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Flight distance & time
Washington Dulles International Airport → Spirit of St Louis Airport
IADSUS
- Distance
- 1,142 km · 709 mi
- Flight time
- 02h 10m
- CO₂ per passenger
- 102 kg
This Washington Dulles International Airport → Spirit of St Louis Airport route is 1,142 km (709 mi) end to end. The estimated flight time is 02h 10m, and a passenger's share of CO₂ works out at roughly 102 kg.
See the reverse route: Spirit of St Louis Airport → Washington Dulles International Airport
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Your route
- FromIADWashington Dulles International AirportDulles, Virginia
- ToSUSSpirit of St Louis AirportSt Louis, Missouri
Flight map
Track your lifetime distance flown across every trip.
Route service
Average daily flights~1 flights/day
Airlines on this route
DCMFlexjetGHANetJets Aviation
Common questions
Washington Dulles International Airport to Spirit of St Louis Airport FAQ
How far is Washington Dulles International Airport from Spirit of St Louis Airport?
Washington Dulles International Airport (IAD) and Spirit of St Louis Airport (SUS) are 1,142 km (709 mi) apart, measured along the great-circle route.
How long is the flight from Washington Dulles International Airport to Spirit of St Louis Airport?
A direct IAD–SUS flight covers the distance in about 02h 10m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from Washington Dulles International Airport to Spirit of St Louis Airport produce?
A passenger's share of CO₂ on the IAD–SUS route is roughly 102 kg.
Which airlines fly from Washington Dulles International Airport to Spirit of St Louis Airport?
DCM, Flexjet, GHA, NetJets Aviation operate scheduled service between IAD and SUS.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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