Airlines with flights from Washington to Saint Louis
There are four airlines with scheduled flights between DCA and STL. Both Southwest and American Airlines operates non-stop flights from Reagan National to Saint Louis Airport and the flight time is 2 hours and 25 minutes.
Choose airline
Schedules
Non-stop with Southwest Airlines
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Total flight time: 2 hours and 25 minutes
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Low-cost airline
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31 flights per week
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Boeing 737MAX 8 PassengerBoeing 737-700 Passenger (Scimitar Winglets)Boeing 737-800 (winglets) Passenger/BBJ2
Flight
The timetable & schedule information was updated at 2026-04-21
Non-stop with American Airlines
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Total flight time: 2 hours and 31 minutes
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One World Alliance
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Washington is a American Airlines hub.
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18 flights per week
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Canadair (Bombardier) Regional Jet 900Canadair (Bombardier) Regional Jet 700 and Challenger 870
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First class available
Flight
The timetable & schedule information was updated at 2026-04-21
Via Chicago with Southwest Airlines
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Total flight time: 3h 45m - 7h 25m.
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Low-cost airline
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111 flights per week
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Boeing 737MAX 8 PassengerBoeing 737-700 Passenger (Scimitar Winglets)Boeing 737-800 (winglets) Passenger/BBJ2
Flight
WN2900
WN2901
WN2901
WN2902
WN2902
WN103
WN2903
WN1646
WN2904
WN2905
WN2905
WN2905
WN2905
The timetable & schedule information was updated at 2026-04-21
Via Nashville with Southwest Airlines
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Total flight time: 3h 55m - 6h 10m.
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Low-cost airline
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120 flights per week
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Boeing 737MAX 8 PassengerBoeing 737-700 Passenger (Scimitar Winglets)Boeing 737-800 (winglets) Passenger/BBJ2
Flight
WN1371
WN770
WN770
WN682
The timetable & schedule information was updated at 2026-04-21
Via Charlotte with American Airlines
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Total flight time: 4h 02m - 6h 36m.
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One World Alliance
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Washington is a American Airlines hub.
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192 flights per week
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Canadair (Bombardier) Regional Jet 900Canadair (Bombardier) Regional Jet 700 and Challenger 870
Flight
AA5345
AA2733
AA2717
AA2717
AA2731
AA2731
AA2686
AA459
AA459
The timetable & schedule information was updated at 2026-04-21
Via Milwaukee with Southwest Airlines
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Total flight time: 4h 05m - 6h 25m.
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Low-cost airline
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11 flights per week
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Boeing 737MAX 8 PassengerBoeing 737-700 Passenger (Scimitar Winglets)Boeing 737-800 (winglets) Passenger/BBJ2
Flight
WN3599
WN4661
The timetable & schedule information was updated at 2026-04-21

There are four airlines with scheduled flights between DCA and STL. Both Southwest and American Airlines operates non-stop flights from Reagan National to Saint Louis Airport and the flight time is 2 hours and 25 minutes.
Via Atlanta with Delta
Via Chicago with United