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Phoenix Sky Harbor International Airport to Dulles International Airport flight

Explore the cheapest one-way and round-trip flights from Phoenix Sky Harbor International Airport to Dulles International Airport over the next 90 days, with one-way fares from $108 and round-trip from $205. Based on Trip.com's latest 7-day flight data.

    • Cheapest nonstop
      PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Nov 4 | United Airlines
      IAD 5:46 PM
      5h 18m
      Nonstop
      PHX 9:04 PM
      Washington D.C. - Phoenix | Tue, Nov 10 | United Airlines
      $396 $490
      19% off
      19% off
      $490 $396
    • PHX 2:08 PM
      4h 15m
      Nonstop
      IAD 9:23 PM
      Phoenix - Washington D.C. | Sat, Oct 31 | United Airlines
      IAD 12:55 PM
      5h 13m
      Nonstop
      PHX 4:08 PM
      Washington D.C. - Phoenix | Sat, Nov 7 | United Airlines
      $411 $490
      16% off
      16% off
      $490 $411
    • PHX 11:36 AM
      6h 34m
      1 stop
      IAD 8:10 PM
      Phoenix - Washington D.C. | Sat, Dec 12 | Frontier Airlines
      DCA 6:00 PM
      8h 43m
      1 stop
      PHX 12:43 AM
      Washington D.C. - Phoenix | Fri, Dec 18 | Frontier Airlines
      $205 $490
      57% off
      57% off
      $490 $205
    • PHX 11:36 AM
      6h 34m
      1 stop
      IAD 8:10 PM
      Phoenix - Washington D.C. | Tue, Dec 15 | Frontier Airlines
      IAD 8:26 PM
      12h 16m
      1 stop
      PHX 6:42 AM
      Washington D.C. - Phoenix | Sun, Dec 20 | Frontier Airlines
      $215
      56% off
      $490 $215
    • PHX 11:37 AM
      6h 35m
      1 stop
      IAD 8:12 PM
      Phoenix - Washington D.C. | Mon, Dec 7 | Frontier Airlines
      DCA 1:40 PM
      9h 5m
      1 stop
      PHX 8:45 PM
      Washington D.C. - Phoenix | Sat, Dec 12 | Frontier Airlines
      $215
      56% off
      $490 $215
    • PHX 7:30 AM
      10h 42m
      1 stop
      IAD 8:12 PM
      Phoenix - Washington D.C. | Sun, Dec 6 | Frontier Airlines
      DCA 1:40 PM
      9h 5m
      1 stop
      PHX 8:45 PM
      Washington D.C. - Phoenix | Wed, Dec 9 | Frontier Airlines
      $241
      51% off
      $490 $241
    • PHX 3:11 PM
      11h 59m
      1 stop
      IAD 5:10 AM
      Phoenix - Washington D.C. | Mon, Nov 23 | Frontier Airlines
      IAD 1:09 PM
      24h 16m
      1 stop
      PHX 11:25 AM
      Washington D.C. - Phoenix | Thu, Nov 26 | Frontier Airlines
      $247
      50% off
      $490 $247
    • PHX 11:36 AM
      6h 34m
      1 stop
      IAD 8:10 PM
      Phoenix - Washington D.C. | Fri, Dec 11 | Frontier Airlines
      DCA 6:00 PM
      8h 43m
      1 stop
      PHX 12:43 AM
      Washington D.C. - Phoenix | Fri, Dec 18 | Frontier Airlines
      $247
      50% off
      $490 $247
    • PHX 11:31 AM
      6h 41m
      1 stop
      IAD 8:12 PM
      Phoenix - Washington D.C. | Sat, Dec 5 | Frontier Airlines
      DCA 1:40 PM
      9h 5m
      1 stop
      PHX 8:45 PM
      Washington D.C. - Phoenix | Tue, Dec 8 | Frontier Airlines
      $249
      49% off
      $490 $249
    • PHX 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Phoenix - Washington D.C. | Wed, Oct 28 | Normal Airline
      WAS 3:00 PM
      6h
      Nonstop
      PHX 4:00 PM
      Washington D.C. - Phoenix | Fri, Oct 30 | Normal Airline
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    • Cheapest
      PHX 11:31 AM
      6h 41m
      1 stop
      IAD 8:12 PM
      Phoenix - Washington D.C. | Thu, Dec 3 | Frontier Airlines
      $108 $273
      60% off
      60% off
      $273 $108
