Trip.com
>
Cheap Flights
>
United States
>
District of Columbia
>
Washington D.C.
>
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 NZD 128 and round-trip from NZD 175. 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. | Sat, Oct 31 | United Airlines
      IAD 22:34
      3h 56m
      Direct
      DEN 00:30
      Washington D.C. - Denver | Sat, Nov 7 | United Airlines
      NZD 716 NZD 981
      27% off
      27% off
      NZD 981 NZD 716
    • DEN 17:56
      3h 29m
      Direct
      IAD 23:25
      Denver - Washington D.C. | Sun, Nov 1 | United Airlines
      IAD 14:43
      3h 50m
      Direct
      DEN 16:33
      Washington D.C. - Denver | Sun, Nov 8 | United Airlines
      NZD 716 NZD 981
      27% off
      27% off
      NZD 981 NZD 716
    • DEN 21:19
      12h 17m
      1 stop
      IAD 11:36
      Denver - Washington D.C. | Tue, Dec 1 | Frontier Airlines
      IAD 21:06
      13h 16m
      1 stop
      DEN 08:22
      Washington D.C. - Denver | Sat, Dec 5 | Frontier Airlines
      NZD 175 NZD 981
      82% off
      82% off
      NZD 981 NZD 175
    • DEN 21:20
      12h 16m
      1 stop
      IAD 11:36
      Denver - Washington D.C. | Thu, Nov 19 | Frontier Airlines
      IAD 12:31
      11h 11m
      1 stop
      DEN 21:42
      Washington D.C. - Denver | Sun, Nov 22 | Frontier Airlines
      NZD 209
      79% off
      NZD 981 NZD 209
    • DEN 10:41
      11h 2m
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Sun, Nov 22 | Frontier Airlines
      IAD 21:06
      13h 16m
      1 stop
      DEN 08:22
      Washington D.C. - Denver | Wed, Nov 25 | Frontier Airlines
      NZD 247
      75% off
      NZD 981 NZD 247
    • DEN 10:38
      11h 43m
      1 stop
      IAD 00:21
      Denver - Washington D.C. | Thu, Nov 12 | Frontier Airlines
      IAD 21:06
      13h
      1 stop
      DEN 08:06
      Washington D.C. - Denver | Sat, Nov 14 | Frontier Airlines
      NZD 265
      73% off
      NZD 981 NZD 265
    • DEN 21:20
      12h 16m
      1 stop
      IAD 11:36
      Denver - Washington D.C. | Thu, Dec 3 | Frontier Airlines
      DCA 07:00
      4h 16m
      Direct
      DEN 09:16
      Washington D.C. - Denver | Sun, Dec 6 | Frontier Airlines
      NZD 270
      72% off
      NZD 981 NZD 270
    • DEN 10:41
      11h 2m
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Wed, Dec 2 | Frontier Airlines
      IAD 07:52
      15h 40m
      1 stop
      DEN 21:32
      Washington D.C. - Denver | Sun, Dec 6 | Frontier Airlines
      NZD 287
      71% off
      NZD 981 NZD 287
    • DEN 21:19
      12h 17m
      1 stop
      IAD 11:36
      Denver - Washington D.C. | Sat, Dec 5 | Frontier Airlines
      IAD 21:06
      13h 16m
      1 stop
      DEN 08:22
      Washington D.C. - Denver | Tue, Dec 8 | Frontier Airlines
      NZD 299
      70% off
      NZD 981 NZD 299
    • DEN 13:00
      17h 25m
      1 stop
      WAS 14:00
      Denver - Washington D.C. | Fri, Oct 30 | Normal Airline
      WAS 15:00
      6h
      Direct
      DEN 16:00
      Washington D.C. - Denver | Sun, Nov 1 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest
      DEN 09:00
      6h 47m
      1 stop
      IAD 17:47
      Denver - Washington D.C. | Sun, Dec 27 | Frontier Airlines
      NZD 128 NZD 665
      81% off
      81% off
      NZD 665 NZD 128
    • DEN 10:41
      11h 2m
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Wed, Dec 9 | Frontier Airlines
      NZD 136 NZD 665
      80% off
      80% off
      NZD 665 NZD 136
    • DEN 10:41
      11h 2m
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Sun, Dec 6 | Frontier Airlines
      NZD 138 NZD 665
      79% off
      79% off
      NZD 665 NZD 138
    • DEN 10:43
      11h
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Thu, Dec 3 | Frontier Airlines
      NZD 138
      79% off
