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Cheap flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport from £90

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
16 Apr — 23 Apr1
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 17 March 2026.

Sun 3/506:00
IAD
-
PHX
1 stop7h 30m
Delta
Wed 6/523:05
PHX
-
IAD
1 stop8h 17m
Delta
Deal found 12/3£242
Tue 12/507:30
IAD
-
PHX
1 stop7h 39m
Delta
Tue 12/523:46
PHX
-
IAD
1 stop6h 30m
Delta
Deal found 16/3£244
Wed 8/413:19
IAD
-
PHX
1 stop9h 18m
Delta
Mon 13/422:35
PHX
-
IAD
1 stop7h 40m
Delta
Deal found 16/3£247
Fri 17/418:22
IAD
-
PHX
1 stop8h 05m
Alaska Airlines
Wed 22/411:20
PHX
-
IAD
2 stops15h 30m
Alaska Airlines
Deal found 16/3£250
Wed 18/315:35
IAD
-
PHX
1 stop10h 14m
Delta
Mon 23/323:55
PHX
-
IAD
1 stop6h 15m
Delta
Deal found 13/3£251
Thu 16/418:22
IAD
-
PHX
1 stop8h 05m
Alaska Airlines
Mon 20/420:40
PHX
-
IAD
2 stops18h 31m
Alaska Airlines
Deal found 12/3£251
Sat 25/407:10
IAD
-
PHX
1 stop10h 50m
Alaska Airlines
Sun 3/506:37
PHX
-
IAD
1 stop8h 04m
Alaska Airlines
Deal found 12/3£252
Sat 11/417:31
IAD
-
PHX
1 stop7h 23m
Delta
Mon 13/422:35
PHX
-
IAD
1 stop7h 40m
Delta
Deal found 16/3£253
Thu 30/418:47
IAD
-
PHX
1 stop26h 39m
Alaska Airlines
Tue 5/519:15
PHX
-
IAD
1 stop19h 26m
Alaska Airlines
Deal found 12/3£254
Sat 2/512:45
IAD
-
PHX
1 stop10h 00m
Delta
Sat 9/522:55
PHX
-
IAD
1 stop8h 27m
Delta
Deal found 13/3£254
Sat 1/817:25
IAD
-
PHX
1 stop8h 37m
Delta
Sun 9/807:05
PHX
-
IAD
1 stop6h 34m
Delta
Deal found 12/3£255

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 17 March 2026.

Round-trip from

£242

One-way from

£90

Popular in

March

Cheapest in

August

Average price

£422
Delta
  • Delta
  • 3/5-6/5
  • 2 total stops
  • 15h 47m total
  • Washington, D.C. to Phoenix
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 6/5
  • 1 total stop
  • 9h 51m total
  • Washington, D.C. to Phoenix
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£33 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 March 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 17 March 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

Sat 9/5

06:00-10:12

1 stop7h 12m

Phoenix Sky Harbor Intl

Sat 9/5

23:46-09:16

1 stop6h 30m

£247

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 30/4

09:00-22:31

2 stops16h 31m

Phoenix Sky Harbor Intl

Mon 4/5

05:00-05:50

1 stop21h 50m

£270

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 11/4

08:50-10:59

Nonstop5h 09m

Phoenix Sky Harbor Intl

Wed 15/4

07:35-15:01

Nonstop4h 26m

£305

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 8/4

06:20-11:30

2 stops8h 10m

Phoenix Sky Harbor Intl

Wed 15/4

14:35-23:40

1 stop6h 05m

£323

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 7/4

18:22-23:27

1 stop8h 05m

Phoenix Sky Harbor Intl

Sat 11/4

07:00-17:22

1 stop7h 22m

£328

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 18/4

05:50-15:05

2 stops12h 15m

Phoenix Sky Harbor Intl

Tue 21/4

10:20-23:40

2 stops10h 20m

£339
Fastest return journey

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 2/9

15:25-17:05

Nonstop4h 40m

Phoenix Sky Harbor Intl

Mon 7/9

10:00-17:15

Nonstop4h 15m

£342

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 10/5

09:00-11:10

Nonstop5h 10m

Phoenix Sky Harbor Intl

Sun 10/5

23:47-07:06

Nonstop4h 19m

£344

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 20/5

17:23-19:39

Nonstop5h 16m

Phoenix Sky Harbor Intl

Mon 25/5

18:59-05:27

1 stop7h 28m

£349

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 6/8

17:41-21:59

1 stop7h 18m

Phoenix Sky Harbor Intl

Sun 9/8

08:50-16:17

Nonstop4h 27m

£390

Flights are sorted by cheapest return flights first.

Deals found on 12/3

Showing 1-10 of 24 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?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Sky Harbor Intl. Price data was last updated on 13 March 2026.

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 62 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 £142). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of £221). 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 17 March 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.

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 5h 09m. 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 United Airlines (87%), Southwest (83%) and Lufthansa (76%).

  • 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 £142). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of £221). 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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