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Flight distance & time
Lambert St Louis International Airport → Ronald Reagan Washington National Airport
STLDCA
- Distance
- 1,154 km · 717 mi
- Flight time
- 02h 11m
- CO₂ per passenger
- 103 kg
This Lambert St Louis International Airport → Ronald Reagan Washington National Airport route is 1,154 km (717 mi) end to end. The estimated flight time is 02h 11m, and a passenger's share of CO₂ works out at roughly 103 kg.
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Your route
- FromSTLLambert St Louis International AirportSt Louis, Missouri
- ToDCARonald Reagan Washington National AirportWashington, Virginia
Flight map
Track your lifetime distance flown across every trip.
Route service
Average daily flights~11 flights/day
Airlines on this route
American AirlinesSouthwest Airlines
Common questions
Lambert St Louis International Airport to Ronald Reagan Washington National Airport FAQ
How far is Lambert St Louis International Airport from Ronald Reagan Washington National Airport?
Lambert St Louis International Airport (STL) and Ronald Reagan Washington National Airport (DCA) are 1,154 km (717 mi) apart, measured along the great-circle route.
How long is the flight from Lambert St Louis International Airport to Ronald Reagan Washington National Airport?
A direct STL–DCA flight covers the distance in about 02h 11m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from Lambert St Louis International Airport to Ronald Reagan Washington National Airport produce?
A passenger's share of CO₂ on the STL–DCA route is roughly 103 kg.
Which airlines fly from Lambert St Louis International Airport to Ronald Reagan Washington National Airport?
American Airlines, Southwest Airlines operate scheduled service between STL and DCA.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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