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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 AED 162 and round-trip from AED 743. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 8:40 AM
      2h 32m
      STL 10:12 AM
      Washington D.C. - St. Louis | Sun, Nov 15 | United Airlines
      STL 7:00 AM
      2h 8m
      DCA 10:08 AM
      St. Louis - Washington D.C. | Sun, Nov 22 | American Airlines
      AED 1,240 AED 1,772
      30% off
      30% off
      AED 1,772 AED 1,240
    • IAD 8:20 AM
      2h 21m
      STL 9:41 AM
      Washington D.C. - St. Louis | Mon, Oct 19 | United Airlines
      STL 7:50 PM
      2h
      DCA 10:50 PM
      St. Louis - Washington D.C. | Sat, Oct 24 |
      AED 1,435 AED 1,772
      19% off
      19% off
      AED 1,772 AED 1,435
    • IAD 6:00 AM
      5h 51m
      STL 10:51 AM
      Washington D.C. - St. Louis | Sun, Nov 15 | Delta Air Lines
      STL 10:35 AM
      6h 1m
      IAD 5:36 PM
      St. Louis - Washington D.C. | Sun, Nov 22 | Frontier Airlines
      AED 743 AED 1,772
      57% off
      57% off
      AED 1,772 AED 743
    • IAD 10:07 AM
      4h 13m
      STL 1:20 PM
      Washington D.C. - St. Louis | Mon, Oct 19 | Delta Air Lines
      STL 6:00 PM
      4h 11m
      IAD 11:11 PM
      St. Louis - Washington D.C. | Sat, Oct 24 | Delta Air Lines
      AED 786
      56% off
      AED 1,772 AED 786
    • IAD 10:15 AM
      6h 28m
      STL 3:43 PM
      Washington D.C. - St. Louis | Sun, Nov 15 | United Airlines
      STL 10:35 AM
      6h 1m
      IAD 5:36 PM
      St. Louis - Washington D.C. | Sun, Nov 22 | Frontier Airlines
      AED 873
      51% off
      AED 1,772 AED 873
    • IAD 6:00 AM
      5h 51m
      STL 10:51 AM
      Washington D.C. - St. Louis | Tue, Nov 3 | Delta Air Lines
      STL 4:30 PM
      16h 47m
      IAD 10:17 AM
      St. Louis - Washington D.C. | Fri, Nov 6 | Frontier Airlines
      AED 922
      48% off
      AED 1,772 AED 922
    • IAD 8:20 AM
      4h 53m
      STL 12:13 PM
      Washington D.C. - St. Louis | Mon, Oct 19 | United Airlines
      STL 7:50 PM
      2h
      DCA 10:50 PM
      St. Louis - Washington D.C. | Sat, Oct 24 |
      AED 928
      48% off
      AED 1,772 AED 928
    • IAD 7:37 PM
      5h 19m
      STL 11:56 PM
      Washington D.C. - St. Louis | Tue, Nov 24 | Delta Air Lines
      STL 4:26 PM
      16h 55m
      IAD 10:21 AM
      St. Louis - Washington D.C. | Fri, Nov 27 | Frontier Airlines
      AED 1,003
      43% off
      AED 1,772 AED 1,003
    • IAD 11:25 AM
      6h 49m
      STL 5:14 PM
      Washington D.C. - St. Louis | Mon, Nov 23 | Delta Air Lines
      STL 4:26 PM
      16h 55m
      IAD 10:21 AM
      St. Louis - Washington D.C. | Fri, Nov 27 | Frontier Airlines
      AED 1,003
      43% off
      AED 1,772 AED 1,003
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Sun, Oct 18 | Normal Airline
      STL 3:00 PM
      6h
      Nonstop
      WAS 4:00 PM
      St. Louis - Washington D.C. | Tue, Oct 20 | Normal Airline
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    • Cheapest
      IAD 9:06 PM
      21h 34m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Thu, Oct 29 | Frontier Airlines
      AED 162 AED 775
      79% off
      79% off
      AED 775 AED 162
    • IAD 8:05 AM
      10h 35m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Fri, Nov 13 | Frontier Airlines
      AED 164 AED 775
      79% off
      79% off
      AED 775 AED 164
    • IAD 9:06 PM
      21h 34m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Thu, Oct 22 | Frontier Airlines
      AED 165 AED 775
      79% off
      79% off