    • PHX 9:29 PM
      20h 42m
      1 stop
      IAD 8:11 PM
      Phoenix - Washington D.C. | Fri, Dec 11 | Frontier Airlines
      $120 $273
      56% off
      56% off
      $273 $120
    • PHX 3:11 PM
      11h 59m
      1 stop
      IAD 5:10 AM
      Phoenix - Washington D.C. | Sat, Nov 21 | Frontier Airlines
      $139 $273
      49% off
      49% off
      $273 $139
    • PHX 11:36 AM
      6h 35m
      1 stop
      IAD 8:11 PM
      Phoenix - Washington D.C. | Thu, Dec 10 | Frontier Airlines
      $141
      48% off
      $273 $141
    • PHX 11:36 AM
      6h 35m
      1 stop
      IAD 8:11 PM
      Phoenix - Washington D.C. | Thu, Dec 17 | Frontier Airlines
      $141
      48% off
      $273 $141
    • PHX 9:22 PM
      8h 5m
      1 stop
      IAD 7:27 AM
      Phoenix - Washington D.C. | Fri, Dec 18 | Frontier Airlines
      $141
      48% off
      $273 $141
    • PHX 11:31 AM
      6h 41m
      1 stop
      IAD 8:12 PM
      Phoenix - Washington D.C. | Wed, Dec 2 | Frontier Airlines
      $142
      48% off
      $273 $142
    • PHX 11:31 AM
      6h 41m
      1 stop
      IAD 8:12 PM
      Phoenix - Washington D.C. | Fri, Dec 4 | Frontier Airlines
      $142
      48% off
      $273 $142
    • PHX 9:22 PM
      8h 5m
      1 stop
      IAD 7:27 AM
      Phoenix - Washington D.C. | Sun, Dec 20 | Frontier Airlines
      $143
      48% off
      $273 $143
    • PHX 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Phoenix - Washington D.C. | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      PHX 3:08 PM
      4h 15m
      Nonstop
      IAD 9:23 PM
      Phoenix - Washington D.C. | Sat, Dec 12 | United Airlines
      $213 $273
      22% off
      22% off
      $273 $213
    • PHX 3:10 PM
      4h 15m
      Nonstop
      IAD 9:25 PM
      Phoenix - Washington D.C. | Sat, Dec 5 | United Airlines
      $229 $273
      16% off
      16% off
      $273 $229
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Nov 4 | United Airlines
      $251 $480
      48% off
      48% off
      $480 $251
    • PHX 9:50 AM
      4h 17m
      Nonstop
      IAD 4:07 PM
      Phoenix - Washington D.C. | Fri, Dec 25 | United Airlines
      $252
      69% off
      $806 $252
    • PHX 3:09 PM
      4h 12m
      Nonstop
      IAD 9:21 PM
      Phoenix - Washington D.C. | Fri, Jan 8 | United Airlines
      $253
      47% off
      $480 $253
    • PHX 3:08 PM
      4h 15m
      Nonstop
      IAD 9:23 PM
      Phoenix - Washington D.C. | Wed, Nov 25 | United Airlines
      $288
      64% off
      $806 $288
    • PHX 10:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Oct 28 | United Airlines
      $288
      40% off
      $480 $288
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Thu, Nov 5 | United Airlines
      $288
      40% off
      $480 $288
    • PHX 10:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Fri, Oct 30 | United Airlines
      $288
      40% off
      $480 $288
    • PHX 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Phoenix - Washington D.C. | Wed, Oct 28 | Normal Airline
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    • Cheapest nonstop
      PHX 9:50 AM
      4h 17m
      Nonstop
      IAD 4:07 PM
      Phoenix - Washington D.C. | Fri, Dec 25 | United Airlines
      $252 $806
      69% off
      69% off
      $806 $252
    • PHX 3:08 PM
      4h 15m
      Nonstop
      IAD 9:23 PM
      Phoenix - Washington D.C. | Wed, Nov 25 | United Airlines
      $288 $806
      64% off
      64% off
      $806 $288
    • PHX 3:08 PM
      4h 15m
      Nonstop
      IAD 9:23 PM
      Phoenix - Washington D.C. | Thu, Nov 26 | United Airlines
