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

Arrival Airport:

Distance from DTW to CPS:
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- About this route
- DTW Airport Information
- CPS Airport Information
- Facts about DTW
- Facts about CPS
- Map of Nearest Airports to DTW
- List of Nearest Airports to DTW
- Map of Furthest Airports from DTW
- List of Furthest Airports from DTW
- 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 Detroit Metropolitan Wayne County Airport (DTW), Romulus (near Detroit), Michigan, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 437 miles (or 704 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 Detroit Metropolitan Wayne County 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: | DTW / KDTW |
Airport Name: | Detroit Metropolitan Wayne County Airport |
Location: | Romulus (near Detroit), Michigan, United States |
GPS Coordinates: | 42°12'44"N by 83°21'11"W |
Area Served: | Detroit, Michigan |
Operator/Owner: | Wayne County, Michigan |
Airport Type: | Public |
Elevation: | 645 feet (197 meters) |
# of Runways: | 6 |
View all routes: | Routes from DTW |
More Information: | DTW 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 Detroit Metropolitan Wayne County Airport (DTW):
- Pan-Am, and BOAC, were the first passenger airlines at Detroit-Wayne Major.
- Because of Detroit Metropolitan Wayne County Airport's relatively low elevation of 645 feet, planes can take off or land at Detroit Metropolitan Wayne County 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 Detroit Metropolitan Wayne County Airport (DTW) is Margaret River Airport (MGV), which is located 11,285 miles (18,161 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Detroit Metropolitan Wayne County Airport (DTW) is Willow Run Airport (YIP) (YIP), which is located only 9 miles (15 kilometers) W of DTW.
- The A concourse contains 64 gates with 12 gates used for international departures and arrivals processing.
- Detroit Metropolitan Wayne County Airport (DTW) has 6 runways.
- Spirit Airlines, which operated out of many of the gates once used by Northwest, made few upgrades to the gate areas in those parts of the terminal.
- In 2012, Detroit Metropolitan Wayne County Airport was the 16th-busiest airport in the United States and the 44th-busiest airport in the world in terms of passenger traffic.
- On January 29, 2010, the North Terminal was named winner of the "Build Michigan" award project.
- The McNamara Terminal, also once known as the Northwest WorldGateway, opened on February 25, 2002.
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.
- 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 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.