Nonstop flight route between Missoula, Montana, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from MSO to CPS:
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- About this route
- MSO Airport Information
- CPS Airport Information
- Facts about MSO
- Facts about CPS
- Map of Nearest Airports to MSO
- List of Nearest Airports to MSO
- Map of Furthest Airports from MSO
- List of Furthest Airports from MSO
- 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 Missoula International Airport (MSO), Missoula, Montana, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,337 miles (or 2,152 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 Missoula International 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: | MSO / KMSO |
Airport Names: |
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Location: | Missoula, Montana, United States |
GPS Coordinates: | 46°54'59"N by 114°5'26"W |
Area Served: | Missoula, Montana |
Operator/Owner: | Missoula County Airport Authority |
Airport Type: | Public |
Elevation: | 3206 feet (977 meters) |
# of Runways: | 2 |
View all routes: | Routes from MSO |
More Information: | MSO 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 Missoula International Airport (MSO):
- The closest airport to Missoula International Airport (MSO) is Glacier Park International Airport (FCA), which is located 97 miles (156 kilometers) N of MSO.
- Missoula International Airport (MSO) has 2 runways.
- The furthest airport from Missoula International Airport (MSO) is Tôlanaro Airport (FTU), which is located 10,601 miles (17,061 kilometers) away in Tôlanaro, Madagascar.
- Missoula International Airport handled 594,057 passengers last year.
- Missoula's first landing strip was laid out in 1923 south of the university.
- In addition to being known as "Missoula International Airport", another name for MSO is "Johnson-Bell Field".
Facts about St. Louis Downtown Airport (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.
- 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.
- 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 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.