      AED 775 AED 165
    • IAD 7:48 AM
      10h 54m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Fri, Nov 20 | Frontier Airlines
      AED 179
      77% off
      AED 775 AED 179
    • IAD 9:06 PM
      21h 34m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Thu, Nov 19 | Frontier Airlines
      AED 179
      77% off
      AED 775 AED 179
    • IAD 10:33 PM
      13h 44m
      1 stop
      STL 11:17 AM
      Washington D.C. - St. Louis | Thu, Dec 3 | Frontier Airlines
      AED 179
      77% off
      AED 775 AED 179
    • IAD 6:07 PM
      24h 35m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Thu, Nov 12 | Frontier Airlines
      AED 218
      72% off
      AED 775 AED 218
    • IAD 6:50 AM
      11h 50m
      1 stop
      STL 5:40 PM
      Washington D.C. - St. Louis | Wed, Nov 25 | Frontier Airlines
      AED 220
      72% off
      AED 775 AED 220
    • IAD 9:06 PM
      21h 36m
      1 stop
      STL 5:42 PM
      Washington D.C. - St. Louis | Sat, Nov 14 | Frontier Airlines
      AED 255
      67% off
      AED 775 AED 255
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Sun, Oct 18 | Normal Airline
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    • IAD 6:12 PM
      4h 47m
      1 stop
      STL 9:59 PM
      Washington D.C. - St. Louis | Wed, Nov 4 | Delta Air Lines
      AED 450 AED 577
      22% off
      22% off
      AED 577 AED 450
    • IAD 3:47 PM
      4h 43m
      1 stop
      STL 7:30 PM
      Washington D.C. - St. Louis | Tue, Dec 29 | American Airlines
      AED 453 AED 577
      21% off
      21% off
      AED 577 AED 453
    • IAD 6:15 AM
      4h 17m
      1 stop
      STL 9:32 AM
      Washington D.C. - St. Louis | Tue, Oct 20 | American Airlines
      AED 467 AED 577
      19% off
      19% off
      AED 577 AED 467
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Sun, Oct 18 | Normal Airline
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    • IAD 6:15 AM
      4h 17m
      1 stop
      STL 9:32 AM
      Washington D.C. - St. Louis | Tue, Oct 20 | American Airlines
      AED 467 AED 577
      19% off
      19% off
      AED 577 AED 467
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Sun, Oct 18 | Normal Airline
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    • IAD 8:20 AM
      2h 21m
      Nonstop
      STL 9:41 AM
      Washington D.C. - St. Louis | Mon, Oct 19 | United Airlines
      AED 2,542 AED 3,139
      19% off
      19% off
      AED 3,139 AED 2,542
    • IAD 8:20 AM
      2h 21m
      Nonstop
      STL 9:41 AM
      Washington D.C. - St. Louis | Sun, Oct 18 | United Airlines
      AED 1,324 AED 3,139
      57% off
      57% off
      AED 3,139 AED 1,324
    • IAD 8:20 AM
      2h 21m
      Nonstop
      STL 9:41 AM
      Washington D.C. - St. Louis | Tue, Oct 20 | United Airlines
      AED 1,428 AED 3,139
      55% off
      55% off
      AED 3,139 AED 1,428
    • IAD 8:40 AM
      2h 32m
      Nonstop
      STL 10:12 AM
      Washington D.C. - St. Louis | Sun, Nov 29 | United Airlines
      AED 1,725
      45% off
      AED 3,139 AED 1,725
    • IAD 8:32 AM
      2h 33m
      Nonstop
      STL 10:05 AM
      Washington D.C. - St. Louis | Tue, Dec 29 | United Airlines
      AED 1,409
      55% off
      AED 3,139 AED 1,409
    • WAS 1:00 PM
      17h 25m
      1 stop
      STL 2:00 PM
      Washington D.C. - St. Louis | Sun, Oct 18 | 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 AED 162) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From AED 162
Delta Air Lines
From AED 341
American Airlines
From AED 472
United Airlines
From AED 554

