Nonstop flight route between St. Louis, Missouri, United States and Port Williams, Kodiak Island Borough, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from STL to KPR:
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- About this route
- STL Airport Information
- KPR Airport Information
- Facts about STL
- Facts about KPR
- Map of Nearest Airports to STL
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- Map of Furthest Airports from STL
- List of Furthest Airports from STL
- Map of Nearest Airports to KPR
- List of Nearest Airports to KPR
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- List of Furthest Airports from KPR
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Port Williams Seaplane Base (KPR), Port Williams, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 3,016 miles (or 4,854 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 Lambert–St. Louis International Airport and Port Williams Seaplane Base, 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 Lambert–St. Louis International Airport and Port Williams Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | KPR / |
Airport Name: | Port Williams Seaplane Base |
Location: | Port Williams, Kodiak Island Borough, Alaska, United States |
GPS Coordinates: | 58°29'24"N by 152°34'55"W |
Area Served: | Port Williams, Alaska |
Operator/Owner: | Washington Fish & Oyster |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from KPR |
More Information: | KPR Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- Lambert–St. Louis International Airport (STL) has 4 runways.
- The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
- During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
- The airport grew from a balloon launching base, Kinloch Field, part of the 1890s Kinloch Park suburban development.
- On July 16, 2003, AA announced it was significantly reducing its Lambert hub effective November 1, 2003, cutting it from 417 daily flights to 207, effective November 1, 2003.
- In 1985, Southwest Airlines began service, an event that would lead to major changes at the airport in the coming years.
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis International 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 Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- As of May 2012, the airport is on a significant upswing, with traffic up by about 14%.
Facts about Port Williams Seaplane Base (KPR):
- Port Williams Seaplane Base has one seaplane landing area designated E/W with a water surface measuring 10,000 by 4,000 feet.
- The furthest airport from Port Williams Seaplane Base (KPR) is Port Elizabeth International Airport (PLZ), which is located 10,742 miles (17,287 kilometers) away in Port Elizabeth, South Africa.
- Because of Port Williams Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Williams Seaplane Base 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 Port Williams Seaplane Base (KPR) is Kitoi Bay Seaplane Base (KKB), which is located 22 miles (35 kilometers) SSE of KPR.
- Port Williams Seaplane Base (KPR) currently has only 1 runway.
- Scheduled passenger service to Kodiak, Alaska, is subsidized by the United States Department of Transportation via the Essential Air Service program.