Trip.com
>
Flights
>
Flights to United States
>
Flights to Missouri
>
Flights to St. Louis
>
Washington D.C. to St. Louis flight
>
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 PHP 2,752 and round-trip from PHP 12,364. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        IAD 8:40 AM
        2h 32m
        Nonstop
        STL 10:12 AM
        Washington D.C. - St. Louis | Tue, Nov 3 | United Airlines
        STL 7:00 AM
        2h 8m
        Nonstop
        DCA 10:08 AM
        St. Louis - Washington D.C. | Tue, Nov 10 | American Airlines
        PHP 21,133 PHP 30,569
        31% off
        31% off
        PHP 30,569 PHP 21,133
      • IAD 8:20 AM
        2h 21m
        Nonstop
        STL 9:41 AM
        Washington D.C. - St. Louis | Wed, Oct 7 | United Airlines
        STL 7:50 PM
        2h
        Nonstop
        DCA 10:50 PM
        St. Louis - Washington D.C. | Mon, Oct 12 |
        PHP 24,455 PHP 30,569
        20% off
        20% off
        PHP 30,569 PHP 24,455
      • IAD 6:00 AM
        30h 17m
        1 stop
        STL 11:17 AM
        Washington D.C. - St. Louis | Sun, Oct 4 | Frontier Airlines
        STL 2:29 PM
        8h 41m
        1 stop
        IAD 12:10 AM
        St. Louis - Washington D.C. | Thu, Oct 8 | Frontier Airlines
        PHP 12,364 PHP 30,569
        60% off
        60% off
        PHP 30,569 PHP 12,364
      • IAD 6:00 AM
        5h 51m
        1 stop
        STL 10:51 AM
        Washington D.C. - St. Louis | Wed, Nov 4 | Delta Air Lines
        STL 10:35 AM
        6h 1m
        1 stop
        IAD 5:36 PM
        St. Louis - Washington D.C. | Wed, Nov 11 | Frontier Airlines
        PHP 12,654
        59% off
        PHP 30,569 PHP 12,654
      • IAD 10:07 AM
        4h 13m
        1 stop
        STL 1:20 PM
        Washington D.C. - St. Louis | Thu, Oct 8 | Delta Air Lines
        STL 6:00 PM
        4h 11m
        1 stop
        IAD 11:11 PM
        St. Louis - Washington D.C. | Tue, Oct 13 | Delta Air Lines
        PHP 13,393
        56% off
        PHP 30,569 PHP 13,393
      • IAD 11:15 AM
        4h 34m
        1 stop
        STL 2:49 PM
        Washington D.C. - St. Louis | Sun, Oct 4 | Delta Air Lines
        STL 2:29 PM
        8h 41m
        1 stop
        IAD 12:10 AM
        St. Louis - Washington D.C. | Thu, Oct 8 | Frontier Airlines
        PHP 13,852
        55% off
        PHP 30,569 PHP 13,852
      • IAD 7:50 AM
        6h 20m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Sat, Oct 3 | Frontier Airlines
        STL 12:17 PM
        17h 3m
        1 stop
        IAD 6:20 AM
        St. Louis - Washington D.C. | Wed, Oct 7 | Frontier Airlines
        PHP 14,582
        52% off
        PHP 30,569 PHP 14,582
      • IAD 10:15 AM
        6h 28m
        1 stop
        STL 3:43 PM
        Washington D.C. - St. Louis | Wed, Nov 4 | United Airlines
        STL 10:35 AM
        6h 1m
        1 stop
        IAD 5:36 PM
        St. Louis - Washington D.C. | Wed, Nov 11 | Frontier Airlines
        PHP 14,881
        51% off
        PHP 30,569 PHP 14,881
      • IAD 12:30 PM
        6h
        1 stop
        STL 5:30 PM
        Washington D.C. - St. Louis | Sun, Oct 4 | American Airlines
        STL 2:29 PM
        8h 41m
        1 stop
        IAD 12:10 AM
        St. Louis - Washington D.C. | Thu, Oct 8 | Frontier Airlines
        PHP 15,134
        50% off
        PHP 30,569 PHP 15,134
      • IAD 11:12 AM
        6h 22m
        1 stop
        STL 4:34 PM
        Washington D.C. - St. Louis | Sat, Sep 26 | Frontier Airlines
        STL 2:29 PM
        8h 41m
        1 stop
        IAD 12:10 AM
        St. Louis - Washington D.C. | Thu, Oct 1 | Frontier Airlines
        PHP 15,134
        50% off
        PHP 30,569 PHP 15,134
      • IAD 6:00 AM
        5h 51m
        1 stop
        STL 10:51 AM
        Washington D.C. - St. Louis | Fri, Oct 23 | Delta Air Lines
        STL 4:30 PM
        16h 47m
        1 stop
        IAD 10:17 AM
        St. Louis - Washington D.C. | Mon, Oct 26 | Frontier Airlines
        PHP 15,705
        49% off
        PHP 30,569 PHP 15,705
      • IAD 8:20 AM
        4h 53m
        1 stop
        STL 12:13 PM
        Washington D.C. - St. Louis | Thu, Oct 8 | United Airlines
        STL 7:50 PM
        2h
        Nonstop
        DCA 10:50 PM
