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St. Louis to Washington D.C. flight
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St. Louis Lambert International Airport to Dulles International Airport flight

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

      • Cheapest nonstop
        STL 12:55 PM
        2h 12m
        Nonstop
        IAD 4:07 PM
        St. Louis - Washington D.C. | Tue, Jul 7 | United Airlines
        DCA 8:35 AM
        2h 26m
        Nonstop
        STL 10:01 AM
        Washington D.C. - St. Louis | Tue, Jul 14 | American Airlines
        PHP 18,839 PHP 23,319
        19% off
        19% off
        PHP 23,319 PHP 18,839
      • STL 8:43 AM
        2h 12m
        Nonstop
        IAD 11:55 AM
        St. Louis - Washington D.C. | Wed, Jun 3 | United Airlines
        DCA 2:45 PM
        2h 20m
        Nonstop
        STL 4:05 PM
        Washington D.C. - St. Louis | Sun, Jun 7 |
        PHP 19,121 PHP 23,319
        18% off
        18% off
        PHP 23,319 PHP 19,121
      • STL 6:00 AM
        4h 42m
        1 stop
        IAD 11:42 AM
        St. Louis - Washington D.C. | Mon, May 25 | Delta Air Lines
        IAD 5:31 PM
        7h 28m
        1 stop
        STL 11:59 PM
        Washington D.C. - St. Louis | Mon, May 25 | Delta Air Lines
        PHP 12,681 PHP 23,319
        46% off
        46% off
        PHP 23,319 PHP 12,681
      • STL 5:27 PM
        4h 42m
        1 stop
        IAD 11:09 PM
        St. Louis - Washington D.C. | Fri, May 29 | Frontier Airlines
        DCA 8:00 AM
        2h 20m
        Nonstop
        STL 9:20 AM
        Washington D.C. - St. Louis | Sun, May 31 |
        PHP 12,726
        45% off
        PHP 23,319 PHP 12,726
      • STL 5:27 PM
        4h 42m
        1 stop
        IAD 11:09 PM
        St. Louis - Washington D.C. | Thu, Jun 4 | Frontier Airlines
        IAD 11:07 AM
        7h 26m
        1 stop
        STL 5:33 PM
        Washington D.C. - St. Louis | Mon, Jun 8 | Frontier Airlines
        PHP 12,917
        45% off
        PHP 23,319 PHP 12,917
      • STL 9:21 PM
        9h 51m
        1 stop
        IAD 8:12 AM
        St. Louis - Washington D.C. | Thu, Jun 11 | Frontier Airlines
        DCA 8:00 AM
        2h 10m
        Nonstop
        STL 9:10 AM
        Washington D.C. - St. Louis | Tue, Jun 16 |
        PHP 13,325
        43% off
        PHP 23,319 PHP 13,325
      • STL 9:13 AM
        6h 24m
        1 stop
        IAD 4:37 PM
        St. Louis - Washington D.C. | Tue, Jun 9 | Delta Air Lines
        IAD 7:39 PM
        5h 17m
        1 stop
        STL 11:56 PM
        Washington D.C. - St. Louis | Tue, Jun 16 | Delta Air Lines
        PHP 13,352
        43% off
        PHP 23,319 PHP 13,352
      • STL 5:27 PM
        4h 42m
        1 stop
        IAD 11:09 PM
        St. Louis - Washington D.C. | Fri, May 22 | Frontier Airlines
        DCA 8:41 PM
        2h 26m
        Nonstop
        STL 10:07 PM
        Washington D.C. - St. Louis | Mon, May 25 | American Airlines
        PHP 13,361
        43% off
        PHP 23,319 PHP 13,361
      • STL 5:27 PM
        4h 42m
        1 stop
        IAD 11:09 PM
        St. Louis - Washington D.C. | Tue, May 19 | Frontier Airlines
        DCA 8:12 AM
        2h 25m
        Nonstop
        STL 9:37 AM
        Washington D.C. - St. Louis | Tue, May 26 | American Airlines
        PHP 13,370
        43% off
        PHP 23,319 PHP 13,370
      • STL 5:06 PM
        5h 11m
        1 stop
        IAD 11:17 PM
        St. Louis - Washington D.C. | Tue, Jun 23 | Frontier Airlines
        DCA 8:40 AM
        2h 32m
        Nonstop
        STL 10:12 AM
        Washington D.C. - St. Louis | Mon, Jun 29 | American Airlines
        PHP 13,678
        41% off
        PHP 23,319 PHP 13,678
      • STL 5:06 PM
        5h 11m
        1 stop
        IAD 11:17 PM
        St. Louis - Washington D.C. | Tue, Jun 16 | Frontier Airlines