      $289 $806
      64% off
      64% off
      $806 $289
    • PHX 8:50 AM
      4h 13m
      Nonstop
      IAD 3:03 PM
      Phoenix - Washington D.C. | Fri, Nov 20 | United Airlines
      $302
      63% off
      $806 $302
    • PHX 2:54 PM
      4h 15m
      Nonstop
      IAD 9:09 PM
      Phoenix - Washington D.C. | Tue, Dec 1 | United Airlines
      $324
      60% off
      $806 $324
    • PHX 2:35 PM
      4h 12m
      Nonstop
      IAD 8:47 PM
      Phoenix - Washington D.C. | Fri, Dec 18 | United Airlines
      $339
      57% off
      $806 $339
    • PHX 11:58 PM
      4h 12m
      Nonstop
      IAD 6:10 AM
      Phoenix - Washington D.C. | Sun, Jan 3 | United Airlines
      $347
      56% off
      $806 $347
    • PHX 11:58 PM
      4h 12m
      Nonstop
      IAD 6:10 AM
      Phoenix - Washington D.C. | Mon, Dec 28 | United Airlines
      $347
      56% off
      $806 $347
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Mon, Nov 30 | United Airlines
      $427
      47% off
      $806 $427
    • PHX 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Phoenix - Washington D.C. | Wed, Oct 28 | Normal Airline
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    • PHX 7:38 AM
      7h 12m
      1 stop
      IAD 5:50 PM
      Phoenix - Washington D.C. | Sat, Oct 31 | Alaska Airlines
      $181 $389
      53% off
      53% off
      $389 $181
    • PHX 7:38 AM
      7h 12m
      1 stop
      IAD 5:50 PM
      Phoenix - Washington D.C. | Thu, Oct 29 | Alaska Airlines
      $198 $389
      49% off
      49% off
      $389 $198
    • PHX 6:00 AM
      6h 9m
      1 stop
      IAD 2:09 PM
      Phoenix - Washington D.C. | Sun, Nov 1 | Delta Air Lines
      $326 $389
      16% off
      16% off
      $389 $326
    • PHX 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Phoenix - Washington D.C. | Wed, Oct 28 | Normal Airline
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    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Nov 4 | United Airlines
      $251 $480
      48% off
      48% off
      $480 $251
    • PHX 10:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Oct 28 | United Airlines
      $288 $480
      40% off
      40% off
      $480 $288
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Thu, Nov 5 | United Airlines
      $288 $480
      40% off
      40% off
      $480 $288
    • PHX 10:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Fri, Oct 30 | United Airlines
      $288
      40% off
      $480 $288
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Fri, Nov 13 | United Airlines
      $288
      40% off
      $480 $288
    • PHX 10:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Thu, Oct 29 | United Airlines
      $289
      40% off
      $480 $289
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Fri, Nov 6 | United Airlines
      $289
      40% off
      $480 $289
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Nov 11 | United Airlines
      $295
      39% off
      $480 $295
    • PHX 11:59 PM
      4h 9m
      Nonstop
      IAD 6:08 AM
      Phoenix - Washington D.C. | Wed, Nov 18 | United Airlines
      $364
      24% off
      $480 $364
    • PHX 1:00 PM
      17h 25m
      1 stop
      WAS 2:00 PM
      Phoenix - Washington D.C. | Wed, Oct 28 | Normal Airline
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Displayed flight fares from Phoenix to Washington D.C. are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Trip.com Price Insights: Flights from Phoenix Sky Harbor International Airport to Dulles International Airport

