Cheap Flights from Washington (DCA) to St. Louis (STL)
Popular airlines from Ronald Reagan Washington National Airport (DCA) to St. Louis Lambert Intl. Airport (STL)
American AirlinesAmerican Airlines
Southwest AirlinesSouthwest Airlines
UnitedUnited
DeltaDelta
Alaska AirlinesAlaska Airlines
Frontier AirlinesFrontier Airlines
Be in the knowGet alerts if flight prices drop or rise*
Book smarterSave up to 40% on select hotels after you book a flight*
Travel information
Origin airport | Ronald Reagan Washington National Airport |
|---|---|
Destination airport | St. Louis Lambert Intl. Airport |
Distance | 1,153 km away |
Airlines serving | American Airlines, Southwest Airlines, United, Delta, Alaska Airlines, Frontier Airlines |
Popular airline | American Airlines |
Average flight time | 2 hours 31 mins |
*Available to One Key members.