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Dulles International Airport to St. Louis Lambert International Airport flight

Explore the cheapest one-way and round-trip flights from Dulles International Airport to St. Louis Lambert International Airport over the next 90 days, with one-way fares from TWD 1,539 and round-trip from TWD 6,668. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 8:35 AM
      2h 33m
      Nonstop
      STL 10:08 AM
      Washington D.C. - St. Louis | Sat, Jan 9 | United Airlines
      STL 8:05 AM
      2h
      Nonstop
      DCA 11:05 AM
      St. Louis - Washington D.C. | Wed, Jan 13 |
      TWD 11,481 TWD 15,084
      24% off
      24% off
      TWD 15,084 TWD 11,481
    • IAD 8:32 AM
      2h 33m
      Nonstop
      STL 10:05 AM
      Washington D.C. - St. Louis | Mon, Jan 4 | United Airlines
      STL 6:00 AM
      2h 12m
      Nonstop
      DCA 9:12 AM
      St. Louis - Washington D.C. | Mon, Jan 11 | American Airlines
      TWD 13,424 TWD 15,084
      11% off
      11% off
      TWD 15,084 TWD 13,424
    • IAD 6:00 AM
      5h 51m
      1 stop
      STL 10:51 AM
      Washington D.C. - St. Louis | Thu, Nov 19 | Delta Air Lines
      STL 10:35 AM
      6h 1m
      1 stop
      IAD 5:36 PM
      St. Louis - Washington D.C. | Thu, Nov 26 | Frontier Airlines
      TWD 6,668 TWD 15,084
      56% off
      56% off
      TWD 15,084 TWD 6,668
    • IAD 8:26 PM
      28h 46m
      1 stop
      STL 12:12 AM
      Washington D.C. - St. Louis | Wed, Dec 23 | Frontier Airlines
      STL 6:20 PM
      24h 11m
      1 stop
      IAD 7:31 PM
      St. Louis - Washington D.C. | Sat, Dec 26 | Frontier Airlines
      TWD 6,771
      55% off
      TWD 15,084 TWD 6,771
    • IAD 7:32 AM
      12h 7m
      1 stop
      STL 6:39 PM
      Washington D.C. - St. Louis | Sat, Dec 5 | Frontier Airlines
      STL 5:15 PM
      10h 55m
      1 stop
      IAD 5:10 AM
      St. Louis - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      TWD 6,924
      54% off
      TWD 15,084 TWD 6,924
    • IAD 7:39 PM
      5h 26m
      1 stop
      STL 12:05 AM
      Washington D.C. - St. Louis | Wed, Dec 23 | Delta Air Lines
      STL 6:20 PM
      24h 11m
      1 stop
      IAD 7:31 PM
      St. Louis - Washington D.C. | Sat, Dec 26 | Frontier Airlines
      TWD 7,536
      50% off
      TWD 15,084 TWD 7,536
    • IAD 10:15 AM
      6h 28m
      1 stop
      STL 3:43 PM
      Washington D.C. - St. Louis | Thu, Nov 19 | United Airlines
      STL 10:35 AM
      6h 1m
      1 stop
      IAD 5:36 PM
      St. Louis - Washington D.C. | Thu, Nov 26 | Frontier Airlines
      TWD 7,841
      48% off
      TWD 15,084 TWD 7,841
    • IAD 8:05 AM
      6h 18m
      1 stop
      STL 1:23 PM
      Washington D.C. - St. Louis | Sat, Dec 5 | Delta Air Lines
      STL 5:15 PM
      10h 55m
      1 stop
      IAD 5:10 AM
      St. Louis - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      TWD 8,315
      45% off
      TWD 15,084 TWD 8,315
    • IAD 5:16 PM
      4h 13m
      1 stop
      STL 8:29 PM
      Washington D.C. - St. Louis | Thu, Dec 3 | Delta Air Lines
      STL 5:15 PM
      10h 55m
      1 stop
      IAD 5:10 AM
      St. Louis - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      TWD 8,685
      42% off
      TWD 15,084 TWD 8,685
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Normal Airline
      STL 3:00 PM
      6h
      Nonstop
      WAS 4:00 PM
      St. Louis - Washington D.C. | Sun, Nov 15 | Normal Airline
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    • Cheapest
      IAD 7:48 AM