      NZD 665 NZD 138
    • DEN 10:43
      11h
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      NZD 156
      77% off
      NZD 665 NZD 156
    • DEN 10:41
      11h 2m
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Wed, Dec 2 | Frontier Airlines
      NZD 180
      73% off
      NZD 665 NZD 180
    • DEN 10:43
      11h
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Thu, Nov 26 | Frontier Airlines
      NZD 190
      71% off
      NZD 665 NZD 190
    • DEN 10:41
      11h 2m
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Sun, Nov 22 | Frontier Airlines
      NZD 191
      71% off
      NZD 665 NZD 191
    • DEN 10:43
      11h
      1 stop
      IAD 23:43
      Denver - Washington D.C. | Thu, Nov 19 | Frontier Airlines
      NZD 192
      71% off
      NZD 665 NZD 192
    • DEN 13:00
      17h 25m
      1 stop
      WAS 14:00
      Denver - Washington D.C. | Fri, Oct 30 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      DEN 23:59
      3h 20m
      Direct
      IAD 05:19
      Denver - Washington D.C. | Sat, Dec 19 | United Airlines
      NZD 434 NZD 665
      35% off
      35% off
      NZD 665 NZD 434
    • DEN 14:10
      3h 20m
      Direct
      IAD 19:30
      Denver - Washington D.C. | Tue, Nov 24 | United Airlines
      NZD 485 NZD 665
      27% off
      27% off
      NZD 665 NZD 485
    • DEN 06:00
      3h 21m
      Direct
      IAD 11:21
      Denver - Washington D.C. | Sun, Dec 20 | United Airlines
      NZD 487 NZD 1,192
      59% off
      59% off
      NZD 1,192 NZD 487
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Sat, Dec 5 | United Airlines
      NZD 487
      46% off
      NZD 902 NZD 487
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Thu, Dec 3 | United Airlines
      NZD 487
      46% off
      NZD 902 NZD 487
    • DEN 10:20
      3h 24m
      Direct
      IAD 15:44
      Denver - Washington D.C. | Sat, Nov 7 | United Airlines
      NZD 488
      59% off
      NZD 1,192 NZD 488
    • DEN 23:59
      3h 20m
      Direct
      IAD 05:19
      Denver - Washington D.C. | Mon, Nov 9 | United Airlines
      NZD 488
      59% off
      NZD 1,192 NZD 488
    • DEN 16:10
      3h 18m
      Direct
      IAD 21:28
      Denver - Washington D.C. | Fri, Nov 6 | United Airlines
      NZD 488
      59% off
      NZD 1,192 NZD 488
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Fri, Dec 4 | United Airlines
      NZD 488
      46% off
      NZD 902 NZD 488
    • DEN 13:00
      17h 25m
      1 stop
      WAS 14:00
      Denver - Washington D.C. | Fri, Oct 30 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      DEN 14:10
      3h 20m
      Direct
      IAD 19:30
      Denver - Washington D.C. | Tue, Nov 24 | United Airlines
      NZD 485 NZD 1,292
      62% off
      62% off
      NZD 1,292 NZD 485
    • DEN 06:00
      3h 21m
      Direct
      IAD 11:21
      Denver - Washington D.C. | Sun, Dec 20 | United Airlines
      NZD 487 NZD 1,292
      62% off
      62% off
      NZD 1,292 NZD 487
    • DEN 10:20
      3h 24m
      Direct
      IAD 15:44
      Denver - Washington D.C. | Sat, Nov 7 | United Airlines
      NZD 488 NZD 1,292
      62% off
      62% off
      NZD 1,292 NZD 488
    • DEN 23:59
      3h 20m
      Direct
      IAD 05:19
      Denver - Washington D.C. | Mon, Nov 9 | United Airlines
      NZD 488
      62% off
      NZD 1,292 NZD 488
    • DEN 16:10
      3h 18m
      Direct
      IAD 21:28
      Denver - Washington D.C. | Fri, Nov 6 | United Airlines
      NZD 488
      62% off
      NZD 1,292 NZD 488
    • DEN 23:59
      3h 20m
      Direct
      IAD 05:19
      Denver - Washington D.C. | Thu, Nov 19 | United Airlines
      NZD 498
      61% off
      NZD 1,292 NZD 498
    • DEN 10:20
      3h 24m
      Direct
      IAD 15:44
      Denver - Washington D.C. | Fri, Oct 30 | United Airlines
