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Denver International Airport to Dulles International Airport flight

Explore the cheapest one-way and round-trip flights from Denver International Airport to Dulles International Airport over the next 90 days, with one-way fares from US$71 and round-trip from US$98. Based on Trip.com's latest 7-day flight data.

      • Cheapest nonstop
        DEN 23:52
        3h 25m
        Direct
        IAD 05:17
        Denver - Washington D.C. | Fri, Oct 9 | United Airlines
        IAD 22:34
        3h 56m
        Direct
        DEN 00:30
        Washington D.C. - Denver | Fri, Oct 16 | United Airlines
        US$400 US$548
        27% off
        27% off
        US$548 US$400
      • DEN 17:56
        3h 29m
        Direct
        IAD 23:25
        Denver - Washington D.C. | Sat, Oct 10 | United Airlines
        IAD 14:43
        3h 50m
        Direct
        DEN 16:33
        Washington D.C. - Denver | Sat, Oct 17 | United Airlines
        US$400 US$548
        27% off
        27% off
        US$548 US$400
      • DEN 21:19
        12h 17m
        1 stop
        IAD 11:36
        Denver - Washington D.C. | Mon, Nov 9 | Frontier Airlines
        IAD 21:06
        13h 16m
        1 stop
        DEN 08:22
        Washington D.C. - Denver | Fri, Nov 13 | Frontier Airlines
        US$98 US$548
        82% off
        82% off
        US$548 US$98
      • DEN 21:20
        12h 16m
        1 stop
        IAD 11:36
        Denver - Washington D.C. | Wed, Oct 28 | Frontier Airlines
        IAD 12:31
        11h 11m
        1 stop
        DEN 21:42
        Washington D.C. - Denver | Sat, Oct 31 | Frontier Airlines
        US$117
        79% off
        US$548 US$117
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Sat, Oct 31 | Frontier Airlines
        IAD 21:06
        13h 16m
        1 stop
        DEN 08:22
        Washington D.C. - Denver | Tue, Nov 3 | Frontier Airlines
        US$138
        75% off
        US$548 US$138
      • DEN 10:38
        11h 43m
        1 stop
        IAD 00:21
        Denver - Washington D.C. | Wed, Oct 21 | Frontier Airlines
        IAD 21:06
        13h
        1 stop
        DEN 08:06
        Washington D.C. - Denver | Fri, Oct 23 | Frontier Airlines
        US$148
        73% off
        US$548 US$148
      • DEN 21:20
        12h 16m
        1 stop
        IAD 11:36
        Denver - Washington D.C. | Wed, Nov 11 | Frontier Airlines
        DCA 07:00
        4h 16m
        Direct
        DEN 09:16
        Washington D.C. - Denver | Sat, Nov 14 | Frontier Airlines
        US$151
        72% off
        US$548 US$151
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Tue, Nov 10 | Frontier Airlines
        IAD 07:52
        15h 40m
        1 stop
        DEN 21:32
        Washington D.C. - Denver | Sat, Nov 14 | Frontier Airlines
        US$160
        71% off
        US$548 US$160
      • DEN 21:19
        12h 17m
        1 stop
        IAD 11:36
        Denver - Washington D.C. | Fri, Nov 13 | Frontier Airlines
        IAD 21:06
        13h 16m
        1 stop
        DEN 08:22
        Washington D.C. - Denver | Mon, Nov 16 | Frontier Airlines
        US$167
        70% off
        US$548 US$167
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Tue, Nov 17 | Frontier Airlines
        IAD 12:31
        11h 11m
        1 stop
        DEN 21:42
        Washington D.C. - Denver | Wed, Nov 18 | Frontier Airlines
        US$191
        65% off
        US$548 US$191
      • DEN 10:18
        7h 54m
        1 stop
        IAD 20:12
        Denver - Washington D.C. | Wed, Dec 2 | Frontier Airlines
        IAD 12:06
        9h 49m
        1 stop
        DEN 19:55
        Washington D.C. - Denver | Tue, Dec 8 | Frontier Airlines
        US$191
        65% off
        US$548 US$191
      • DEN 21:19
        12h 15m
        1 stop
        IAD 11:34
        Denver - Washington D.C. | Wed, Oct 7 | Frontier Airlines
