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Dulles International Airport to Denver International Airport flight

Explore the cheapest one-way and round-trip flights from Dulles International Airport to Denver International Airport over the next 90 days, with one-way fares from $58 and round-trip from $117. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      IAD 10:10 PM
      4h 9m
      Nonstop
      DEN 12:19 AM
      Washington D.C. - Denver | Sun, Nov 1 | United Airlines
      DEN 5:55 PM
      3h 20m
      Nonstop
      IAD 11:15 PM
      Denver - Washington D.C. | Mon, Nov 2 | United Airlines
      $399 $449
      11% off
      11% off
      $449 $399
    • IAD 12:40 PM
      4h 8m
      Nonstop
      DEN 2:48 PM
      Washington D.C. - Denver | Thu, Nov 5 | United Airlines
      DEN 6:00 AM
      3h 19m
      Nonstop
      IAD 11:19 AM
      Denver - Washington D.C. | Mon, Nov 9 | United Airlines
      $399 $449
      11% off
      11% off
      $449 $399
    • IAD 10:35 PM
      9h 54m
      1 stop
      DEN 6:29 AM
      Washington D.C. - Denver | Tue, Dec 8 | Frontier Airlines
      DEN 10:18 AM
      7h 52m
      1 stop
      IAD 8:10 PM
      Denver - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      $117 $449
      74% off
      74% off
      $449 $117
    • IAD 8:57 PM
      13h 53m
      1 stop
      DEN 8:50 AM
      Washington D.C. - Denver | Thu, Dec 3 | Frontier Airlines
      DEN 7:10 AM
      11h
      1 stop
      IAD 8:10 PM
      Denver - Washington D.C. | Sun, Dec 6 | Frontier Airlines
      $122
      73% off
      $449 $122
    • IAD 8:55 PM
      13h 55m
      1 stop
      DEN 8:50 AM
      Washington D.C. - Denver | Wed, Dec 9 | Frontier Airlines
      DEN 7:10 AM
      11h
      1 stop
      IAD 8:10 PM
      Denver - Washington D.C. | Fri, Dec 11 | Frontier Airlines
      $126
      72% off
      $449 $126
    • IAD 8:57 PM
      13h 53m
      1 stop
      DEN 8:50 AM
      Washington D.C. - Denver | Fri, Dec 4 | Frontier Airlines
      DEN 10:26 AM
      7h 44m
      1 stop
      IAD 8:10 PM
      Denver - Washington D.C. | Tue, Dec 8 | Frontier Airlines
      $131
      71% off
      $449 $131
    • IAD 9:06 PM
      13h 16m
      1 stop
      DEN 8:22 AM
      Washington D.C. - Denver | Tue, Nov 10 | Frontier Airlines
      DEN 9:20 PM
      12h 16m
      1 stop
      IAD 11:36 AM
      Denver - Washington D.C. | Thu, Nov 12 | Frontier Airlines
      $134
      70% off
      $449 $134
    • IAD 8:55 PM
      13h 55m
      1 stop
      DEN 8:50 AM
      Washington D.C. - Denver | Mon, Dec 7 | Frontier Airlines
      DEN 10:18 AM
      7h 52m
      1 stop
      IAD 8:10 PM
      Denver - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      $139
      69% off
      $449 $139
    • IAD 10:33 PM
      9h 56m
      1 stop
      DEN 6:29 AM
      Washington D.C. - Denver | Sat, Dec 5 | Frontier Airlines
      DEN 10:26 AM
      7h 45m
      1 stop
      IAD 8:11 PM
      Denver - Washington D.C. | Tue, Dec 8 | Frontier Airlines
      $143
      68% off
      $449 $143
    • WAS 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      Washington D.C. - Denver | Sat, Oct 31 | Normal Airline
      DEN 3:00 PM
      6h
      Nonstop
      WAS 4:00 PM
      Denver - Washington D.C. | Mon, Nov 2 | Normal Airline
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    • Cheapest
      IAD 10:35 PM
      9h 54m
      1 stop
      DEN 6:29 AM
      Washington D.C. - Denver | Wed, Dec 9 | Frontier Airlines
      $58 $276
      79% off
      79% off
      $276 $58
    • IAD 12:06 PM
      9h 51m
      1 stop
      DEN 7:57 PM