      NZD 569
      56% off
      NZD 1,292 NZD 569
    • DEN 07:40
      3h 17m
      Direct
      IAD 12:57
      Denver - Washington D.C. | Tue, Dec 1 | United Airlines
      NZD 657
      49% off
      NZD 1,292 NZD 657
    • DEN 10:20
      3h 24m
      Direct
      IAD 15:44
      Denver - Washington D.C. | Sun, Nov 8 | United Airlines
      NZD 660
      49% off
      NZD 1,292 NZD 660
    • DEN 13:00
      17h 25m
      1 stop
      WAS 14:00
      Denver - Washington D.C. | Fri, Oct 30 | Normal Airline
      Find more flights
      Find more flights
    • Cheapest nonstop
      DEN 23:59
      3h 20m
      Direct
      IAD 05:19
      Denver - Washington D.C. | Sun, Nov 1 | United Airlines
      NZD 485 NZD 1,292
      62% off
      62% off
      NZD 1,292 NZD 485
    • DEN 10:20
      3h 24m
      Direct
      IAD 15:44
      Denver - Washington D.C. | Fri, Oct 30 | United Airlines
      NZD 569 NZD 1,292
      56% off
      56% off
      NZD 1,292 NZD 569
    • DEN 23:59
      3h 20m
      Direct
      IAD 05:19
      Denver - Washington D.C. | Mon, Nov 2 | United Airlines
      NZD 663 NZD 1,292
      49% off
      49% off
      NZD 1,292 NZD 663
    • DEN 12:35
      3h 20m
      Direct
      IAD 17:55
      Denver - Washington D.C. | Thu, Oct 29 | United Airlines
      NZD 679
      47% off
      NZD 1,292 NZD 679
    • DEN 10:20
      3h 24m
      Direct
      IAD 15:44
      Denver - Washington D.C. | Wed, Nov 4 | United Airlines
      NZD 870
      33% off
      NZD 1,292 NZD 870
    • DEN 16:04
      5h 50m
      1 stop
      IAD 23:54
      Denver - Washington D.C. | Sun, Nov 1 | American Airlines
      NZD 400
      69% off
      NZD 1,292 NZD 400
    • DEN 15:14
      6h 9m
      1 stop
      IAD 23:23
      Denver - Washington D.C. | Sat, Oct 31 | American Airlines
      NZD 692
      46% off
      NZD 1,292 NZD 692
    • DEN 16:15
      5h 1m
      1 stop
      IAD 23:16
      Denver - Washington D.C. | Mon, Nov 2 | Delta Air Lines
      NZD 943
      27% off
      NZD 1,292 NZD 943
    • DEN 13:00
      17h 25m
      1 stop
      WAS 14:00
      Denver - Washington D.C. | Fri, Oct 30 | Normal Airline
      Find more flights
      Find more flights
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Sat, Dec 5 | United Airlines
      NZD 487 NZD 902
      46% off
      46% off
      NZD 902 NZD 487
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Thu, Dec 3 | United Airlines
      NZD 487 NZD 902
      46% off
      46% off
      NZD 902 NZD 487
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Fri, Dec 4 | United Airlines
      NZD 488 NZD 902
      46% off
      46% off
      NZD 902 NZD 488
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Mon, Dec 7 | United Airlines
      NZD 489
      46% off
      NZD 902 NZD 489
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Tue, Dec 1 | United Airlines
      NZD 490
      46% off
      NZD 902 NZD 490
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Wed, Dec 9 | United Airlines
      NZD 491
      46% off
      NZD 902 NZD 491
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Sat, Dec 12 | United Airlines
      NZD 491
      46% off
      NZD 902 NZD 491
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Thu, Dec 10 | United Airlines
      NZD 491
      46% off
      NZD 902 NZD 491
    • DEN 16:11
      3h 13m
      Direct
      IAD 21:24
      Denver - Washington D.C. | Sun, Dec 13 | United Airlines
      NZD 491
      46% off
      NZD 902 NZD 491
    • DEN 13:00
      17h 25m
      1 stop
      WAS 14:00
      Denver - Washington D.C. | Fri, Oct 30 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Denver to Washington D.C. 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 Denver International Airport to Dulles International Airport?