        IAD 06:00
        8h 48m
        1 stop
        DEN 12:48
        Washington D.C. - Denver | Wed, Oct 14 | Frontier Airlines
        US$196
        64% off
        US$548 US$196
      • DEN 10:38
        11h 43m
        1 stop
        IAD 00:21
        Denver - Washington D.C. | Sat, Oct 24 | Frontier Airlines
        IAD 21:06
        13h 16m
        1 stop
        DEN 08:22
        Washington D.C. - Denver | Mon, Oct 26 | Frontier Airlines
        US$197
        64% off
        US$548 US$197
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Sat, Nov 7 | Frontier Airlines
        IAD 21:06
        13h 16m
        1 stop
        DEN 08:22
        Washington D.C. - Denver | Mon, Nov 9 | Frontier Airlines
        US$200
        64% off
        US$548 US$200
      • DEN 13:00
        17h 25m
        1 stop
        WAS 14:00
        Denver - Washington D.C. | Thu, Oct 8 | Normal Airline
        WAS 15:00
        6h
        Direct
        DEN 16:00
        Washington D.C. - Denver | Sat, Oct 10 | Normal Airline
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      • Cheapest nonstop
        DEN 23:52
        3h 25m
        Direct
        IAD 05:17
        Denver - Washington D.C. | Sun, Oct 18 | United Airlines
        US$237 US$331
        28% off
        28% off
        US$331 US$237
      • DEN 23:52
        3h 25m
        Direct
        IAD 05:17
        Denver - Washington D.C. | Mon, Oct 19 | United Airlines
        US$241 US$331
        27% off
        27% off
        US$331 US$241
      • DEN 09:00
        6h 47m
        1 stop
        IAD 17:47
        Denver - Washington D.C. | Sat, Dec 5 | Frontier Airlines
        US$71 US$331
        79% off
        79% off
        US$331 US$71
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Tue, Nov 17 | Frontier Airlines
        US$76
        77% off
        US$331 US$76
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Sat, Nov 14 | Frontier Airlines
        US$77
        77% off
        US$331 US$77
      • DEN 10:43
        11h
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Wed, Nov 11 | Frontier Airlines
        US$77
        77% off
        US$331 US$77
      • DEN 10:43
        11h
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Wed, Nov 18 | Frontier Airlines
        US$87
        74% off
        US$331 US$87
      • DEN 23:48
        22h 40m
        1 stop
        IAD 00:28
        Denver - Washington D.C. | Mon, Oct 19 | Frontier Airlines
        US$91
        73% off
        US$331 US$91
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Tue, Nov 10 | Frontier Airlines
        US$101
        69% off
        US$331 US$101
      • DEN 10:43
        11h
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Wed, Nov 4 | Frontier Airlines
        US$106
        68% off
        US$331 US$106
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Sat, Oct 31 | Frontier Airlines
        US$107
        68% off
        US$331 US$107
      • DEN 10:43
        11h
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Wed, Oct 28 | Frontier Airlines
        US$107
        68% off
        US$331 US$107
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Tue, Nov 3 | Frontier Airlines
        US$107
        68% off
        US$331 US$107
      • DEN 10:41
        11h 2m
        1 stop
        IAD 23:43
        Denver - Washington D.C. | Sat, Nov 7 | Frontier Airlines
        US$107
        68% off
        US$331 US$107
      • DEN 13:00
        17h 25m
        1 stop
        WAS 14:00
        Denver - Washington D.C. | Thu, Oct 8 | Normal Airline
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Displayed flight fares from Denver International Airport to Dulles International Airport are based on average prices across airlines for the next 3 months according to the latest Trip.com data.

Which airline offers the cheapest flights from Denver International Airport to Dulles International Airport?

