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

Arrival Airport:

Distance from CPS to ZSW:
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- About this route
- CPS Airport Information
- ZSW Airport Information
- Facts about CPS
- Facts about 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
- Map of Nearest Airports to ZSW
- List of Nearest Airports to ZSW
- Map of Furthest Airports from ZSW
- List of Furthest Airports from ZSW
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Prince Rupert/Seal Cove Water Airport (ZSW), Prince Rupert, British Columbia, Canada 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 St. Louis Downtown Airport and Prince Rupert/Seal Cove Water Airport, 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: | 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 |
Facts about St. Louis Downtown Airport (CPS):
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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.
- 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.
- 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.
- 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 Prince Rupert/Seal Cove Water Airport (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.
- 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.