      10h 54m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Fri, Dec 4 | Frontier Airlines
      TWD 1,539 TWD 6,306
      76% off
      76% off
      TWD 6,306 TWD 1,539
    • IAD 10:33 PM
      13h 37m
      1 stop
      STL 11:10 AM
      Washington D.C. - St. Louis | Thu, Dec 17 | Frontier Airlines
      TWD 1,564 TWD 6,306
      75% off
      75% off
      TWD 6,306 TWD 1,564
    • IAD 9:06 PM
      21h 34m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Thu, Dec 3 | Frontier Airlines
      TWD 1,608 TWD 6,306
      75% off
      75% off
      TWD 6,306 TWD 1,608
    • IAD 12:31 PM
      23h 48m
      1 stop
      STL 11:19 AM
      Washington D.C. - St. Louis | Sat, Nov 28 | Frontier Airlines
      TWD 1,825
      71% off
      TWD 6,306 TWD 1,825
    • IAD 8:05 AM
      10h 35m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Fri, Nov 27 | Frontier Airlines
      TWD 2,091
      67% off
      TWD 6,306 TWD 2,091
    • IAD 8:05 AM
      10h 35m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Fri, Nov 20 | Frontier Airlines
      TWD 2,121
      66% off
      TWD 6,306 TWD 2,121
    • IAD 7:40 AM
      11h
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Sun, Nov 15 | Frontier Airlines
      TWD 2,501
      60% off
      TWD 6,306 TWD 2,501
    • IAD 7:32 AM
      11h 10m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Sun, Nov 29 | Frontier Airlines
      TWD 2,501
      60% off
      TWD 6,306 TWD 2,501
    • IAD 10:35 PM
      13h 42m
      1 stop
      STL 11:17 AM
      Washington D.C. - St. Louis | Sat, Dec 26 | Frontier Airlines
      TWD 2,501
      60% off
      TWD 6,306 TWD 2,501
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Normal Airline
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    • Cheapest nonstop
      IAD 8:30 AM
      2h 33m
      Nonstop
      STL 10:03 AM
      Washington D.C. - St. Louis | Fri, Dec 4 | United Airlines
      TWD 5,499 TWD 6,306
      13% off
      13% off
      TWD 6,306 TWD 5,499
    • IAD 8:30 AM
      2h 33m
      Nonstop
      STL 10:03 AM
      Washington D.C. - St. Louis | Mon, Dec 14 | United Airlines
      TWD 5,612 TWD 6,306
      11% off
      11% off
      TWD 6,306 TWD 5,612
    • IAD 5:55 PM
      2h 32m
      Nonstop
      STL 7:27 PM
      Washington D.C. - St. Louis | Wed, Jan 13 | United Airlines
      TWD 6,510 TWD 18,513
      65% off
      65% off
      TWD 18,513 TWD 6,510
    • IAD 5:55 PM
      2h 32m
      Nonstop
      STL 7:27 PM
      Washington D.C. - St. Louis | Fri, Jan 29 | United Airlines
      TWD 6,510
      65% off
      TWD 18,513 TWD 6,510
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sat, Nov 14 | United Airlines
      TWD 8,611
      53% off
      TWD 18,513 TWD 8,611
    • IAD 5:55 PM
      2h 35m
      Nonstop
      STL 7:30 PM
      Washington D.C. - St. Louis | Tue, Dec 1 | United Airlines
      TWD 9,380
      49% off
      TWD 18,513 TWD 9,380
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Thu, Nov 19 | United Airlines
      TWD 9,760
      47% off
      TWD 18,513 TWD 9,760
    • IAD 8:30 AM
      2h 33m
      Nonstop
      STL 10:03 AM
      Washington D.C. - St. Louis | Fri, Dec 11 | United Airlines
      TWD 10,213
      45% off
      TWD 18,513 TWD 10,213
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Wed, Nov 18 | United Airlines
      TWD 11,579
      37% off
      TWD 18,513 TWD 11,579
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Normal Airline
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    • Cheapest nonstop
      IAD 5:55 PM
      2h 35m
      Nonstop
      STL 7:30 PM
      Washington D.C. - St. Louis | Tue, Dec 1 | United Airlines
