Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Friday Harbor, Washington, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to FBS:
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- About this route
- CPS Airport Information
- FBS Airport Information
- Facts about CPS
- Facts about FBS
- 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 FBS
- List of Nearest Airports to FBS
- Map of Furthest Airports from FBS
- List of Furthest Airports from FBS
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Friday Harbor Seaplane Base (FBS), Friday Harbor, Washington, United States would travel a Great Circle distance of 1,766 miles (or 2,842 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 relatively short distance between St. Louis Downtown Airport and Friday Harbor Seaplane Base, the route shown on this map most likely still appears to be a straight line.
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: | FBS / |
Airport Names: |
|
Location: | Friday Harbor, Washington, United States |
GPS Coordinates: | 48°32'13"N by 123°0'34"W |
Area Served: | Friday Harbor, Washington |
Operator/Owner: | Port of Friday Harbor |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 2 |
View all routes: | Routes from FBS |
More Information: | FBS Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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.
Facts about Friday Harbor Seaplane Base (FBS):
- The closest airport to Friday Harbor Seaplane Base (FBS) is Friday Harbor Airport (FRD), which is located only 1 miles (2 kilometers) SSW of FBS.
- In addition to being known as "Friday Harbor Seaplane Base", another name for FBS is "W33".
- Friday Harbor Seaplane Base (FBS) has 2 runways.
- The furthest airport from Friday Harbor Seaplane Base (FBS) is Tôlanaro Airport (FTU), which is located 10,724 miles (17,259 kilometers) away in Tôlanaro, Madagascar.
- Because of Friday Harbor Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Friday Harbor 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.