Nonstop flight route between St. Theresa Point, Manitoba, Canada and Shemya, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from YST to SYA:
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- About this route
- YST Airport Information
- SYA Airport Information
- Facts about YST
- Facts about SYA
- Map of Nearest Airports to YST
- List of Nearest Airports to YST
- Map of Furthest Airports from YST
- List of Furthest Airports from YST
- Map of Nearest Airports to SYA
- List of Nearest Airports to SYA
- Map of Furthest Airports from SYA
- List of Furthest Airports from SYA
About this route:
A direct, nonstop flight between St. Theresa Point Airport (YST), St. Theresa Point, Manitoba, Canada and Eareckson Air Station (SYA), Shemya, Alaska, United States would travel a Great Circle distance of 3,490 miles (or 5,616 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 St. Theresa Point Airport and Eareckson Air 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 St. Theresa Point Airport and Eareckson Air Station. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | YST / CYST |
Airport Name: | St. Theresa Point Airport |
Location: | St. Theresa Point, Manitoba, Canada |
GPS Coordinates: | 53°50'44"N by 94°51'7"W |
Operator/Owner: | Government of Manitoba |
Airport Type: | Public |
Elevation: | 767 feet (234 meters) |
# of Runways: | 1 |
View all routes: | Routes from YST |
More Information: | YST Maps & Info |
Arrival 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 |
Facts about St. Theresa Point Airport (YST):
- St. Theresa Point Airport (YST) currently has only 1 runway.
- Because of St. Theresa Point Airport's relatively low elevation of 767 feet, planes can take off or land at St. Theresa Point 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 closest airport to St. Theresa Point Airport (YST) is Island Lake Airport (YIV), which is located only 8 miles (13 kilometers) E of YST.
- The furthest airport from St. Theresa Point Airport (YST) is Margaret River Airport (MGV), which is located 10,435 miles (16,793 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Eareckson Air Station (SYA):
- 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.
- After the disastrous attack, the focus of Eleventh Air Force was shifted to a defensive posture in the event of retaliatory attacks from the Japanese.
- On 6 April 1993, Shemya Air Force Base was renamed Eareckson Air Station.
- In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and " ".
- In July 1973, Raytheon won a contract to build a system called COBRA DANE on Shemya.
- 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.
- The mission of Eleventh Air Force was to take advantage of the new airfields on Shemya and Attu, and carry out offensive operations against the enemy forces in the Kuriles.
- The Korean War brought extensive use by the Military Air Transport Service for the logistical support of Korea and Japan.
- Eareckson Air Station (SYA) currently has only 1 runway.
- 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.