      TWD 9,380 TWD 18,513
      49% off
      49% off
      TWD 18,513 TWD 9,380
    • IAD 8:30 AM
      2h 33m
      Nonstop
      STL 10:03 AM
      Washington D.C. - St. Louis | Fri, Dec 11 | United Airlines
      TWD 10,213 TWD 18,513
      45% off
      45% off
      TWD 18,513 TWD 10,213
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Wed, Nov 18 | United Airlines
      TWD 11,579 TWD 18,513
      37% off
      37% off
      TWD 18,513 TWD 11,579
    • IAD 8:35 AM
      2h 33m
      Nonstop
      STL 10:08 AM
      Washington D.C. - St. Louis | Mon, Jan 11 | United Airlines
      TWD 13,468
      27% off
      TWD 18,513 TWD 13,468
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sun, Nov 15 | United Airlines
      TWD 16,476
      11% off
      TWD 18,513 TWD 16,476
    • IAD 7:37 PM
      4h 49m
      1 stop
      STL 11:26 PM
      Washington D.C. - St. Louis | Fri, Jan 29 | Delta Air Lines
      TWD 3,901
      79% off
      TWD 18,513 TWD 3,901
    • IAD 3:47 PM
      4h 43m
      1 stop
      STL 7:30 PM
      Washington D.C. - St. Louis | Tue, Dec 29 | American Airlines
      TWD 4,064
      78% off
      TWD 18,513 TWD 4,064
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Normal Airline
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    • Cheapest nonstop
      IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Wed, Nov 18 | United Airlines
      TWD 11,579 TWD 18,513
      37% off
      37% off
      TWD 18,513 TWD 11,579
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sun, Nov 15 | United Airlines
      TWD 16,476 TWD 18,513
      11% off
      11% off
      TWD 18,513 TWD 16,476
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Normal Airline
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    • IAD 5:55 PM
      2h 32m
      Nonstop
      STL 7:27 PM
      Washington D.C. - St. Louis | Wed, Jan 13 | United Airlines
      TWD 6,510 TWD 18,513
      65% off
      65% off
      TWD 18,513 TWD 6,510
    • IAD 5:55 PM
      2h 32m
      Nonstop
      STL 7:27 PM
      Washington D.C. - St. Louis | Fri, Jan 29 | United Airlines
      TWD 6,510 TWD 18,513
      65% off
      65% off
      TWD 18,513 TWD 6,510
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sat, Nov 14 | United Airlines
      TWD 8,611 TWD 18,513
      53% off
      53% off
      TWD 18,513 TWD 8,611
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Thu, Nov 19 | United Airlines
      TWD 9,760
      47% off
      TWD 18,513 TWD 9,760
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Wed, Nov 18 | United Airlines
      TWD 11,579
      37% off
      TWD 18,513 TWD 11,579
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sun, Nov 29 | United Airlines
      TWD 15,495
      16% off
      TWD 18,513 TWD 15,495
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sun, Nov 15 | United Airlines
      TWD 16,476
      11% off
      TWD 18,513 TWD 16,476
    • IAD 8:30 AM
      2h 33m
      Nonstop
      STL 10:03 AM
      Washington D.C. - St. Louis | Fri, Dec 4 | United Airlines
      TWD 5,499
      13% off
      TWD 6,306 TWD 5,499
    • IAD 8:30 AM
      2h 33m
      Nonstop
      STL 10:03 AM
      Washington D.C. - St. Louis | Mon, Dec 14 | United Airlines
      TWD 5,612
      11% off
      TWD 6,306 TWD 5,612
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Normal Airline
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Displayed flight fares from Washington D.C. to St. Louis 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 Dulles International Airport to St. Louis Lambert International Airport?

