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Flight distance & time
St Louis Regional Airport → Washington Dulles International Airport
ALNIAD
- Distance
- 1,088 km · 676 mi
- Flight time
- 02h 06m
- CO₂ per passenger
- 97 kg
This St Louis Regional Airport → Washington Dulles International Airport route is 1,088 km (676 mi) end to end. The estimated flight time is 02h 06m, and a passenger's share of CO₂ works out at roughly 97 kg.
See the reverse route: Washington Dulles International Airport → St Louis Regional Airport
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Your route
- FromALNSt Louis Regional AirportAlton/St Louis, Illinois
- ToIADWashington Dulles International AirportDulles, Virginia
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
St Louis Regional Airport to Washington Dulles International Airport FAQ
How far is St Louis Regional Airport from Washington Dulles International Airport?
St Louis Regional Airport (ALN) and Washington Dulles International Airport (IAD) are 1,088 km (676 mi) apart, measured along the great-circle route.
How long is the flight from St Louis Regional Airport to Washington Dulles International Airport?
A direct ALN–IAD flight covers the distance in about 02h 06m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from St Louis Regional Airport to Washington Dulles International Airport produce?
A passenger's share of CO₂ on the ALN–IAD route is roughly 97 kg.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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