Nonstop flight route between Louisville, Kentucky, United States and St. Mary's, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from LOU to KSM:
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- About this route
- LOU Airport Information
- KSM Airport Information
- Facts about LOU
- Facts about KSM
- Map of Nearest Airports to LOU
- List of Nearest Airports to LOU
- Map of Furthest Airports from LOU
- List of Furthest Airports from LOU
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Bowman Field (LOU), Louisville, Kentucky, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,543 miles (or 5,702 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 Bowman Field and St. Mary's 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 Bowman Field and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | LOU / KLOU |
Airport Name: | Bowman Field |
Location: | Louisville, Kentucky, United States |
GPS Coordinates: | 38°13'41"N by 85°39'48"W |
Area Served: | Louisville, Kentucky |
Operator/Owner: | Louisville Regional Airport Authority (LRAA) |
Airport Type: | Public |
Elevation: | 546 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from LOU |
More Information: | LOU Maps & Info |
Arrival 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 |
Facts about Bowman Field (LOU):
- Bowman Field is operated by the Louisville Regional Airport Authority, which also operates Louisville International Airport.
- The closest airport to Bowman Field (LOU) is Louisville International Airport (SDF), which is located only 5 miles (9 kilometers) SW of LOU.
- The dominant landmark of Bowman Field is its terminal, known as the Administration Building, styled in aerodynamic Moderne.
- During the 1920s and 1930s, Eastern Air Lines, Trans World Airlines and the original Continental Airlines operated passenger and mail service in and out of Bowman Field.
- Kentucky Flying Service is no longer in operation.
- Bowman Field (LOU) has 2 runways.
- The furthest airport from Bowman Field (LOU) is Margaret River Airport (MGV), which is located 11,243 miles (18,093 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Bowman Field's relatively low elevation of 546 feet, planes can take off or land at Bowman Field 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 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 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.
- 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.
- St. Mary's Airport (KSM) has 2 runways.