Washington to St Louis
IADSTL
Fly from Washington to St Louis starting at USD 285 with American Airlines.
Best fare available on Jul 13, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to St Louis cheapest flights this week
Washington to St Louis monthly flight fare trend
Jul
from USD 285
Aug
No flights
Sep
No flights
Oct
No flights
Nov
No flights
Dec
No flights
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
St Louis
St. Louis Lambert International Airport (STL)
St Louis, STL
Zone
Chicago
Elev
618 ft
Flights from Washington
Flights from Washington to AtlantaFlights from Washington to AustinFlights from Washington to BostonFlights from Washington to CharlotteFlights from Washington to DenverFlights from Washington to DallasFlights from Washington to DetroitFlights from Washington to NewarkFlights from Washington to Fort LauderdaleFlights from Washington to Honolulu
