Nonstop flight route between Prince Rupert, British Columbia, Canada and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from ZSW to CPS:
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- About this route
- ZSW Airport Information
- CPS Airport Information
- Facts about ZSW
- Facts about CPS
- Map of Nearest Airports to ZSW
- List of Nearest Airports to ZSW
- Map of Furthest Airports from ZSW
- List of Furthest Airports from ZSW
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Prince Rupert/Seal Cove Water Airport (ZSW), Prince Rupert, British Columbia, Canada and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 2,158 miles (or 3,473 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 Prince Rupert/Seal Cove Water Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | ZSW / CZSW |
Airport Name: | Prince Rupert/Seal Cove Water Airport |
Location: | Prince Rupert, British Columbia, Canada |
GPS Coordinates: | 54°19'58"N by 130°16'58"W |
Operator/Owner: | Seal Cove Airport Society |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from ZSW |
More Information: | ZSW Maps & Info |
Arrival 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 |
Facts about Prince Rupert/Seal Cove Water Airport (ZSW):
- The furthest airport from Prince Rupert/Seal Cove Water Airport (ZSW) is Port Alfred Airport (AFD), which is located 10,623 miles (17,096 kilometers) away in Port Alfred, South Africa.
- The closest airport to Prince Rupert/Seal Cove Water Airport (ZSW) is Prince Rupert Airport (YPR), which is located only 7 miles (12 kilometers) WSW of ZSW.
- Because of Prince Rupert/Seal Cove Water Airport's relatively low elevation of 0 feet, planes can take off or land at Prince Rupert/Seal Cove Water 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.
Facts about St. Louis Downtown Airport (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.
- 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 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.
- 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.