Nonstop flight route between St. Mary's, Alaska, United States and Charlotte Amalie, Saint Thomas, United States Virgin Islands:
Departure Airport:

Arrival Airport:

Distance from KSM to STT:
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- About this route
- KSM Airport Information
- STT Airport Information
- Facts about KSM
- Facts about STT
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to STT
- List of Nearest Airports to STT
- Map of Furthest Airports from STT
- List of Furthest Airports from STT
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Cyril E. King Airport (STT), Charlotte Amalie, Saint Thomas, United States Virgin Islands would travel a Great Circle distance of 5,367 miles (or 8,637 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. Mary's Airport and Cyril E. King 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 St. Mary's Airport and Cyril E. King Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | STT / TIST |
Airport Name: | Cyril E. King Airport |
Location: | Charlotte Amalie, Saint Thomas, United States Virgin Islands |
GPS Coordinates: | 18°20'13"N by 64°58'23"W |
Operator/Owner: | Virgin Islands Port Authority |
Airport Type: | Public |
Elevation: | 23 feet (7 meters) |
# of Runways: | 1 |
View all routes: | Routes from STT |
More Information: | STT Maps & Info |
Facts about St. Mary's Airport (KSM):
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- St. Mary's Airport (KSM) has 2 runways.
Facts about Cyril E. King Airport (STT):
- The closest airport to Cyril E. King Airport (STT) is Charlotte Amalie Harbor Seaplane Base (SPB), which is located only 2 miles (3 kilometers) E of STT.
- During World War II, the United States Army Air Forces Sixth Air Force 23rd Fighter Squadron deployed P-40 Warhawk fighters to the airport from March 1942 – May 1943.
- The furthest airport from Cyril E. King Airport (STT) is Barrow Island Airport (BWB), which is nearly antipodal to Cyril E. King Airport (meaning Cyril E. King Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,260 miles (19,731 kilometers) away in Barrow Island, Western Australia, Australia.
- Cyril E. King Airport (STT) currently has only 1 runway.
- Because of Cyril E. King Airport's relatively low elevation of 23 feet, planes can take off or land at Cyril E. King 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.