New calculation
Flight distance & time
Denver International Airport → St Louis Downtown Airport
DENCPS
- Distance
- 1,257 km · 781 mi
- Flight time
- 02h 19m
- CO₂ per passenger
- 113 kg
This Denver International Airport → St Louis Downtown 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: St Louis Downtown Airport → Denver International Airport
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Your route
- FromDENDenver International AirportDenver, Colorado
- ToCPSSt Louis Downtown AirportCahokia/St Louis, Illinois
Flight map
Track your lifetime distance flown across every trip.
Route service
We don't have scheduled-service data for this route — it may be operated by non-commercial or charter flights only.
Common questions
Denver International Airport to St Louis Downtown Airport FAQ
How far is Denver International Airport from St Louis Downtown Airport?
Denver International Airport (DEN) and St Louis Downtown Airport (CPS) are 1,257 km (781 mi) apart, measured along the great-circle route.
How long is the flight from Denver International Airport to St Louis Downtown Airport?
A direct DEN–CPS 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 Denver International Airport to St Louis Downtown Airport produce?
A passenger's share of CO₂ on the DEN–CPS route is roughly 113 kg.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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