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

Explore the cheapest one-way and round-trip flights from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport over the next 90 days, with one-way fares from €84 and round-trip from €152. Based on Trip.com's latest 7-day flight data.

    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sun, Nov 22 | Frontier Airlines
      IAD 8:05 AM
      10h 35m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Thu, Nov 26 | Frontier Airlines
      €152 €221
      31% off
      31% off
      €221 €152
    • STL 4:18 PM
      28h 32m
      1 stop
      DCA 9:50 PM
      St. Louis - Washington D.C. | Thu, Nov 12 | Frontier Airlines
      IAD 8:05 AM
      10h 35m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Thu, Nov 19 | Frontier Airlines
      €152 €221
      31% off
      31% off
      €221 €152
    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sun, Nov 15 | Frontier Airlines
      IAD 7:48 AM
      10h 54m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Thu, Nov 19 | Frontier Airlines
      €158 €221
      28% off
      28% off
      €221 €158
    • STL 3:04 PM
      20h 55m
      1 stop
      DCA 12:59 PM
      St. Louis - Washington D.C. | Tue, Dec 1 | Frontier Airlines
      IAD 6:50 AM
      11h 50m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Sat, Dec 5 | Frontier Airlines
      €167
      24% off
      €221 €167
    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sun, Nov 8 | Frontier Airlines
      IAD 7:40 AM
      11h
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Tue, Nov 10 | Frontier Airlines
      €172
      22% off
      €221 €172
    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sat, Nov 14 | Frontier Airlines
      IAD 7:32 AM
      11h 10m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Sat, Nov 21 | Frontier Airlines
      €174
      21% off
      €221 €174
    • STL 11:40 AM
      9h 10m
      1 stop
      DCA 9:50 PM
      St. Louis - Washington D.C. | Fri, Nov 27 | Frontier Airlines
      IAD 6:50 AM
      11h 50m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Tue, Dec 1 | Frontier Airlines
      €179
      19% off
      €221 €179
    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sat, Nov 21 | Frontier Airlines
      IAD 7:48 AM
      10h 54m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Thu, Nov 26 | Frontier Airlines
      €180
      19% off
      €221 €180
    • STL 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      St. Louis - Washington D.C. | Tue, Oct 27 | Normal Airline
      WAS 3:00 PM
      6h
      Nonstop
      STL 4:00 PM
      Washington D.C. - St. Louis | Thu, Oct 29 | Normal Airline
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    • Cheapest
      STL 4:18 PM
      18h 51m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Thu, Nov 12 | Frontier Airlines
      €84 €115
      27% off
      27% off
      €115 €84
    • STL 6:34 PM
      16h 31m
      1 stop
      DCA 12:05 PM
      St. Louis - Washington D.C. | Tue, Nov 17 | Frontier Airlines
      €86 €115
      25% off
      25% off
      €115 €86
    • STL 6:34 PM
      14h 51m
      1 stop
      DCA 10:25 AM
      St. Louis - Washington D.C. | Sat, Nov 14 | Frontier Airlines
      €93 €115
      19% off
      19% off
      €115 €93
    • STL 4:18 PM
      23h 29m
      1 stop
      DCA 4:47 PM
      St. Louis - Washington D.C. | Thu, Nov 5 | Frontier Airlines
      €93
      19% off
      €115 €93
    • STL 4:18 PM
      18h 51m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Thu, Nov 19 | Frontier Airlines
      €93
      19% off
      €115 €93
    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sun, Nov 15 | Frontier Airlines
      €94
      18% off
      €115 €94
    • STL 7:59 PM
      19h 48m
      1 stop
      DCA 4:47 PM
      St. Louis - Washington D.C. | Tue, Nov 10 | Frontier Airlines
      €95
      17% off
      €115 €95
    • STL 7:54 PM
      20h 1m
      1 stop
      DCA 4:55 PM
      St. Louis - Washington D.C. | Tue, Dec 8 | Frontier Airlines
      €95
      17% off
      €115 €95
    • STL 3:04 PM
      20h 55m
      1 stop
      DCA 12:59 PM
      St. Louis - Washington D.C. | Thu, Nov 26 | Frontier Airlines
      €95
      17% off
      €115 €95
    • STL 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      St. Louis - Washington D.C. | Tue, Oct 27 | Normal Airline
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    • Cheapest nonstop
      STL 3:51 PM
      2h 4m
      Nonstop
      DCA 6:55 PM
      St. Louis - Washington D.C. | Sun, Nov 22 | American Airlines
      €242 €272
      11% off
      11% off
      €272 €242
    • STL 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      St. Louis - Washington D.C. | Tue, Oct 27 | Normal Airline
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    • STL 7:13 AM
      4h 46m
      1 stop
      DCA 12:59 PM
      St. Louis - Washington D.C. | Sun, Nov 22 | Delta Air Lines
      €139 €157
      11% off
      11% off
      €157 €139
    • STL 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      St. Louis - Washington D.C. | Tue, Oct 27 | Normal Airline
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    • STL 3:51 PM
      2h 4m
      Nonstop
      DCA 6:55 PM
      St. Louis - Washington D.C. | Sun, Nov 22 | American Airlines
      €242 €272
      11% off
      11% off
      €272 €242
    • STL 6:34 PM
      14h 51m
      1 stop
      DCA 10:25 AM
      St. Louis - Washington D.C. | Sat, Nov 14 | Frontier Airlines
      €93 €115
      19% off
      19% off
      €115 €93
    • STL 7:59 PM
      15h 10m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Sun, Nov 15 | Frontier Airlines
      €94 €115
      18% off
      18% off
      €115 €94
    • STL 6:34 PM
      16h 31m
      1 stop
      DCA 12:05 PM
      St. Louis - Washington D.C. | Tue, Nov 17 | Frontier Airlines
      €86
      25% off
      €115 €86
    • STL 4:18 PM
      18h 51m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Thu, Nov 12 | Frontier Airlines
      €84
      27% off
      €115 €84
    • STL 4:18 PM
      18h 51m
      1 stop
      DCA 12:09 PM
      St. Louis - Washington D.C. | Thu, Nov 19 | Frontier Airlines
      €93
      19% off
      €115 €93
    • STL 7:59 PM
      19h 48m
      1 stop
      DCA 4:47 PM
      St. Louis - Washington D.C. | Tue, Nov 10 | Frontier Airlines
      €95
      17% off
      €115 €95
    • STL 7:54 PM
      20h 1m
      1 stop
      DCA 4:55 PM
      St. Louis - Washington D.C. | Tue, Dec 8 | Frontier Airlines
      €95
      17% off
      €115 €95
    • STL 3:04 PM
      20h 55m
      1 stop
      DCA 12:59 PM
      St. Louis - Washington D.C. | Thu, Nov 26 | Frontier Airlines
      €95
      17% off
      €115 €95
    • STL 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      St. Louis - Washington D.C. | Tue, Oct 27 | Normal Airline
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Displayed flight fares from St. Louis to Washington D.C. are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport?