      Washington D.C. - Denver | Thu, Dec 10 | Frontier Airlines
      $60 $276
      78% off
      78% off
      $276 $60
    • IAD 10:35 PM
      23h 22m
      1 stop
      DEN 7:57 PM
      Washington D.C. - Denver | Sat, Dec 12 | Frontier Airlines
      $81 $276
      71% off
      71% off
      $276 $81
    • IAD 10:51 AM
      12h 23m
      1 stop
      DEN 9:14 PM
      Washington D.C. - Denver | Tue, Dec 22 | Frontier Airlines
      $82
      70% off
      $276 $82
    • IAD 11:16 AM
      10h 44m
      1 stop
      DEN 8:00 PM
      Washington D.C. - Denver | Wed, Nov 18 | Frontier Airlines
      $84
      70% off
      $276 $84
    • IAD 6:42 PM
      13h 47m
      1 stop
      DEN 6:29 AM
      Washington D.C. - Denver | Tue, Dec 8 | Frontier Airlines
      $94
      66% off
      $276 $94
    • IAD 6:42 PM
      13h 47m
      1 stop
      DEN 6:29 AM
      Washington D.C. - Denver | Tue, Dec 15 | Frontier Airlines
      $94
      66% off
      $276 $94
    • IAD 12:34 PM
      9h 23m
      1 stop
      DEN 7:57 PM
      Washington D.C. - Denver | Thu, Dec 10 | Delta Air Lines
      $109
      61% off
      $276 $109
    • IAD 12:06 PM
      9h 51m
      1 stop
      DEN 7:57 PM
      Washington D.C. - Denver | Thu, Dec 17 | Frontier Airlines
      $109
      61% off
      $276 $109
    • WAS 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      Washington D.C. - Denver | Sat, Oct 31 | Normal Airline
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    • Cheapest nonstop
      IAD 10:10 PM
      3h 45m
      Nonstop
      DEN 11:55 PM
      Washington D.C. - Denver | Fri, Nov 6 | United Airlines
      $244 $276
      12% off
      12% off
      $276 $244
    • IAD 10:10 PM
      3h 45m
      Nonstop
      DEN 11:55 PM
      Washington D.C. - Denver | Fri, Oct 30 | United Airlines
      $245 $276
      11% off
      11% off
      $276 $245
    • IAD 2:05 PM
      4h 8m
      Nonstop
      DEN 4:13 PM
      Washington D.C. - Denver | Tue, Nov 17 | United Airlines
      $280 $425
      34% off
      34% off
      $425 $280
    • IAD 7:30 PM
      4h 3m
      Nonstop
      DEN 9:33 PM
      Washington D.C. - Denver | Thu, Dec 31 | United Airlines
      $280
      34% off
      $422 $280
    • IAD 4:21 PM
      4h 4m
      Nonstop
      DEN 6:25 PM
      Washington D.C. - Denver | Sat, Dec 12 | United Airlines
      $280
      34% off
      $422 $280
    • IAD 4:21 PM
      4h 4m
      Nonstop
      DEN 6:25 PM
      Washington D.C. - Denver | Fri, Dec 11 | United Airlines
      $323
      23% off
      $422 $323
    • IAD 10:12 PM
      4h 3m
      Nonstop
      DEN 12:15 AM
      Washington D.C. - Denver | Sat, Dec 26 | United Airlines
      $355
      16% off
      $422 $355
    • IAD 10:10 PM
      4h 9m
      Nonstop
      DEN 12:19 AM
      Washington D.C. - Denver | Mon, Nov 30 | United Airlines
      $365
      14% off
      $425 $365
    • IAD 2:11 PM
      4h 11m
      Nonstop
      DEN 4:22 PM
      Washington D.C. - Denver | Wed, Jan 6 | United Airlines
      $367
      14% off
      $425 $367
    • WAS 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      Washington D.C. - Denver | Sat, Oct 31 | Normal Airline
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    • Cheapest nonstop
      IAD 2:05 PM
      4h 8m
      Nonstop
      DEN 4:13 PM
      Washington D.C. - Denver | Tue, Nov 17 | United Airlines
      $280 $425
      34% off
      34% off
      $425 $280
    • IAD 10:10 PM
      4h 9m
      Nonstop
      DEN 12:19 AM
      Washington D.C. - Denver | Mon, Nov 30 | United Airlines
      $365 $425
      14% off
