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

Search for flights from St. Louis to Washington D.C.. Find affordable one-way or round-trip flights.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • STL06:16
        1h 59m
        Direct
        DCA09:15
        St. Louis - Washington D.C.|Sat, May 11|American Airlines
        US$78US$137
        43% OFF
        43% OFF
        US$137US$78
      • STL06:20
        2h 1m
        Direct
        DCA09:21
        St. Louis - Washington D.C.|Tue, Apr 30|American Airlines
        US$78US$137
        43% OFF
        43% OFF
        US$137US$78
      • STL06:20
        2h 1m
        Direct
        DCA09:21
        St. Louis - Washington D.C.|Sat, May 4|American Airlines
        US$80US$137
        42% OFF
        42% OFF
        US$137US$80
      • STL06:16
        1h 59m
        Direct
        DCA09:15
        St. Louis - Washington D.C.|Wed, May 8|American Airlines
        US$80
        US$80
      • STL06:16
        1h 59m
        Direct
        DCA09:15
        St. Louis - Washington D.C.|Tue, May 14|American Airlines
        US$81
        US$81
      • STL17:25
        4h 21m
        1 stop
        DCA22:46
        St. Louis - Washington D.C.|Sat, May 4|Delta Air Lines
        US$82
        US$82
      • STL06:09
        2h 2m
        Direct
        DCA09:11
        St. Louis - Washington D.C.|Wed, Jul 3|American Airlines
        US$82
        US$82
      • STL17:04
        1h 56m
        Direct
        DCA20:00
        St. Louis - Washington D.C.|Tue, May 21|American Airlines
        US$83
        US$83
      • STL20:04
        14h 56m
        1 stop
        DCA12:00
        St. Louis - Washington D.C.|Mon, May 6|Frontier Airlines
        US$83
        US$83
      • STL17:29
        4h 18m
        1 stop
        DCA22:47
        St. Louis - Washington D.C.|Sat, May 11|Delta Air Lines
        US$84
        US$84
      • 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

View airlines operating flights from St. Louis to Washington D.C.. Compare prices and find the airline that meets your travel needs to enjoy a comfortable journey.

American Airlines
From US$78
Delta Air Lines
From US$82
Frontier Airlines
From US$83
United Airlines
From US$111
Southwest Airlines
From US$119
Alaska Airlines
From US$601
ANA airlines
Find more flights and airlines
Flight Schedule from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport

Check on the flight schedule from St. Louis to Washington D.C. to find the flight that matches your travel plan.

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA696

    American Airlines

    06:28

    STL

    2.0h

    Direct

    09:29

    DCA

    SMTWTF-
    Search

  2. AA601

    American Airlines

    08:08

    STL

    2.4h

    11:29

    LGA

    SMTWT--
    Search

  3. AA2174

    American Airlines

    12:24

    LGA

    1.3h

    13:43

    DCA

    SMTWTFS

  4. AA2475

    American Airlines

    09:20

    STL

    1.9h

    12:15

    CLT

    SMTWTFS
    Search

  5. AA372

    American Airlines

    15:07

    CLT

    1.4h

    16:29

    DCA

    SMTWTFS

  6. UA4426

    United Airlines

    10:19

    STL

    1.5h

    11:48

    ORD

    SMTWTFS
    Search

  7. UA439

    United Airlines

    12:45

    ORD

    1.9h

    15:42

    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-S

  10. F93301

    Frontier Airlines

    15:53

    STL

    2.4h

    17:17

    DEN

    -M-W--S
    Search

  11. F9686

    Frontier Airlines

    06:39

    DEN

    3.5h

    12:09

    DCA

    SMTWTFS

  12. F93301

    Frontier Airlines

    15:53

    STL

    2.4h

    17:17

    DEN

    -M-W--S
    Search

  13. F93982

    Frontier Airlines

    16:35

    DEN

    3.4h

    21:59

    DCA

    S-TWTF-

  14. DL5356

    Delta Air Lines

    17:25

    STL

    1.6h

    19:58

    DTW

    SMTWTFS
    Search

  15. DL2073

    Delta Air Lines

    21:25

    DTW

    1.5h

    22:56

    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 price$77
Cheapest return ticket price$142

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

  • How long is a flight from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport?

    It takes around 2 hours 4 minutes to fly from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National 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 3 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 $199 in July, 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 $272 in May, the most expensive month to book this route.

  • What time does the earliest flight from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport depart?

    The earliest flight departs from St. Louis Lambert International Airport (STL) at 06:16 and arrives in Ronald Reagan Washington National Airport (DCA) at 09:15.

  • What time does the latest flight from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport depart?

    The latest flight departs from St. Louis Lambert International Airport (STL) at 17:41 and arrives in Ronald Reagan Washington National Airport (DCA) at 20:49.

  • 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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