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St. Louis Lambert International Airport to Ronald Reagan Washington National Airport flight
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Cheap Flight Deals from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport

Search for flights from St. Louis to Washington D.C. and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • STL06:16
        1h 59m
        Direct
        DCA09:15
        St. Louis - Washington D.C.|Sat, May 11|American Airlines
        CAD 106CAD 190
        44% OFF
        44% OFF
        CAD 190CAD 106
      • STL06:20
        2h 1m
        Direct
        DCA09:21
        St. Louis - Washington D.C.|Tue, Apr 30|American Airlines
        CAD 106CAD 190
        44% OFF
        44% OFF
        CAD 190CAD 106
      • STL06:16
        1h 59m
        Direct
        DCA09:15
        St. Louis - Washington D.C.|Wed, May 8|American Airlines
        CAD 110CAD 190
        42% OFF
        42% OFF
        CAD 190CAD 110
      • STL06:16
        1h 59m
        Direct
        DCA09:15
        St. Louis - Washington D.C.|Tue, May 14|American Airlines
        CAD 111
        CAD 111
      • STL06:09
        2h 2m
        Direct
        DCA09:11
        St. Louis - Washington D.C.|Wed, Jul 3|American Airlines
        CAD 112
        CAD 112
      • STL17:04
        1h 56m
        Direct
        DCA20:00
        St. Louis - Washington D.C.|Tue, May 21|American Airlines
        CAD 113
        CAD 113
      • STL17:04
        1h 56m
        Direct
        DCA20:00
        St. Louis - Washington D.C.|Tue, May 7|American Airlines
        CAD 113
        CAD 113
      • STL20:04
        14h 56m
        1 stop
        DCA12:00
        St. Louis - Washington D.C.|Mon, May 6|Frontier Airlines
        CAD 113
        CAD 113
      • STL17:29
        4h 18m
        1 stop
        DCA22:47
        St. Louis - Washington D.C.|Sat, May 11|Delta Air Lines
        CAD 114
        CAD 114
      • STL06:10
        2h 1m
        Direct
        DCA09:11
        St. Louis - Washington D.C.|Wed, Jul 10|American Airlines
        CAD 126
        CAD 126
      • STL13:00
        3h 5m
        Direct
        DCA14:00
        St. Louis - Washington D.C.|Sun, May 5|American Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport

See which airlines fly from St. Louis to Washington D.C.. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

American Airlines
From CAD 106
Frontier Airlines
From CAD 113
United Airlines
From CAD 151
Southwest Airlines
From CAD 162
Delta Air Lines
From CAD 335
Alaska Airlines
From CAD 820
ANA airlines
Find more flights and airlines
Flight Schedule from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport

Check the schedule for flights from St. Louis to Washington D.C. and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA696

    American Airlines

    06:16

    STL

    2.0h

    Direct

    09:15

    DCA

    SMTWTF-
    Search

  2. AA2475

    American Airlines

    09:20

    STL

    1.9h

    12:15

    CLT

    SMTWTFS
    Search

  3. AA372

    American Airlines

    15:07

    CLT

    1.4h

    16:29

    DCA

    SMTWTFS

  4. AA601

    American Airlines

    09:25

    STL

    2.4h

    12:46

    LGA

    SMTWT--
    Search

  5. AA2174

    American Airlines

    11:50

    LGA

    1.4h

    13:13

    DCA

    SMTWTFS

  6. UA4426

    United Airlines

    10:19

    STL

    1.5h

    11:48

    ORD

    SMTWTFS
    Search

  7. UA439

    United Airlines

    13:00

    ORD

    1.7h

    15:44

    DCA

    SMTWTFS

  8. UA2467

    United Airlines

    11:10

    STL

    1.4h

    12:31

    ORD

    SMTWT-S
    Search

  9. UA2157

    United Airlines

    16:05

    ORD

    1.9h

    19:00

    DCA

    ---WT--

  10. F93301

    Frontier Airlines

    15:53

    STL

    2.4h

    17:17

    DEN

    -M-W--S
    Search

  11. F93982

    Frontier Airlines

    16:35

    DEN

    3.4h

    21:59

    DCA

    S-TWTF-

  12. UA602

    United Airlines

    17:18

    STL

    1.3h

    18:34

    ORD

    ---WT--
    Search

  13. UA2727

    United Airlines

    19:45

    ORD

    1.9h

    22:40

    DCA

    ---WT--

  14. DL5356

    Delta Air Lines

    17:25

    STL

    1.6h

    19:58

    DTW

    SMTWTFS
    Search

  15. DL2073

    Delta Air Lines

    21:40

    DTW

    1.5h

    23:09

    DCA

    SMTWTFS

  16. F94567

    Frontier Airlines

    20:00

    STL

    2.5h

    21:28

    DEN

    --T----
    Search

  17. F9686

    Frontier Airlines

    06:39

    DEN

    3.5h

    12:09

    DCA

    SMTWTFS

  18. F9007

    Frontier Airlines

    20:41

    STL

    2.5h

    22:12

    DEN

    S---TF-
    Search

  19. F9686

    Frontier Airlines

    06:39

    DEN

    3.5h

    12:09

    DCA

    SMTWTFS
Find more flights and airlines

St. Louis Lambert International Airport to Ronald Reagan Washington National Airport Flights Info

Flight distance1,154.87km
Cheapest one-way ticket priceCAD 106
Cheapest return ticket priceCAD 195

FAQs for St. Louis Lambert International Airport to Ronald Reagan Washington National Airport Flights

  • How long does it take to fly from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA)?

    It takes around 2 hours 4 minutes to fly from St. Louis Lambert International Airport (STL) to St. Louis Lambert International Airport(DCA).

  • How many daily flights are there from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA)?

    There are around 2 daily flights from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA).

  • When are flight tickets from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA) the cheapest?

    Tickets cost around CAD 371 in May, making it the cheapest month to book. St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA) is a popular route, so don't forget to book your tickets in advance.

  • When are flight tickets from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA) most expensive?

    The route from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA) is quite popular. Without considering departure times or holidays, tickets cost around CAD 371 in May, the most expensive month to book this route.

  • Which airline operates the most direct flights from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA)?

    American Airlines is a very popular airline operating an average of 532 flights per month.

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