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Flight distance & time
St Louis Downtown Airport → Washington Dulles International Airport
CPSIAD
- Distance
- 1,101 km · 684 mi
- Flight time
- 02h 07m
- CO₂ per passenger
- 99 kg
This St Louis Downtown Airport → Washington Dulles International Airport route is 1,101 km (684 mi) end to end. The estimated flight time is 02h 07m, and a passenger's share of CO₂ works out at roughly 99 kg.
See the reverse route: Washington Dulles International Airport → St Louis Downtown Airport
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Your route
- FromCPSSt Louis Downtown AirportCahokia/St Louis, Illinois
- ToIADWashington Dulles International AirportDulles, Virginia
Flight map
Track your lifetime distance flown across every trip.
Route service
Average daily flights~0.1 flights/day
Airlines on this route
Sun Country Airlines
Common questions
St Louis Downtown Airport to Washington Dulles International Airport FAQ
How far is St Louis Downtown Airport from Washington Dulles International Airport?
St Louis Downtown Airport (CPS) and Washington Dulles International Airport (IAD) are 1,101 km (684 mi) apart, measured along the great-circle route.
How long is the flight from St Louis Downtown Airport to Washington Dulles International Airport?
A direct CPS–IAD flight covers the distance in about 02h 07m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from St Louis Downtown Airport to Washington Dulles International Airport produce?
A passenger's share of CO₂ on the CPS–IAD route is roughly 99 kg.
Which airlines fly from St Louis Downtown Airport to Washington Dulles International Airport?
Sun Country Airlines operate scheduled service between CPS and IAD.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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