The cheapest airline flying from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport is Frontier Airlines (from €84) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From €84
American Airlines
From €106
Delta Air Lines
From €117
United Airlines
From €128

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What is the 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. AA4678

    St. Louis Lambert International Airport

    6:56 AM

    STL

    2h 12m

    10:08 AM

    DCA

    S M T W T F -
    Search

  2. DL1524

    St. Louis Lambert International Airport

    6:00 AM

    STL

    1h 44m

    Nonstop

    8:44 AM

    ATL

    S M T W T F S
    Search

  3. DL380

    Hartsfield–Jackson Atlanta International Airport

    9:45 AM

    ATL

    1h 44m

    Nonstop

    11:29 AM

    DCA

    S M T W T F S

  4. DL1400

    St. Louis Lambert International Airport

    12:00 PM

    STL

    1h 35m

    Nonstop

    2:35 PM

    ATL

    S M T W T F S
    Search

  5. DL950

    Hartsfield–Jackson Atlanta International Airport

    4:59 PM

    ATL

    1h 44m

    Nonstop

    6:43 PM

    DCA

    S M T W T - S

  6. DL1400

    St. Louis Lambert International Airport

    12:00 PM

    STL

    1h 35m

    Nonstop

    2:35 PM

    ATL

    S M T W T F S
    Search

  7. DL832

    Hartsfield–Jackson Atlanta International Airport

    5:30 PM

    ATL

    1h 44m

    Nonstop

    7:14 PM

    DCA

    S M T W T F S
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About St. Louis Lambert International Airport and Ronald Reagan Washington National Airport

Learn about St. Louis Lambert International Airport (STL) and Ronald Reagan Washington National Airport (DCA) — including location, terminals, transportation, and travel tips.

Flight distance 1,154.87 km
Cheapest one-way ticket price €84
Cheapest return ticket price €152

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

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

    St. Louis Lambert International Airport to Ronald Reagan Washington National Airport takes about 1 hour 43 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 4 daily flights from St. Louis Lambert International Airport (STL) to Ronald Reagan Washington National Airport (DCA).
  • The earliest flight from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport departs at 07:03, and the last departs at 19:55, with about 15 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • 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 €248 in November, the most expensive month to book this route.
  • The earliest flight departs from St. Louis Lambert International Airport (STL) at 06:00 and arrives in Ronald Reagan Washington National Airport (DCA) at 09:10.
  • The latest flight departs from St. Louis Lambert International Airport (STL) at 18:08 and arrives in Ronald Reagan Washington National Airport (DCA) at 21:10.
  • American Airlines is a very popular airline operating an average of 1142 flights per month.
  • One-way flights from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport currently start from €84, and round-trip fares start from €152. The current lowest fare is a Frontier Airlines flight departing on Thu, Nov 12; prices may vary depending on availability.
  • Yes. American Airlines operate direct flights from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport, with an average flight time of 1 hour 45 minutes, and around 52 weekly flights. Actual flight frequency may vary by season.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from St. Louis Lambert International Airport to Ronald Reagan Washington National Airport is €190. Prices may vary depending on the departure date, airline, and availability.
  • St. Louis Lambert International Airport to Ronald Reagan Washington National Airport operates around 53 weekly flights, mainly by American Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter St. Louis Lambert International Airport and Ronald Reagan Washington National Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.