Nonstop flight route between Sault Ste Marie, Michigan, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from CIU to CPS:
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- About this route
- CIU Airport Information
- CPS Airport Information
- Facts about CIU
- Facts about CPS
- Map of Nearest Airports to CIU
- List of Nearest Airports to CIU
- Map of Furthest Airports from CIU
- List of Furthest Airports from CIU
- 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 Chippewa County International Airport (CIU), Sault Ste Marie, Michigan, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 604 miles (or 973 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 Chippewa County 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: | CIU / KCIU |
Airport Name: | Chippewa County International Airport |
Location: | Sault Ste Marie, Michigan, United States |
GPS Coordinates: | 46°15'2"N by 84°28'20"W |
Area Served: | Sault Ste. Marie, Michigan |
Operator/Owner: | Chippewa County EDC |
Airport Type: | Public |
Elevation: | 799 feet (244 meters) |
# of Runways: | 2 |
View all routes: | Routes from CIU |
More Information: | CIU 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 Chippewa County International Airport (CIU):
- As per the Federal Aviation Administration, this airport had 13,269 passenger boardings in calendar year 2008, 13,173 in 2009, and 14,349 in 2010.
- The furthest airport from Chippewa County International Airport (CIU) is Margaret River Airport (MGV), which is located 11,103 miles (17,869 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Chippewa County International Airport (CIU) is Kincheloe Air Force Base (INR), which is located only 0 mile (0 kilometer) N of CIU.
- Because of Chippewa County International Airport's relatively low elevation of 799 feet, planes can take off or land at Chippewa County International 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.
- Chippewa County International Airport (CIU) has 2 runways.
Facts about St. Louis Downtown Airport (CPS):
- 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 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.
- 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.