        IAD 2:59 PM
        2h 31m
        Nonstop
        STL 4:30 PM
        Washington D.C. - St. Louis | Tue, Jun 23 | American Airlines
        PHP 13,678
        41% off
        PHP 23,319 PHP 13,678
      • STL 9:06 PM
        10h 6m
        1 stop
        IAD 8:12 AM
        St. Louis - Washington D.C. | Thu, May 28 | Frontier Airlines
        IAD 11:07 AM
        7h 26m
        1 stop
        STL 5:33 PM
        Washington D.C. - St. Louis | Mon, Jun 1 | Frontier Airlines
        PHP 14,059
        40% off
        PHP 23,319 PHP 14,059
      • STL 1:00 PM
        17h 25m
        1 stop
        WAS 2:00 PM
        St. Louis - Washington D.C. | Sun, May 17 | Normal Airline
        WAS 3:00 PM
        6h
        Nonstop
        STL 4:00 PM
        Washington D.C. - St. Louis | Tue, May 19 | Normal Airline
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      • Cheapest nonstop
        STL 12:55 PM
        2h 12m
        Nonstop
        IAD 4:07 PM
        St. Louis - Washington D.C. | Fri, Jun 12 | United Airlines
        PHP 10,205 PHP 14,326
        28% off
        28% off
        PHP 14,326 PHP 10,205
      • STL 8:43 AM
        2h 12m
        Nonstop
        IAD 11:55 AM
        St. Louis - Washington D.C. | Sun, Jul 5 | United Airlines
        PHP 11,166 PHP 14,326
        22% off
        22% off
        PHP 14,326 PHP 11,166
      • STL 9:21 PM
        9h 51m
        1 stop
        IAD 8:12 AM
        St. Louis - Washington D.C. | Thu, May 28 | Frontier Airlines
        PHP 5,642 PHP 14,326
        61% off
        61% off
        PHP 14,326 PHP 5,642
      • STL 5:06 PM
        5h 11m
        1 stop
        IAD 11:17 PM
        St. Louis - Washington D.C. | Wed, Jun 10 | Frontier Airlines
        PHP 5,706
        60% off
        PHP 14,326 PHP 5,706
      • STL 4:19 PM
        23h 3m
        1 stop
        IAD 4:22 PM
        St. Louis - Washington D.C. | Tue, Jun 2 | Frontier Airlines
        PHP 5,805
        59% off
        PHP 14,326 PHP 5,805
      • STL 5:27 PM
        4h 42m
        1 stop
        IAD 11:09 PM
        St. Louis - Washington D.C. | Sat, May 16 | Frontier Airlines
        PHP 5,824
        59% off
        PHP 14,326 PHP 5,824
      • STL 5:06 PM
        5h 11m
        1 stop
        IAD 11:17 PM
        St. Louis - Washington D.C. | Wed, Jun 17 | Frontier Airlines
        PHP 5,842
        59% off
        PHP 14,326 PHP 5,842
      • STL 5:06 PM
        5h 11m
        1 stop
        IAD 11:17 PM
        St. Louis - Washington D.C. | Wed, Jun 24 | Frontier Airlines
        PHP 5,978
        57% off
        PHP 14,326 PHP 5,978
      • STL 6:03 PM
        13h 22m
        1 stop
        IAD 8:25 AM
        St. Louis - Washington D.C. | Tue, Jun 9 | Frontier Airlines
        PHP 6,050
        57% off
        PHP 14,326 PHP 6,050
      • STL 10:19 AM
        5h 12m
        1 stop
        IAD 4:31 PM
        St. Louis - Washington D.C. | Wed, May 27 | Delta Air Lines
        PHP 6,413
        55% off
        PHP 14,326 PHP 6,413
      • STL 6:04 PM
        3h 52m
        1 stop
        IAD 10:56 PM
        St. Louis - Washington D.C. | Tue, May 26 | Delta Air Lines
        PHP 6,440
        55% off
        PHP 14,326 PHP 6,440
      • STL 5:27 PM
        4h 42m
        1 stop
        IAD 11:09 PM
        St. Louis - Washington D.C. | Wed, Jun 3 | Frontier Airlines
        PHP 11,747
        18% off
        PHP 14,326 PHP 11,747
      • STL 1:00 PM
        17h 25m
        1 stop
        WAS 2:00 PM
        St. Louis - Washington D.C. | Sun, May 17 | Normal Airline
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Displayed flight fares from St. Louis Lambert International Airport to Dulles International Airport are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Selected Airlines from St. Louis Lambert International Airport to Dulles International 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.