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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. DL1354

    Dulles International Airport

    7:00 AM

    IAD

    2h

    Nonstop

    9:00 AM

    ATL

    S M T W T F S
    Search

  2. DL1102

    Hartsfield–Jackson Atlanta International Airport

    12:40 PM

    ATL

    1h 40m

    Nonstop

    1:20 PM

    STL

    S M T W T F S

  3. DL1657

    Dulles International Airport

    6:12 PM

    IAD

    2h

    Nonstop

    8:12 PM

    ATL

    - M T - - F -
    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. F94707

    Dulles International Airport

    7:54 AM

    IAD

    2h 4m

    Nonstop

    9:58 AM

    ATL

    S M T W T F S
    Search

  6. DL1102

    Hartsfield–Jackson Atlanta International Airport

    12:40 PM

    ATL

    1h 40m

    Nonstop

    1:20 PM

    STL

    S M T W T F S

  7. DL1324

    Dulles International Airport

    10:14 AM

    IAD

    1h 50m

    Nonstop

    12:04 PM

    ATL

    S M T W T F S
    Search

  8. F94473

    Hartsfield–Jackson Atlanta International Airport

    9:57 AM

    ATL

    1h 56m

    Nonstop

    10:53 AM

    STL

    S - T - T - -

  9. F94707

    Dulles International Airport

    7:54 AM

    IAD

    2h 4m

    Nonstop

    9:58 AM

    ATL

    S M T W T F S
    Search

  10. F94473

    Hartsfield–Jackson Atlanta International Airport

    9:57 AM

    ATL

    1h 56m

    Nonstop

    10:53 AM

    STL

    S - T - T - -

  11. F94355

    Dulles International Airport

    8:33 PM

    IAD

    2h 29m

    Nonstop

    11:02 PM

    MCO

    - M T W - F S
    Search

  12. F92635

    Orlando Intl. Airport

    10:22 PM

    MCO

    2h 42m

    Nonstop

    12:04 AM

    STL

    S - - W T F S

  13. F94409

    Dulles International Airport

    9:06 PM

    IAD

    2h 7m

    Nonstop

    11:13 PM

    ATL

    S M T W T F S
    Search

  14. DL1571

    Hartsfield–Jackson Atlanta International Airport

    9:00 AM

    ATL

    1h 42m

    Nonstop

    9:42 AM

    STL

    S M T W T F S

  15. F94409

    Dulles International Airport

    9:06 PM

    IAD

    2h 7m

    Nonstop

    11:13 PM

    ATL

    S M T W T F S
    Search

  16. F94473

    Hartsfield–Jackson Atlanta International Airport

    9:57 AM

    ATL

    1h 56m

    Nonstop

    10:53 AM

    STL

    S - T - T - -

  17. DL1657

    Dulles International Airport

    6:12 PM

    IAD

    2h

    Nonstop

    8:12 PM

    ATL

    - M T - - F -
    Search

  18. F94473

    Hartsfield–Jackson Atlanta International Airport

    9:57 AM

    ATL

    1h 56m

    Nonstop

    10:53 AM

    STL

    S - T - T - -
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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 AED 162
Cheapest return ticket price AED 743

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 47 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 08:20, and the last departs at 18:20, 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 AED 1,745 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 AED 162, and round-trip fares start from AED 743. The current lowest fare is a Frontier Airlines flight departing on Thu, Oct 29; 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 43 minutes, and around 13 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 AED 759. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to St. Louis Lambert International Airport operates around 13 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.

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.