The cheapest airline flying from Dulles International Airport to St. Louis Lambert International Airport is Frontier Airlines (from TWD 1,593) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From TWD 1,593
Delta Air Lines
From TWD 3,576
American Airlines
From TWD 4,301
United Airlines
From TWD 4,868

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What is the flight schedule from Dulles International Airport to St. Louis Lambert International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. AA5222

    Dulles International Airport

    8:07 PM

    IAD

    1h 38m

    Nonstop

    9:45 PM

    CLT

    S M T W T F S
    Search

  2. AA2562

    Charlotte Douglas International Airport

    10:51 PM

    CLT

    2h 7m

    Nonstop

    11:58 PM

    STL

    S M T W T F S

  3. DL2902

    Dulles International Airport

    7:50 PM

    IAD

    2h

    Nonstop

    9:50 PM

    ATL

    S - - W T - S
    Search

  4. DL1403

    Hartsfield–Jackson Atlanta International Airport

    10:55 PM

    ATL

    1h 44m

    Nonstop

    11:39 PM

    STL

    S M T W T F S

  5. DL2327

    Dulles International Airport

    6:00 AM

    IAD

    1h 58m

    Nonstop

    7:58 AM

    ATL

    S M T W T F S
    Search

  6. DL1400

    Hartsfield–Jackson Atlanta International Airport

    10:25 AM

    ATL

    1h 51m

    Nonstop

    11:16 AM

    STL

    S M T W T F S

  7. DL1324

    Dulles International Airport

    10:11 AM

    IAD

    1h 53m

    Nonstop

    12:04 PM

    ATL

    S M T W T F S
    Search

  8. DL1485

    Hartsfield–Jackson Atlanta International Airport

    3:15 PM

    ATL

    1h 43m

    Nonstop

    3:58 PM

    STL

    S M T W T F S

  9. DL2135

    Dulles International Airport

    4:00 PM

    IAD

    1h 56m

    Nonstop

    5:56 PM

    ATL

    S M T W T F S
    Search

  10. DL2833

    Hartsfield–Jackson Atlanta International Airport

    8:05 PM

    ATL

    1h 44m

    Nonstop

    8:49 PM

    STL

    S M T W T F S

  11. DL1324

    Dulles International Airport

    10:11 AM

    IAD

    1h 53m

    Nonstop

    12:04 PM

    ATL

    S M T W T F S
    Search

  12. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:49 PM

    ATL

    1h 53m

    Nonstop

    5:42 PM

    STL

    S - T - T - -

  13. F94707

    Dulles International Airport

    7:48 AM

    IAD

    2h 24m

    Nonstop

    10:12 AM

    ATL

    S M T W T F S
    Search

  14. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:49 PM

    ATL

    1h 53m

    Nonstop

    5:42 PM

    STL

    S - T - T - -

  15. F94409

    Dulles International Airport

    8:21 PM

    IAD

    2h 18m

    Nonstop

    10:39 PM

    ATL

    S - T W T F S
    Search

  16. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:49 PM

    ATL

    1h 53m

    Nonstop

    5:42 PM

    STL

    S - T - T - -

  17. F91081

    Dulles International Airport

    6:07 PM

    IAD

    2h 20m

    Nonstop

    8:27 PM

    ATL

    - M - - - - -
    Search

  18. F94473

    Hartsfield–Jackson Atlanta International Airport

    4:49 PM

    ATL

    1h 53m

    Nonstop

    5:42 PM

    STL

    S - T - T - -

  19. F94355

    Dulles International Airport

    11:16 AM

    IAD

    2h 33m

    Nonstop

    1:49 PM

    MCO

    S M T W T F S
    Search

  20. F92635

    Orlando Intl. Airport

    10:38 PM

    MCO

    2h 30m

    Nonstop

    12:08 AM

    STL

    S - - W T F S
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About Dulles International Airport and St. Louis Lambert International Airport

Learn about Dulles International Airport (IAD) and St. Louis Lambert International Airport (STL) — including location, terminals, transportation, and travel tips.

Flight distance 1,119.28 km
Cheapest one-way ticket price TWD 1,539
Cheapest return ticket price TWD 6,668

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

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

    Dulles International Airport to St. Louis Lambert International Airport takes about 1 hour 48 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 2 daily flights from Dulles International Airport (IAD) to St. Louis Lambert International Airport (STL).
  • The earliest flight from Dulles International Airport to St. Louis Lambert International Airport departs at 08:40, and the last departs at 17:55, with about 2 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Dulles International Airport (IAD) to St. Louis Lambert International Airport (STL) is quite popular. Without considering departure times or holidays, tickets cost around TWD 13,813 in November, the most expensive month to book this route.
  • The earliest flight departs from Dulles International Airport (IAD) at 08:40 and arrives in St. Louis Lambert International Airport (STL) at 10:02.
  • The latest flight departs from Dulles International Airport (IAD) at 17:45 and arrives in St. Louis Lambert International Airport (STL) at 19:09.
    • The distance from St. Louis Lambert International Airport to downtown is about 20 km. It takes about 40 minutes by taxi.
  • United Airlines is a very popular airline operating an average of 712 flights per month.
  • One-way flights from Dulles International Airport to St. Louis Lambert International Airport currently start from TWD 1,539, and round-trip fares start from TWD 6,668. The current lowest fare is a Frontier Airlines flight departing on Fri, Dec 4; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from Dulles International Airport to St. Louis Lambert International Airport, with an average flight time of 1 hour 44 minutes, and around 14 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 Dulles International Airport to St. Louis Lambert International Airport is TWD 7,931. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to St. Louis Lambert International Airport operates around 14 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dulles International Airport and St. Louis Lambert International 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.

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.