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Cheap flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport from £126

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
12 Jun — 19 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Sky Harbor Intl

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Sky Harbor Intl
Explore the most affordable flight options available from Dulles Intl to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 May 2026.

Sat 24/1019:24
IAD
-
PHX
1 stop17h 02m
Alaska Airlines
Tue 27/1011:32
PHX
-
IAD
1 stop9h 27m
Alaska Airlines
Deal found 8/5£230
Tue 14/719:53
IAD
-
PHX
1 stop19h 30m
Alaska Airlines
Tue 21/715:13
PHX
-
IAD
1 stop24h 32m
Alaska Airlines
Deal found 12/5£238
Wed 27/517:38
IAD
-
PHX
1 stop20h 08m
Alaska Airlines
Tue 1/912:13
PHX
-
IAD
1 stop27h 01m
Alaska Airlines
Deal found 12/5£240
Wed 21/1007:00
IAD
-
PHX
1 stop12h 37m
Alaska Airlines
Wed 28/1007:36
PHX
-
IAD
1 stop7h 17m
Alaska Airlines
Deal found 11/5£247
Wed 8/719:49
IAD
-
PHX
1 stop19h 34m
Alaska Airlines
Wed 22/718:53
PHX
-
IAD
1 stop20h 52m
Alaska Airlines
Deal found 12/5£249
Fri 31/719:53
IAD
-
PHX
1 stop19h 30m
Alaska Airlines
Wed 26/807:00
PHX
-
IAD
1 stop8h 14m
Alaska Airlines
Deal found 12/5£250
Fri 23/1019:24
IAD
-
PHX
1 stop17h 02m
Alaska Airlines
Sat 31/1007:36
PHX
-
IAD
1 stop7h 17m
Alaska Airlines
Deal found 8/5£251
Mon 28/919:29
IAD
-
PHX
1 stop19h 02m
Alaska Airlines
Wed 30/919:49
PHX
-
IAD
1 stop19h 25m
Alaska Airlines
Deal found 12/5£253
Tue 14/717:50
IAD
-
PHX
Nonstop4h 56m
United Airlines
Wed 22/708:50
PHX
-
IAD
Nonstop4h 27m
United Airlines
Deal found 12/5£258
Wed 14/1019:24
IAD
-
PHX
1 stop17h 02m
Alaska Airlines
Fri 16/1009:00
PHX
-
IAD
1 stop11h 59m
Alaska Airlines
Deal found 12/5£260

Find flight deals from Dulles Intl to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 May 2026.

Round-trip from

£230

One-way from

£126

Popular in

March

Cheapest in

August

Average price

£357
Alaska Airlines
  • Alaska Airlines
  • 24/10-27/10
  • 2 total stops
  • 26h 29m total
  • Washington, D.C. to Phoenix
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 3/11
  • 1 total stop
  • 11h 47m total
  • Washington, D.C. to Phoenix
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£36 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Dulles Intl to Sky Harbor Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 13 May 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 8/7

19:49-12:23

1 stop19h 34m

Phoenix Sky Harbor Intl

Wed 22/7

07:11-18:45

1 stop8h 34m

£252

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 23/7

19:53-12:23

1 stop19h 30m

Phoenix Sky Harbor Intl

Mon 27/7

18:53-18:45

1 stop20h 52m

£271

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 26/9

17:26-22:09

1 stop7h 43m

Phoenix Sky Harbor Intl

Tue 29/9

13:55-21:16

Nonstop4h 21m

£280

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 15/7

17:50-19:46

Nonstop4h 56m

Phoenix Sky Harbor Intl

Sat 18/7

08:50-16:17

Nonstop4h 27m

£305

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 14/8

06:30-10:22

1 stop6h 52m

Phoenix Sky Harbor Intl

Mon 17/8

08:55-16:23

Nonstop4h 28m

£323

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 31/7

19:53-12:23

1 stop19h 30m

Phoenix Sky Harbor Intl

Wed 2/9

12:13-05:40

2 stops14h 27m

£328

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 4/11

07:00-23:16

2 stops18h 16m

Phoenix Sky Harbor Intl

Sun 8/11

15:15-19:01

1 stop25h 46m

£343

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 10/10

17:00-22:22

1 stop8h 22m

Phoenix Sky Harbor Intl

Sun 11/10

23:10-10:08

1 stop7h 58m

£346

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 28/5

19:37-11:22

1 stop18h 45m

Phoenix Sky Harbor Intl

Thu 4/6

16:23-07:34

2 stops12h 11m

£348

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 5/11

08:45-11:56

Nonstop5h 11m

Phoenix Sky Harbor Intl

Sun 8/11

00:59-07:06

Nonstop4h 07m

£352

Flights are sorted by cheapest return flights first.

Deals found on 9/5

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Dulles Intl with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport (average of £242). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of £431). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to PHX?

Find hourly flight availability from Dulles Intl to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport as you normally would.

How much does it cost for a return flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

    Departing from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport will take you 4h 54m. The distance between Washington, D.C. Dulles Intl Airport and Phoenix Sky Harbor Intl Airport is about 1950 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport are Lufthansa (92%), United Airlines (86%) and Austrian Airlines (85%).

  • Can I find deals for flights from Dulles Intl to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Sky Harbor Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Sky Harbor Intl.

  • Can I find deals for business class flights from Dulles Intl to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Dulles Intl to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport (average of £242). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of £431). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Glendale
Chandler

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How does Cheapflights help users find flights from Dulles Intl to Sky Harbor Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Sky Harbor Intl from Dulles Intl today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Sky Harbor Intl?

Cheapflights helps you find that perfect flight to Sky Harbor Intl from Dulles Intl by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Dulles Intl to Sky Harbor Intl with no change fees?

Certainly. Search results for flights to Sky Harbor Intl from Dulles Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Dulles Intl to Sky Harbor Intl become cheaper?

Not ready to book yet? You can track prices for flights from Dulles Intl to Sky Harbor Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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