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Flight distance & time
St Louis Downtown Airport → Denver International Airport
CPSDEN
- Distance
- 1,257 km · 781 mi
- Flight time
- 02h 19m
- CO₂ per passenger
- 113 kg
This St Louis Downtown Airport → Denver International Airport route is 1,257 km (781 mi) end to end. The estimated flight time is 02h 19m, and a passenger's share of CO₂ works out at roughly 113 kg.
See the reverse route: Denver International Airport → St Louis Downtown Airport
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Your route
- FromCPSSt Louis Downtown AirportCahokia/St Louis, Illinois
- ToDENDenver International AirportDenver, Colorado
Flight map
Track your lifetime distance flown across every trip.
Route service
Average daily flights~0.1 flights/day
Airlines on this route
United Airlines
Common questions
St Louis Downtown Airport to Denver International Airport FAQ
How far is St Louis Downtown Airport from Denver International Airport?
St Louis Downtown Airport (CPS) and Denver International Airport (DEN) are 1,257 km (781 mi) apart, measured along the great-circle route.
How long is the flight from St Louis Downtown Airport to Denver International Airport?
A direct CPS–DEN flight covers the distance in about 02h 19m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from St Louis Downtown Airport to Denver International Airport produce?
A passenger's share of CO₂ on the CPS–DEN route is roughly 113 kg.
Which airlines fly from St Louis Downtown Airport to Denver International Airport?
United Airlines operate scheduled service between CPS and DEN.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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