthest Airports from SIR
About this route:
A direct, nonstop flight between Eareckson Air Station (SYA), Shemya, Alaska, United States and Sion Airport (SIR), Sion, Switzerland would travel a Great Circle distance of 5,557 miles (or 8,943 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 Eareckson Air Station and Sion 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 Eareckson Air Station and Sion Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | SYA / PASY |
Airport Names: |
|
Location: | Shemya, Alaska, United States |
GPS Coordinates: | 52°42'43"N by 174°6'48"E |
Operator/Owner: | U.S. Air Force |
Airport Type: | Military |
Elevation: | 97 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from SYA |
More Information: | SYA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SIR / LSGS |
Airport Names: |
|
Location: | Sion, Switzerland |
GPS Coordinates: | 46°13'10"N by 7°19'36"E |
Area Served: | Sion, Switzerland |
Elevation: | 1585 feet (483 meters) |
# of Runways: | 2 |
View all routes: | Routes from SIR |
More Information: | SIR Maps & Info |
Facts about Eareckson Air Station (SYA):
- It also became a Strategic Air Command refueling site for B-52 Stratofortress bombers and KC-135 tankers as part of Operation Chrome Dome.
- Eareckson Air Station (SYA) currently has only 1 runway.
- In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and " ".
- On 10 July 1943, eight B-25 Mitchells from the 77th Bombardment Squadron left Adak AAF and refueled at Alexai Point AAF on Attu.
- The furthest airport from Eareckson Air Station (SYA) is Cape Town International Airport (CPT), which is located 10,668 miles (17,168 kilometers) away in Cape Town, South Africa.
- Additional aircraft and personnel reductions occurred in 1945 and almost all air bases other than Alexi Point, Shemya and Davis in the Aleutians were reduced to caretaker status.
- Eareckson Air Station is located on the western tip of Alaska's Aleutian islands near the larger island of Attu, and is located approximately 1500 miles southwest of Anchorage.
- In 1958, the Air Force resumed operations on Shemya in support of various Air Force and Army strategic intelligence collection activities.
- The closest airport to Eareckson Air Station (SYA) is Casco Cove Coast Guard Station (ATU), which is located 40 miles (65 kilometers) WNW of SYA.
- Because of Eareckson Air Station's relatively low elevation of 97 feet, planes can take off or land at Eareckson Air 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.
Facts about Sion Airport (SIR):
- Sion Airport (SIR) has 2 runways.
- The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.
- In addition to being known as "Sion Airport", other names for SIR include "Aéroport de Sion" and "LSGS /LSMS".
- The furthest airport from Sion Airport (SIR) is Chatham Islands (CHT), which is nearly antipodal to Sion Airport (meaning Sion Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,188 miles (19,615 kilometers) away in Waitangi, Chatham Islands, New Zealand.