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Cheap flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport from £93

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap 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 15 September 2025.

Round-trip from

£191

One-way from

£93

Popular in

December

Cheapest in

August

Average price

£305
United Airlines
  • United Airlines
  • 10/3-11/3
  • 1 total stop
  • 12h 40m total
  • Washington, D.C. to Phoenix
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United Airlines
  • United Airlines
  • 10/1
  • Nonstop
  • 5h 14m total
  • Washington, D.C. to Phoenix
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Highest demand for flights based on searches. 5% potential increase in price (£13 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Dulles Intl to Sky Harbor Intl

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 15 September 2025.

Fri 7/1117:30IAD - PHX
Nonstop5h 13mUnited Airlines
Sun 9/1123:59PHX - IAD
Nonstop4h 13mUnited Airlines
Deal found 15/9£199
Tue 14/1017:42IAD - PHX
1 stop7h 57mHawaiian Airlines
Tue 21/1006:00PHX - IAD
1 stop7h 42mHawaiian Airlines
Deal found 15/9£200
Tue 2/1206:00IAD - PHX
1 stop7h 21mDelta
Wed 3/1223:50PHX - IAD
1 stop7h 23mDelta
Deal found 15/9£204
Sat 25/1017:10IAD - PHX
1 stop7h 18mDelta
Fri 31/1013:20PHX - IAD
1 stop7h 13mDelta
Deal found 15/9£205
Thu 23/1019:22IAD - PHX
1 stop7h 53mUnited Airlines
Sun 26/1022:59PHX - IAD
Nonstop4h 13mUnited Airlines
Deal found 15/9£206
Sat 18/1018:30IAD - PHX
1 stop8h 45mUnited Airlines
Sat 25/1013:45PHX - IAD
Nonstop4h 21mUnited Airlines
Deal found 15/9£207
Thu 6/1117:30IAD - PHX
Nonstop5h 13mUnited Airlines
Sun 9/1123:59PHX - IAD
Nonstop4h 13mUnited Airlines
Deal found 15/9£221
Wed 15/1017:42IAD - PHX
1 stop7h 57mHawaiian Airlines
Wed 22/1006:00PHX - IAD
1 stop7h 42mHawaiian Airlines
Deal found 15/9£222
Sat 25/1017:00IAD - PHX
Nonstop4h 45mSouthwest
Fri 31/1008:00PHX - IAD
Nonstop4h 10mSouthwest
Deal found 15/9£226
Wed 8/1017:42IAD - PHX
1 stop7h 57mHawaiian Airlines
Wed 15/1011:10PHX - IAD
1 stop10h 13mHawaiian Airlines
Deal found 15/9£231

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 15 September 2025.
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

Dulles Intl

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 4/12

17:59-00:16

1 stop8h 17m

Phoenix Sky Harbor Intl

Tue 9/12

06:00-16:23

1 stop8h 23m

£204

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 16/11

07:01-12:16

1 stop7h 15m

Phoenix Sky Harbor Intl

Wed 19/11

06:00-14:40

1 stop6h 40m

£204

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 5/12

17:59-00:16

1 stop8h 17m

Phoenix Sky Harbor Intl

Tue 9/12

15:20-00:02

1 stop6h 42m

£204

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 24/11

18:59-23:59

1 stop7h 00m

Phoenix Sky Harbor Intl

Thu 27/11

06:00-14:40

1 stop6h 40m

£204

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 2/12

06:03-14:00

1 stop9h 57m

Phoenix Sky Harbor Intl

Thu 4/12

00:59-11:18

1 stop8h 19m

£204

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 4/3

17:33-20:51

Nonstop5h 18m

Phoenix Sky Harbor Intl

Sat 7/3

00:45-11:43

1 stop7h 58m

£206

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 11/11

17:30-20:43

Nonstop5h 13m

Phoenix Sky Harbor Intl

Tue 18/11

15:12-21:25

Nonstop4h 13m

£226

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 25/10

17:00-18:45

Nonstop4h 45m

Phoenix Sky Harbor Intl

Fri 31/10

07:10-16:10

1 stop6h 00m

£233

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 11/10

18:30-00:15

1 stop8h 45m

Phoenix Sky Harbor Intl

Wed 15/10

08:45-16:12

Nonstop4h 27m

£233

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 14/2

17:33-20:51

Nonstop5h 18m

Phoenix Sky Harbor Intl

Tue 17/2

13:31-22:26

1 stop6h 55m

£233

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 23 results
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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 12 September 2025.

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, January 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 £729). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in July is currently the most expensive (average of £1,041). 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 15 September 2025.

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 7h 25m. 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 (83%), Avianca (78%) and Austrian Airlines (66%).

  • 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, January 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 £729). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in July is currently the most expensive (average of £1,041). 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
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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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