        St. Louis - Washington D.C. | Tue, Oct 13 |
        PHP 15,817
        48% off
        PHP 30,569 PHP 15,817
      • IAD 8:20 AM
        4h 54m
        1 stop
        STL 12:14 PM
        Washington D.C. - St. Louis | Sun, Oct 4 | United Airlines
        STL 2:29 PM
        8h 41m
        1 stop
        IAD 12:10 AM
        St. Louis - Washington D.C. | Thu, Oct 8 | Frontier Airlines
        PHP 16,042
        48% off
        PHP 30,569 PHP 16,042
      • IAD 7:50 AM
        6h 20m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Thu, Oct 1 | Frontier Airlines
        STL 12:17 PM
        17h 3m
        1 stop
        IAD 6:20 AM
        St. Louis - Washington D.C. | Sun, Oct 4 | Frontier Airlines
        PHP 16,463
        46% off
        PHP 30,569 PHP 16,463
      • WAS 1:00 PM
        17h 25m
        1 stop
        STL 2:00 PM
        Washington D.C. - St. Louis | Thu, Sep 24 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        WAS 4:00 PM
        St. Louis - Washington D.C. | Sat, Sep 26 | Normal Airline
        Find more flights
        Find more flights
      • Cheapest nonstop
        IAD 8:40 AM
        2h 32m
        Nonstop
        STL 10:12 AM
        Washington D.C. - St. Louis | Fri, Oct 30 | United Airlines
        PHP 9,986 PHP 16,999
        41% off
        41% off
        PHP 16,999 PHP 9,986
      • IAD 8:40 AM
        2h 32m
        Nonstop
        STL 10:12 AM
        Washington D.C. - St. Louis | Sun, Nov 15 | United Airlines
        PHP 10,080 PHP 16,999
        41% off
        41% off
        PHP 16,999 PHP 10,080
      • IAD 9:06 PM
        21h 34m
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Wed, Oct 21 | Frontier Airlines
        PHP 2,752 PHP 16,999
        84% off
        84% off
        PHP 16,999 PHP 2,752
      • IAD 9:06 PM
        21h 34m
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Wed, Oct 28 | Frontier Airlines
        PHP 2,752
        84% off
        PHP 16,999 PHP 2,752
      • IAD 7:50 AM
        10h 50m
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Thu, Oct 22 | Frontier Airlines
        PHP 2,761
        84% off
        PHP 16,999 PHP 2,761
      • IAD 8:05 AM
        10h 35m
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Thu, Nov 19 | Frontier Airlines
        PHP 2,789
        84% off
        PHP 16,999 PHP 2,789
      • IAD 7:50 AM
        6h 20m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Thu, Oct 8 | Frontier Airlines
        PHP 3,398
        80% off
        PHP 16,999 PHP 3,398
      • IAD 7:50 AM
        10h 50m
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Thu, Oct 15 | Frontier Airlines
        PHP 3,735
        78% off
        PHP 16,999 PHP 3,735
      • IAD 9:04 PM
        17h 6m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Wed, Oct 7 | Frontier Airlines
        PHP 3,866
        77% off
        PHP 16,999 PHP 3,866
      • IAD 9:06 PM
        21h 34m
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Wed, Oct 14 | Frontier Airlines
        PHP 3,866
        77% off
        PHP 16,999 PHP 3,866
      • IAD 7:50 AM
        6h 20m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Tue, Oct 6 | Frontier Airlines
        PHP 4,221
        75% off
        PHP 16,999 PHP 4,221
      • IAD 9:04 PM
        17h 6m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Fri, Oct 2 | Frontier Airlines
        PHP 4,661
        73% off
        PHP 16,999 PHP 4,661
      • IAD 7:40 AM
        11h
        1 stop
        STL 5:40 PM
        Washington D.C. - St. Louis | Sat, Oct 31 | Frontier Airlines
        PHP 4,745
        72% off
        PHP 16,999 PHP 4,745
      • IAD 7:50 AM
        6h 20m
        1 stop
        STL 1:10 PM
        Washington D.C. - St. Louis | Tue, Sep 29 | Frontier Airlines
        PHP 13,599
        20% off
        PHP 16,999 PHP 13,599
      • WAS 1:00 PM
        17h 25m
        1 stop
        STL 2:00 PM
        Washington D.C. - St. Louis | Thu, Sep 24 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Dulles International Airport to St. Louis Lambert International Airport 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 PHP 2,752) among 4 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From PHP 2,752
Delta Air Lines
From PHP 6,168
American Airlines
From PHP 7,871
United Airlines
From PHP 15,957

