Nonstop flight route between St. Mary's, Alaska, United States and Eastleigh (near Southampton), England, United Kingdom:
Departure Airport:

Arrival Airport:

Distance from KSM to SOU:
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- About this route
- KSM Airport Information
- SOU Airport Information
- Facts about KSM
- Facts about SOU
- 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 SOU
- List of Nearest Airports to SOU
- Map of Furthest Airports from SOU
- List of Furthest Airports from SOU
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Southampton Airport (SOU), Eastleigh (near Southampton), England, United Kingdom would travel a Great Circle distance of 4,566 miles (or 7,348 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 Southampton 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 Southampton 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: | SOU / EGHI |
Airport Name: | Southampton Airport |
Location: | Eastleigh (near Southampton), England, United Kingdom |
GPS Coordinates: | 50°57'1"N by 1°21'24"W |
Area Served: | Southampton |
Operator/Owner: | Heathrow Airport Holdings |
Airport Type: | Public |
Elevation: | 44 feet (13 meters) |
# of Runways: | 1 |
View all routes: | Routes from SOU |
More Information: | SOU Maps & Info |
Facts about St. Mary's Airport (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.
- 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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
Facts about Southampton Airport (SOU):
- The furthest airport from Southampton Airport (SOU) is Dunedin International Airport (DUD), which is located 11,918 miles (19,179 kilometers) away in Dunedin, Otago, New Zealand.
- During the First World War, when forces from the United States Navy arrived in 1917, work on the building of hangars began.
- Because of Southampton Airport's relatively low elevation of 44 feet, planes can take off or land at Southampton 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 Southampton Airport (SOU) is Lasham Airfield (QLA), which is located 22 miles (35 kilometers) NE of SOU.
- Southampton Airport handled 1,722,758 passengers last year.
- Southampton Airport is served by a dedicated mainline railway station, Southampton Airport Parkway.
- Southampton Airport (SOU) currently has only 1 runway.
- After that war, the site became a transit camp for refugees, mainly Russian, who were anxious to sail to America from the port of Southampton.
- During the 1950s a mainstay of business for the airport was the Cross channel car ferry service operated by Silver City Airways using Bristol Freighters and Superfreighters.