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

Arrival Airport:

Distance from DEN to CPS:
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- About this route
- DEN Airport Information
- CPS Airport Information
- Facts about DEN
- Facts about CPS
- Map of Nearest Airports to DEN
- List of Nearest Airports to DEN
- Map of Furthest Airports from DEN
- List of Furthest Airports from DEN
- 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 Denver International Airport (DEN), Denver, Colorado, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 781 miles (or 1,257 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 Denver 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: | DEN / KDEN |
Airport Name: | Denver International Airport |
Location: | Denver, Colorado, United States |
GPS Coordinates: | 39°51'42"N by 104°40'23"W |
Area Served: | Denver, Front Range Megalopolis, Northern Colorado, Eastern Colorado |
Operator/Owner: | City & County of Denver Department of Aviation |
Airport Type: | Public |
Elevation: | 5431 feet (1,655 meters) |
# of Runways: | 6 |
View all routes: | Routes from DEN |
More Information: | DEN 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 Denver International Airport (DEN):
- All international flights requiring customs and immigration services currently fly into Concourse A.
- Airport officials say its large area contributes to DIA having the highest number of wildlife strikes of any airport in the United States.
- The furthest airport from Denver International Airport (DEN) is Sir Gaëtan Duval Airport (RRG), which is located 10,877 miles (17,505 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Denver International Airport (DEN) is Centennial Airport (APA), which is located 22 miles (36 kilometers) SSW of DEN.
- Because of Denver International Airport's high elevation of 5,431 feet, planes must typically fly at a faster airspeed in order to takeoff or land at DEN. Combined with a high temperature, this could make DEN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- DIA has Wi-Fi access throughout the airport.
- Denver International Airport handled 52,556,359 passengers last year.
- Denver International Airport (DEN) has 6 runways.
- DIA's Art Collection was recently honored by the publishers of USA TODAY, for being of the ten best airports for public art in the United States.
- In 2004, DIA was ranked first in major airports for on-time arrivals according to the FAA.
Facts about St. Louis Downtown Airport (CPS):
- 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.
- 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.
- 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.