What is the cheapest month for one-way flights from Phoenix Sky Harbor International Airport to Dulles International Airport?

Data is based on average one-way flight prices from Phoenix Sky Harbor International Airport to Dulles International Airport in Trip.com's database over the past 12 months.

Based on Trip.com’s data from the past 12 months, if you’re looking for a low-cost one-way ticket from Phoenix Sky Harbor International Airport to Dulles International Airport, the best time to buy is in March, with an average price of $144. You’ll want to avoid November, when the average price can reach as high as $616.

$616
$380
$144
0
    Cheapest
  • $445
    Oct
  • $616
    Nov
  • $217
    Dec
  • $164
    Jan
  • $266
    Feb
  • $144
    Mar
  • $385
    Apr
  • $195
    May
  • $243
    Jun
  • $420
    Jul
  • $252
    Aug
  • $246
    Sep

What is the cheapest day of the week to fly from Phoenix Sky Harbor International Airport to Dulles International Airport?

The data is based on the past 12 months and shows the average ticket prices from Phoenix Sky Harbor International Airport to Dulles International Airport for each day of the week in the Trip.com database.

Based on Trip.com’s data from the past 12 months, the cheapest day to depart from Phoenix Sky Harbor International Airport to Dulles International Airport is Friday, with average fares typically lower than other days. You’ll want to avoid flying on Saturday, as ticket prices are usually the highest that day.

$435
$300
$165
$30
    Cheapest
  • $206
    Mon
  • $233
    Tue
  • $238
    Wed
  • $281
    Thu
  • $165
    Fri
  • $435
    Sat
  • $276
    Sun

Which airline offers the cheapest flights from Phoenix Sky Harbor International Airport to Dulles International Airport?

The cheapest airline flying from Phoenix Sky Harbor International Airport to Dulles International Airport is Frontier Airlines (from $108) among 5 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Frontier Airlines
From $108
Alaska Airlines
From $149
Delta Air Lines
From $156
American Airlines
From $200
United Airlines
From $213

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What is the flight schedule from Phoenix Sky Harbor International Airport to Dulles International Airport?