Frontier Airlines
From PHP 4,599
Delta Air Lines
From PHP 6,413
American Airlines
From PHP 7,937
United Airlines
From PHP 8,953

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Flight Schedule from St. Louis Lambert International Airport to Dulles International 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. DL2822

    St. Louis Lambert International Airport

    5:45 PM

    STL

    1h 35m

    Nonstop

    8:20 PM

    DTW

    S M T W T F S
    Search

  2. DL3988

    Detroit Metropolitan Wayne County Airport

    9:25 PM

    DTW

    1h 31m

    Nonstop

    10:56 PM

    IAD

    S M T W T F S

  3. AA2943

    St. Louis Lambert International Airport

    6:12 PM

    STL

    2h 3m

    Nonstop

    9:15 PM

    CLT

    S M T - - F S
    Search

  4. AA2253

    Charlotte Douglas International Airport

    10:34 PM

    CLT

    1h 25m

    Nonstop

    11:59 PM

    IAD

    S M T - - F S

  5. F92646

    St. Louis Lambert International Airport

    6:55 PM

    STL

    1h 50m

    Nonstop

    9:45 PM

    ATL

    S - T - - F S
    Search

  6. F93692

    Hartsfield-Jackson Atlanta International Airport

    9:16 PM

    ATL

    1h 53m

    Nonstop

    11:09 PM

    IAD

    S M T W T F S

  7. DL1524

    St. Louis Lambert International Airport

    6:00 AM

    STL

    1h 40m

    Nonstop

    8:40 AM

    ATL

    S M T W T F S
    Search

  8. DL1444

    Hartsfield-Jackson Atlanta International Airport

    10:12 AM

    ATL

    1h 47m

    Nonstop

    11:59 AM

    IAD

    S M T W T F S

  9. DL1400

    St. Louis Lambert International Airport

    11:51 AM

    STL

    1h 39m

    Nonstop

    2:30 PM

    ATL

    S M T W T F S
    Search

  10. DL1695

    Hartsfield-Jackson Atlanta International Airport

    2:55 PM

    ATL

    1h 41m

    Nonstop

    4:36 PM

    IAD

    S M T W T - S

  11. AA2731

    St. Louis Lambert International Airport

    6:12 PM

    STL

    1h 57m

    Nonstop

    9:09 PM

    CLT

    - - - W T - -
    Search

  12. AA1450

    Charlotte Douglas International Airport

    6:04 PM

    CLT

    1h 30m

    Nonstop

    7:34 PM

    IAD

    - - - W T - -

  13. F94474

    St. Louis Lambert International Airport

    6:33 PM

    STL

    1h 50m

    Nonstop

    9:23 PM

    ATL

    - M - W T - -
    Search

  14. F93692

    Hartsfield-Jackson Atlanta International Airport

    9:16 PM

    ATL

    1h 53m

    Nonstop

    11:09 PM

    IAD

    S M T W T F S

  15. DL2868

    St. Louis Lambert International Airport

    10:45 AM

    STL

    1h 30m

    Nonstop

    1:15 PM

    DTW

    S M T W T F S
    Search

  16. DL1787

    Detroit Metropolitan Wayne County Airport

    3:04 PM

    DTW

    1h 33m

    Nonstop

    4:37 PM

    IAD

    S M T W T F S

  17. DL1485

    St. Louis Lambert International Airport

    3:13 PM

    STL

    1h 39m

    Nonstop

    5:52 PM

    ATL

    S M T W T F S
    Search

  18. DL2549

    Hartsfield-Jackson Atlanta International Airport

    10:25 PM

    ATL

    1h 40m

    Nonstop

    12:05 AM

    IAD

    S M T W T F S

  19. DL1524

    St. Louis Lambert International Airport

    6:00 AM

    STL

    1h 40m

    Nonstop

    8:40 AM

    ATL

    S M T W T F S
    Search

  20. DL2135

    Hartsfield-Jackson Atlanta International Airport

    1:00 PM

    ATL

    1h 41m

    Nonstop

    2:41 PM

    IAD

    S M T W T F S
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St. Louis Lambert International Airport to Dulles International Airport Flights Info

Flight distance1,119.28 km
Cheapest one-way ticket pricePHP 5,642
Cheapest return ticket pricePHP 12,681

FAQs for St. Louis Lambert International Airport to Dulles International Airport Flights

  • How long is a flight from St. Louis Lambert International Airport to Dulles International Airport?

    It takes around 2 hours 12 minutes to fly from St. Louis Lambert International Airport (stl) to Dulles International Airport (iad).
  • There are around 2 daily flights from St. Louis Lambert International Airport (STL) to Dulles International Airport (IAD).
  • Tickets cost around PHP 25,552 in June, making it the cheapest month to book. St. Louis Lambert International Airport (STL) to Dulles International Airport (IAD) is a popular route, so don't forget to book your tickets in advance.
  • The route from St. Louis Lambert International Airport (STL) to Dulles International Airport (IAD) is quite popular. Without considering departure times or holidays, tickets cost around PHP 25,914 in May, the most expensive month to book this route.
  • The earliest flight departs from St. Louis Lambert International Airport (STL) at 08:05 and arrives in Dulles International Airport (IAD) at 11:15.
  • The latest flight departs from St. Louis Lambert International Airport (STL) at 17:20 and arrives in Dulles International Airport (IAD) at 00:15.
  • United Airlines is a very popular airline operating an average of 626 flights per month.

Popular Destinations

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

Book with no extra fees

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.