      14% off
      $425 $365
    • IAD 2:11 PM
      4h 11m
      Nonstop
      DEN 4:22 PM
      Washington D.C. - Denver | Wed, Jan 6 | United Airlines
      $367 $425
      14% off
      14% off
      $425 $367
    • IAD 2:05 PM
      4h 8m
      Nonstop
      DEN 4:13 PM
      Washington D.C. - Denver | Mon, Nov 16 | United Airlines
      $367
      14% off
      $425 $367
    • IAD 12:39 PM
      4h 12m
      Nonstop
      DEN 2:51 PM
      Washington D.C. - Denver | Tue, Dec 29 | United Airlines
      $367
      14% off
      $425 $367
    • IAD 12:39 PM
      4h 12m
      Nonstop
      DEN 2:51 PM
      Washington D.C. - Denver | Mon, Dec 21 | United Airlines
      $367
      14% off
      $425 $367
    • IAD 8:15 AM
      4h 12m
      Nonstop
      DEN 10:27 AM
      Washington D.C. - Denver | Mon, Jan 4 | United Airlines
      $367
      14% off
      $425 $367
    • IAD 9:48 AM
      4h 12m
      Nonstop
      DEN 12:00 PM
      Washington D.C. - Denver | Sun, Dec 20 | United Airlines
      $368
      13% off
      $425 $368
    • IAD 2:11 PM
      4h 11m
      Nonstop
      DEN 4:22 PM
      Washington D.C. - Denver | Thu, Jan 7 | United Airlines
      $368
      13% off
      $425 $368
    • WAS 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      Washington D.C. - Denver | Sat, Oct 31 | Normal Airline
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    • IAD 10:44 AM
      6h 7m
      1 stop
      DEN 2:51 PM
      Washington D.C. - Denver | Wed, Nov 4 | American Airlines
      $260 $293
      11% off
      11% off
      $293 $260
    • WAS 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      Washington D.C. - Denver | Sat, Oct 31 | Normal Airline
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    • IAD 10:10 PM
      3h 45m
      Nonstop
      DEN 11:55 PM
      Washington D.C. - Denver | Fri, Nov 6 | United Airlines
      $244 $276
      12% off
      12% off
      $276 $244
    • IAD 10:10 PM
      3h 45m
      Nonstop
      DEN 11:55 PM
      Washington D.C. - Denver | Fri, Oct 30 | United Airlines
      $245 $276
      11% off
      11% off
      $276 $245
    • IAD 7:30 PM
      4h 3m
      Nonstop
      DEN 9:33 PM
      Washington D.C. - Denver | Thu, Dec 31 | United Airlines
      $280 $422
      34% off
      34% off
      $422 $280
    • IAD 10:12 PM
      4h 3m
      Nonstop
      DEN 12:15 AM
      Washington D.C. - Denver | Sat, Dec 26 | United Airlines
      $355
      16% off
      $422 $355
    • IAD 7:30 PM
      4h 3m
      Nonstop
      DEN 9:33 PM
      Washington D.C. - Denver | Fri, Jan 1 | United Airlines
      $367
      13% off
      $422 $367
    • IAD 7:30 PM
      4h 3m
      Nonstop
      DEN 9:33 PM
      Washington D.C. - Denver | Sat, Jan 2 | United Airlines
      $367
      13% off
      $422 $367
    • IAD 10:12 PM
      4h 3m
      Nonstop
      DEN 12:15 AM
      Washington D.C. - Denver | Wed, Dec 30 | United Airlines
      $367
      13% off
      $422 $367
    • IAD 7:30 PM
      4h 3m
      Nonstop
      DEN 9:33 PM
      Washington D.C. - Denver | Fri, Dec 18 | United Airlines
      $369
      13% off
      $422 $369
    • IAD 10:12 PM
      4h 3m
      Nonstop
      DEN 12:15 AM
      Washington D.C. - Denver | Wed, Dec 23 | United Airlines
      $373
      12% off
      $422 $373
    • WAS 1:00 PM
      17h 25m
      1 stop
      DEN 2:00 PM
      Washington D.C. - Denver | Sat, Oct 31 | Normal Airline
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Displayed flight fares from Washington D.C. to Denver 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 Denver International Airport?