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

Flight info.
Departure
Arrival
Weekly Schedule

  1. F93284

    Phoenix Sky Harbor International Airport

    7:47 AM

    PHX

    2h 26m

    Nonstop

    11:13 AM

    DFW

    - M T - - - -
    Search

  2. F93208

    Dallas Fort Worth International Airport

    6:00 AM

    DFW

    2h 56m

    Nonstop

    9:56 AM

    IAD

    S M T W T F S

  3. AS2257

    Phoenix Sky Harbor International Airport

    6:08 AM

    PHX

    1h 22m

    Nonstop

    6:30 AM

    SAN

    S - - - - - S
    Search

  4. AS506

    San Diego International Airport

    9:46 AM

    SAN

    5h 4m

    Nonstop

    5:50 PM

    IAD

    S M T W T F S

  5. AS401

    Phoenix Sky Harbor International Airport

    4:58 PM

    PHX

    3h 12m

    Nonstop

    7:10 PM

    SEA

    S - - - - - S
    Search

  6. AS367

    Seattle Tacoma Intl. Airport

    9:36 PM

    SEA

    5h 4m

    Nonstop

    5:40 AM

    IAD

    S - - W T - S

  7. AS603

    Phoenix Sky Harbor International Airport

    11:46 AM

    PHX

    3h 8m

    Nonstop

    2:54 PM

    SEA

    S M T W T F S
    Search

  8. AS366

    Seattle Tacoma Intl. Airport

    3:56 PM

    SEA

    5h 3m

    Nonstop

    11:59 PM

    IAD

    - M T W T - -

  9. AS611

    Phoenix Sky Harbor International Airport

    7:56 PM

    PHX

    3h 12m

    Nonstop

    11:08 PM

    SEA

    S M T W T - S
    Search

  10. AS367

    Seattle Tacoma Intl. Airport

    9:36 PM

    SEA

    5h 4m

    Nonstop

    5:40 AM

    IAD

    S - - W T - S

  11. F94113

    Phoenix Sky Harbor International Airport

    9:22 PM

    PHX

    1h 14m

    Nonstop

    9:36 PM

    LAS

    - - - W T - -
    Search

  12. F92428

    Harry Reid Intl. Airport

    9:43 PM

    LAS

    4h 6m

    Nonstop

    4:49 AM

    ATL

    S M T W T F S

  13. F91082

    Hartsfield–Jackson Atlanta International Airport

    6:00 AM

    ATL

    1h 51m

    Nonstop

    7:51 AM

    IAD

    - M - - - - -

  14. F92532

    Phoenix Sky Harbor International Airport

    9:27 PM

    PHX

    2h 26m

    Nonstop

    12:53 AM

    DFW

    S - - W T F S
    Search

  15. F93208

    Dallas Fort Worth International Airport

    6:00 AM

    DFW

    2h 56m

    Nonstop

    9:56 AM

    IAD

    S M T W T F S

  16. F93983

    Phoenix Sky Harbor International Airport

    1:25 PM

    PHX

    1h 14m

    Nonstop

    1:39 PM

    LAS

    S M T W T - S
    Search

  17. F91116

    Harry Reid Intl. Airport

    7:20 AM

    LAS

    4h 3m

    Nonstop

    2:23 PM

    ATL

    S M T W T F S

  18. F93692

    Hartsfield–Jackson Atlanta International Airport

    10:30 PM

    ATL

    1h 51m

    Nonstop

    12:21 AM

    IAD

    S - T W T F S
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About Phoenix Sky Harbor International Airport and Dulles International Airport

Learn about Phoenix Sky Harbor International Airport (PHX) and Dulles International Airport (IAD) — including location, terminals, transportation, and travel tips.

Flight distance 3,144.75 km
Cheapest one-way ticket price $108
Cheapest return ticket price $205

FAQs for Phoenix Sky Harbor International Airport to Dulles International Airport Flights

  • How long is the flight from Phoenix Sky Harbor International Airport to Dulles International Airport?

    Phoenix Sky Harbor International Airport to Dulles International Airport takes about 4 hours 27 minutes on average. Actual flight time may vary depending on route, weather and air traffic.
  • There are around 4 daily flights from Phoenix Sky Harbor International Airport (PHX) to Dulles International Airport (IAD).
  • The earliest flight from Phoenix Sky Harbor International Airport to Dulles International Airport departs at 08:45, and the last departs at 14:05, with about 3 flights per day. Flight times may change, so please check the latest departure and arrival times before you travel.
  • The route from Phoenix Sky Harbor International Airport (PHX) to Dulles International Airport (IAD) is quite popular. Without considering departure times or holidays, tickets cost around $450 in October, the most expensive month to book this route.
  • The earliest flight departs from Phoenix Sky Harbor International Airport (PHX) at 08:45 and arrives in Dulles International Airport (IAD) at 16:12.
  • The latest flight departs from Phoenix Sky Harbor International Airport (PHX) at 20:34 and arrives in Dulles International Airport (IAD) at 07:31.
  • United Airlines is a very popular airline operating an average of 1777 flights per month.
  • One-way flights from Phoenix Sky Harbor International Airport to Dulles International Airport currently start from $108, and round-trip fares start from $205. The current lowest fare is a Frontier Airlines flight departing on Thu, Dec 3; prices may vary depending on availability.
  • Yes. United Airlines operate direct flights from Phoenix Sky Harbor International Airport to Dulles International Airport, with an average flight time of 4 hours 57 minutes, and around 21 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 Phoenix Sky Harbor International Airport to Dulles International Airport is $298. Prices may vary depending on the departure date, airline, and availability.
  • Phoenix Sky Harbor International Airport to Dulles International Airport operates around 21 weekly flights, mainly by United Airlines. Actual frequency may vary during holidays and seasonal schedule adjustments.
  • Enter Phoenix Sky Harbor 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 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.