The cheapest airline flying from Denver International Airport to Dulles International Airport is Frontier Airlines (from US$71) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From US$71
Alaska Airlines
From US$170
American Airlines
From US$194
United Airlines
From US$237
Delta Air Lines
From US$252

Find more flights and airlines

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

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. F93294

    Denver International Airport

    18:59

    DEN

    2h 57m

    Direct

    23:56

    ATL

    S M T W T F S
    Search

  2. F93692

    Hartsfield–Jackson Atlanta International Airport

    22:24

    ATL

    1h 46m

    Direct

    00:10

    IAD

    S M T W T F S

  3. F93366

    Denver International Airport

    10:25

    DEN

    2h 4m

    Direct

    13:29

    DFW

    S M T W T F S
    Search

  4. F93208

    Dallas Fort Worth International Airport

    17:06

    DFW

    2h 55m

    Direct

    21:01

    IAD

    S M T - T F -

  5. F91765

    Denver International Airport

    18:42

    DEN

    2h 4m

    Direct

    19:46

    LAS

    S M T W T F S
    Search

  6. F93494

    Harry Reid International Airport

    22:14

    LAS

    4h 28m

    Direct

    05:42

    IAD

    S M T W T F S

  7. F93600

    Denver International Airport

    10:44

    DEN

    3h 11m

    Direct

    15:55

    ATL

    S M T W T F S
    Search

  8. F93692

    Hartsfield–Jackson Atlanta International Airport

    22:24

    ATL

    1h 46m

    Direct

    00:10

    IAD

    S M T W T F S

  9. F92632

    Denver International Airport

    21:26

    DEN

    1h 58m

    Direct

    00:24

    DFW

    S M T W T F S
    Search

  10. F93208

    Dallas Fort Worth International Airport

    17:06

    DFW

    2h 55m

    Direct

    21:01

    IAD

    S M T - T F -

  11. F92520

    Denver International Airport

    19:12

    DEN

    3h 47m

    Direct

    00:59

    MCO

    S M T W T F S
    Search

  12. F94230

    Orlando International Airport

    08:06

    MCO

    2h 11m

    Direct

    10:17

    IAD

    S M T W T F S

  13. F93312

    Denver International Airport

    10:30

    DEN

    3h 47m

    Direct

    16:17

    MCO

    S M - W T F S
    Search

  14. F94230

    Orlando International Airport

    08:06

    MCO

    2h 11m

    Direct

    10:17

    IAD

    S M T W T F S

  15. F91450

    Denver International Airport

    19:10

    DEN

    3h

    Direct

    00:10

    ATL

    - - T - - - -
    Search

  16. F93692

    Hartsfield–Jackson Atlanta International Airport

    22:24

    ATL

    1h 46m

    Direct

    00:10

    IAD

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

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

Flight distance 2,334.94km
Cheapest one-way ticket price US$71
Cheapest return ticket price US$98

FAQs for Denver International Airport to Dulles International Airport Flights

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

    Denver International Airport to Dulles International Airport takes about 3 hours 14 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 8 daily flights from Denver International Airport (DEN) to Dulles International Airport (IAD).
  • The earliest flight from Denver International Airport to Dulles International Airport departs at 06:00, and the last departs at 23:59, 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 Denver International Airport (DEN) to Dulles International Airport (IAD) is quite popular. Without considering departure times or holidays, tickets cost around US$485 in October, the most expensive month to book this route.
  • United Airlines is a very popular airline operating an average of 4298 flights per month.
  • One-way flights from Denver International Airport to Dulles International Airport currently start from US$71, and round-trip fares start from US$98. The current lowest fare is a Frontier Airlines flight departing on Sat, Dec 5; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from Denver International Airport to Dulles International Airport, with an average flight time of 3 hours 44 minutes, and around 59 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 Denver International Airport to Dulles International Airport is US$292. Prices may vary depending on the departure date, airline, and availability.
  • Denver International Airport to Dulles International Airport operates around 60 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Denver International Airport and Dulles 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 the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, 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 have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.