The cheapest airline flying from Denver International Airport to Dulles International Airport is Frontier Airlines (from NZD 128) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From NZD 128
Alaska Airlines
From NZD 304
American Airlines
From NZD 383
United Airlines
From NZD 448
Delta Air Lines
From NZD 451

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. F93366

    Denver International Airport

    10:47

    DEN

    2h 4m

    Direct

    13:51

    DFW

    S M T W T F S
    Search

  2. F93208

    Dallas Fort Worth International Airport

    06:00

    DFW

    2h 56m

    Direct

    09:56

    IAD

    S M T W T F S

  3. F93600

    Denver International Airport

    10:38

    DEN

    3h 11m

    Direct

    15:49

    ATL

    S M T W T F S
    Search

  4. F93692

    Hartsfield–Jackson Atlanta International Airport

    22:30

    ATL

    1h 51m

    Direct

    00:21

    IAD

    S M T W T F S

  5. F93294

    Denver International Airport

    18:57

    DEN

    3h 2m

    Direct

    23:59

    ATL

    S M T W T F S
    Search

  6. F93692

    Hartsfield–Jackson Atlanta International Airport

    22:30

    ATL

    1h 51m

    Direct

    00:21

    IAD

    S M T W T F S

  7. F92520

    Denver International Airport

    19:02

    DEN

    3h 35m

    Direct

    00:37

    MCO

    S M T W T F S
    Search

  8. F94230

    Orlando International Airport

    08:00

    MCO

    2h 21m

    Direct

    10:21

    IAD

    S M T W T F S

  9. F92748

    Denver International Airport

    11:21

    DEN

    3h 28m

    Direct

    16:49

    TPA

    S - - W T F S
    Search

  10. F92954

    Tampa International Airport

    10:37

    TPA

    2h 22m

    Direct

    12:59

    IAD

    S - T - T - -

  11. F92632

    Denver International Airport

    21:20

    DEN

    1h 58m

    Direct

    00:18

    DFW

    S M T W T F S
    Search

  12. F93208

    Dallas Fort Worth International Airport

    06:00

    DFW

    2h 56m

    Direct

    09:56

    IAD

    S M T W T F S

  13. F93312

    Denver International Airport

    10:40

    DEN

    3h 38m

    Direct

    16:18

    MCO

    S M T W T F -
    Search

  14. F94230

    Orlando International Airport

    08:00

    MCO

    2h 21m

    Direct

    10:21

    IAD

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

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 NZD 128
Cheapest return ticket price NZD 175

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 10 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 23:52, with about 10 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 NZD 741 in November, 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 NZD 128, and round-trip fares start from NZD 175. The current lowest fare is a Frontier Airlines flight departing on Sun, Dec 27; 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 42 minutes, and around 58 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 NZD 511. Prices may vary depending on the departure date, airline, and availability.
  • Denver International Airport to Dulles International Airport operates around 59 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.

Find Cheap Flights with Trip.com