Find more flights and airlines

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. DL2127

    Dulles International Airport

    6:00 AM

    IAD

    1h 54m

    Nonstop

    7:54 AM

    ATL

    S M T W T F S
    Search

  2. DL1400

    Hartsfield–Jackson Atlanta International Airport

    10:00 AM

    ATL

    1h 48m

    Nonstop

    10:48 AM

    STL

    S M T W T F S

  3. DL1444

    Dulles International Airport

    1:00 PM

    IAD

    1h 57m

    Nonstop

    2:57 PM

    ATL

    S M T W T - S
    Search

  4. F94473

    Hartsfield–Jackson Atlanta International Airport

    12:25 PM

    ATL

    1h 45m

    Nonstop

    1:10 PM

    STL

    S - T - T - -

  5. F94707

    Dulles International Airport

    7:50 AM

    IAD

    2h 3m

    Nonstop

    9:53 AM

    ATL

    S M T W T F S
    Search

  6. F94473

    Hartsfield–Jackson Atlanta International Airport

    12:25 PM

    ATL

    1h 45m

    Nonstop

    1:10 PM

    STL

    S - T - T - -

  7. F94355

    Dulles International Airport

    11:12 AM

    IAD

    2h 22m

    Nonstop

    1:34 PM

    MCO

    S M T W T F S
    Search

  8. F92635

    Orlando Intl. Airport

    3:00 PM

    MCO

    2h 34m

    Nonstop

    4:34 PM

    STL

    S - - W T - S

  9. F94707

    Dulles International Airport

    7:50 AM

    IAD

    2h 3m

    Nonstop

    9:53 AM

    ATL

    S M T W T F S
    Search

  10. DL1403

    Hartsfield–Jackson Atlanta International Airport

    10:55 PM

    ATL

    1h 44m

    Nonstop

    11:39 PM

    STL

    S M T W T F S

  11. F94409

    Dulles International Airport

    8:39 PM

    IAD

    2h 11m

    Nonstop

    10:50 PM

    ATL

    S M T W T F S
    Search

  12. F94473

    Hartsfield–Jackson Atlanta International Airport

    12:25 PM

    ATL

    1h 45m

    Nonstop

    1:10 PM

    STL

    S - T - T - -

  13. F94707

    Dulles International Airport

    7:50 AM

    IAD

    2h 3m

    Nonstop

    9:53 AM

    ATL

    S M T W T F S
    Search

  14. DL1571

    Hartsfield–Jackson Atlanta International Airport

    7:25 AM

    ATL

    1h 47m

    Nonstop

    8:12 AM

    STL

    S M T W T - S

  15. F94277

    Dulles International Airport

    6:30 AM

    IAD

    4h 57m

    Nonstop

    8:27 AM

    LAS

    S M T W T F S
    Search

  16. F93108

    Harry Reid Intl. Airport

    8:40 AM

    LAS

    3h 12m

    Nonstop

    1:52 PM

    STL

    S M T W T - S
Find more flights and airlines

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 distance1,119.28 km
Cheapest one-way ticket pricePHP 2,752
Cheapest return ticket pricePHP 12,364

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 46 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 08:25, and the last departs at 17:45, 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 PHP 24,876 in October, 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 PHP 2,752, and round-trip fares start from PHP 12,364. The current lowest fare is a Frontier Airlines flight departing on Wed, Oct 21; 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 53 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 PHP 11,167. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to St. Louis Lambert International Airport operates around 10 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.