Nonstop flight route between Muskrat Dam, Ontario, Canada and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from MSA to CPS:
Share this route:
Jump to:
- About this route
- MSA Airport Information
- CPS Airport Information
- Facts about MSA
- Facts about CPS
- Map of Nearest Airports to MSA
- List of Nearest Airports to MSA
- Map of Furthest Airports from MSA
- List of Furthest Airports from MSA
- 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 Muskrat Dam Airport (MSA), Muskrat Dam, Ontario, Canada and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,030 miles (or 1,658 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 Muskrat Dam 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: | MSA / CZMD |
Airport Name: | Muskrat Dam Airport |
Location: | Muskrat Dam, Ontario, Canada |
GPS Coordinates: | 53°26'29"N by 91°45'46"W |
Operator/Owner: | Government of Ontario |
Airport Type: | Public |
Elevation: | 911 feet (278 meters) |
# of Runways: | 1 |
View all routes: | Routes from MSA |
More Information: | MSA 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 Muskrat Dam Airport (MSA):
- Muskrat Dam Airport (MSA) currently has only 1 runway.
- The furthest airport from Muskrat Dam Airport (MSA) is Margaret River Airport (MGV), which is located 10,556 miles (16,988 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Muskrat Dam Airport's relatively low elevation of 911 feet, planes can take off or land at Muskrat Dam 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 closest airport to Muskrat Dam Airport (MSA) is Sachigo Lake Airport (ZPB), which is located 36 miles (58 kilometers) NNW of MSA.
Facts about St. Louis Downtown Airport (CPS):
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- 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.