Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Olga Bay, Kodiak Island Borough, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to KOY:
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- About this route
- CPS Airport Information
- KOY Airport Information
- Facts about CPS
- Facts about KOY
- 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 KOY
- List of Nearest Airports to KOY
- Map of Furthest Airports from KOY
- List of Furthest Airports from KOY
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Olga Bay Seaplane Base (KOY), Olga Bay, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 3,097 miles (or 4,985 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 Olga Bay 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 St. Louis Downtown Airport and Olga Bay 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: | 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: | KOY / |
Airport Name: | Olga Bay Seaplane Base |
Location: | Olga Bay, Kodiak Island Borough, Alaska, United States |
GPS Coordinates: | 57°9'41"N by 154°13'46"W |
Area Served: | Olga Bay, Alaska |
Operator/Owner: | Alaska Packers Association |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from KOY |
More Information: | KOY 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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.
- 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.
Facts about Olga Bay Seaplane Base (KOY):
- The closest airport to Olga Bay Seaplane Base (KOY) is Moser Bay Seaplane Base (KMY), which is located only 10 miles (16 kilometers) SSE of KOY.
- Because of Olga Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Olga Bay 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 furthest airport from Olga Bay Seaplane Base (KOY) is Port Elizabeth International Airport (PLZ), which is located 10,835 miles (17,438 kilometers) away in Port Elizabeth, South Africa.
- Olga Bay Seaplane Base (KOY) currently has only 1 runway.
- Olga Bay Seaplane Base is a public use seaplane base located in Olga Bay, in the Kodiak Island Borough of the U.S.
- Scheduled passenger service to Kodiak, Alaska, is subsidized by the United States Department of Transportation via the Essential Air Service program.