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

Arrival Airport:

Distance from COU to KPR:
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- About this route
- COU Airport Information
- KPR Airport Information
- Facts about COU
- Facts about KPR
- Map of Nearest Airports to COU
- List of Nearest Airports to COU
- Map of Furthest Airports from COU
- List of Furthest Airports from COU
- Map of Nearest Airports to KPR
- List of Nearest Airports to KPR
- Map of Furthest Airports from KPR
- List of Furthest Airports from KPR
About this route:
A direct, nonstop flight between Columbia Regional Airport (COU), Columbia, Missouri, United States and Port Williams Seaplane Base (KPR), Port Williams, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 2,945 miles (or 4,740 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 Columbia Regional 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 Columbia Regional 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: | COU / KCOU |
Airport Name: | Columbia Regional Airport |
Location: | Columbia, Missouri, United States |
GPS Coordinates: | 38°49'5"N by 92°13'10"W |
Area Served: | Columbia, Missouri |
Operator/Owner: | City of Columbia |
Airport Type: | Public |
Elevation: | 889 feet (271 meters) |
# of Runways: | 2 |
View all routes: | Routes from COU |
More Information: | COU 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 Columbia Regional Airport (COU):
- Prior to 2001 service was operated by Trans World Express using Jetstream 41 aircraft to St.
- The closest airport to Columbia Regional Airport (COU) is Jefferson City Memorial Airport (JEF), which is located only 16 miles (26 kilometers) SSE of COU.
- Columbia Regional Airport (COU) has 2 runways.
- This airport is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport.
- The furthest airport from Columbia Regional Airport (COU) is Margaret River Airport (MGV), which is located 10,886 miles (17,519 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Columbia Regional Airport's relatively low elevation of 889 feet, planes can take off or land at Columbia Regional 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.
- There are two flights leaving from Columbia Regional to Dallas/Fort Worth International, operated by American Eagle.
Facts about Port Williams Seaplane Base (KPR):
- 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.
- 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.
- 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.
- Port Williams Seaplane Base has one seaplane landing area designated E/W with a water surface measuring 10,000 by 4,000 feet.
- 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.