The cheapest airline flying from Dulles International Airport to Denver International Airport is Frontier Airlines (from $58) among 6 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From $58
Delta Air Lines
From $109
Alaska Airlines
From $156
American Airlines
From $181
Sun Country Airlines
From $219
United Airlines
From $244

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What is the flight schedule from Dulles International Airport to Denver International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL1444

    Dulles International Airport

    12:27 PM

    IAD

    1h 48m

    Nonstop

    2:15 PM

    ATL

    - - - W T - -
    Search

  2. F93599

    Hartsfield–Jackson Atlanta International Airport

    7:58 PM

    ATL

    3h 33m

    Nonstop

    9:31 PM

    DEN

    S M T W T F S

  3. F91081

    Dulles International Airport

    6:07 PM

    IAD

    2h 20m

    Nonstop

    8:27 PM

    ATL

    - M - - - - -
    Search

  4. F93599

    Hartsfield–Jackson Atlanta International Airport

    7:58 PM

    ATL

    3h 33m

    Nonstop

    9:31 PM

    DEN

    S M T W T F S

  5. F94355

    Dulles International Airport

    11:16 AM

    IAD

    2h 33m

    Nonstop

    1:49 PM

    MCO

    S M T W T F S
    Search

  6. F93311

    Orlando Intl. Airport

    5:38 PM

    MCO

    4h 22m

    Nonstop

    8:00 PM

    DEN

    S M T W T F S

  7. F94559

    Dulles International Airport

    10:51 AM

    IAD

    3h 39m

    Nonstop

    1:30 PM

    DFW

    S M T W T F S
    Search

  8. F94463

    Dallas Fort Worth International Airport

    4:43 PM

    DFW

    2h 17m

    Nonstop

    6:00 PM

    DEN

    S M T W T F S

  9. F91081

    Dulles International Airport

    6:07 PM

    IAD

    2h 20m

    Nonstop

    8:27 PM

    ATL

    - M - - - - -
    Search

  10. F91449

    Hartsfield–Jackson Atlanta International Airport

    6:45 AM

    ATL

    3h 21m

    Nonstop

    8:06 AM

    DEN

    S M T W T F S

  11. F94707

    Dulles International Airport

    7:50 AM

    IAD

    2h 4m

    Nonstop

    9:54 AM

    ATL

    S M T W T F S
    Search

  12. F93599

    Hartsfield–Jackson Atlanta International Airport

    7:58 PM

    ATL

    3h 33m

    Nonstop

    9:31 PM

    DEN

    S M T W T F S

  13. F94355

    Dulles International Airport

    11:16 AM

    IAD

    2h 33m

    Nonstop

    1:49 PM

    MCO

    S M T W T F S
    Search

  14. F94919

    Orlando Intl. Airport

    1:19 PM

    MCO

    4h 16m

    Nonstop

    3:35 PM

    DEN

    S - - W T - S

  15. F94707

    Dulles International Airport

    7:50 AM

    IAD

    2h 4m

    Nonstop

    9:54 AM

    ATL

    S M T W T F S
    Search

  16. F91449

    Hartsfield–Jackson Atlanta International Airport

    6:45 AM

    ATL

    3h 21m

    Nonstop

    8:06 AM

    DEN

    S M T W T F S
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About Dulles International Airport and Denver International Airport

Learn about Dulles International Airport (IAD) and Denver International Airport (DEN) — including location, terminals, transportation, and travel tips.

Flight distance 2,334.94 km
Cheapest one-way ticket price $58
Cheapest return ticket price $117

FAQs for Dulles International Airport to Denver International Airport Flights

  • How long is the flight from Dulles International Airport to Denver International Airport?

    Dulles International Airport to Denver International Airport takes about 3 hours 57 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 8 daily flights from Dulles International Airport (IAD) to Denver International Airport (DEN).
  • The earliest flight from Dulles International Airport to Denver International Airport departs at 06:35, and the last departs at 22:34, with about 11 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 Denver International Airport (DEN) is quite popular. Without considering departure times or holidays, tickets cost around $428 in November, the most expensive month to book this route.
  • The earliest flight departs from Dulles International Airport (IAD) at 06:20 and arrives in Denver International Airport (DEN) at 08:22.
  • The latest flight departs from Dulles International Airport (IAD) at 17:36 and arrives in Denver International Airport (DEN) at 19:36.
  • United Airlines is a very popular airline operating an average of 4351 flights per month.
  • One-way flights from Dulles International Airport to Denver International Airport currently start from $58, and round-trip fares start from $117. The current lowest fare is a Frontier Airlines flight departing on Wed, Dec 9; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from Dulles International Airport to Denver International Airport, with an average flight time of 4 hours 49 minutes, and around 75 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 Denver International Airport is $294. Prices may vary depending on the departure date, airline, and availability.
  • Dulles International Airport to Denver International Airport operates around 74 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Dulles International Airport and Denver 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.