Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and South Naknek, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to WSN:
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- About this route
- CPS Airport Information
- WSN Airport Information
- Facts about CPS
- Facts about WSN
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to WSN
- List of Nearest Airports to WSN
- Map of Furthest Airports from WSN
- List of Furthest Airports from WSN
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and South Naknek Airport (WSN), South Naknek, Alaska, United States would travel a Great Circle distance of 3,190 miles (or 5,134 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. Louis Downtown Airport and South Naknek 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. Louis Downtown Airport and South Naknek Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | WSN / PFWS |
Airport Names: |
|
Location: | South Naknek, Alaska, United States |
GPS Coordinates: | 58°42'7"N by 157°0'8"W |
Area Served: | South Naknek, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Central Region |
Airport Type: | Public |
Elevation: | 162 feet (49 meters) |
# of Runways: | 2 |
View all routes: | Routes from WSN |
More Information: | WSN Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
Facts about South Naknek Airport (WSN):
- The closest airport to South Naknek Airport (WSN) is Naknek Airport (NNK), which is located only 2 miles (4 kilometers) NNW of WSN.
- Because of South Naknek Airport's relatively low elevation of 162 feet, planes can take off or land at South Naknek 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.
- As per Federal Aviation Administration records, this airport had 330 commercial passenger boardings in calendar year 2008, a decrease of 19% from the 409 enplanements in 2007.
- In addition to being known as "South Naknek Airport", another name for WSN is "South Naknek Nr 2 Airport".
- South Naknek Airport (WSN) has 2 runways.
- The furthest airport from South Naknek Airport (WSN) is George Airport (GRJ), which is located 10,730 miles (17,269 kilometers) away in George, South Africa.