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Cheap flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport from £96

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 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
20 Feb — 27 Feb1
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 21 January 2026.

Tue 28/407:10
IAD
-
PHX
1 stop11h 41m
Alaska Airlines
Wed 29/406:12
PHX
-
IAD
1 stop8h 29m
Alaska Airlines
Deal found 19/1£206
Tue 24/218:20
IAD
-
PHX
1 stop19h 20m
Alaska Airlines
Sat 28/208:20
PHX
-
IAD
1 stop7h 07m
Alaska Airlines
Deal found 19/1£209
Wed 4/307:30
IAD
-
PHX
1 stop12h 03m
Delta
Thu 12/306:15
PHX
-
IAD
1 stop14h 33m
Delta
Deal found 20/1£212
Sat 21/216:30
IAD
-
PHX
Nonstop5h 20m
Southwest
Sat 28/209:40
PHX
-
IAD
Nonstop4h 05m
Southwest
Deal found 19/1£213
Sat 14/217:25
IAD
-
PHX
1 stop8h 17m
Delta
Wed 18/212:01
PHX
-
IAD
1 stop9h 09m
Delta
Deal found 20/1£213
Sun 1/307:05
IAD
-
PHX
1 stop15h 55m
Alaska Airlines
Tue 3/320:20
PHX
-
IAD
1 stop19h 07m
Alaska Airlines
Deal found 20/1£216
Sat 14/217:25
IAD
-
PHX
1 stop8h 17m
Delta
Thu 19/212:01
PHX
-
IAD
1 stop9h 09m
Delta
Deal found 20/1£221
Tue 17/218:20
IAD
-
PHX
1 stop23h 25m
Alaska Airlines
Tue 24/208:20
PHX
-
IAD
1 stop7h 07m
Alaska Airlines
Deal found 19/1£223
Sun 1/307:05
IAD
-
PHX
1 stop18h 54m
Alaska Airlines
Wed 4/308:20
PHX
-
IAD
1 stop7h 07m
Alaska Airlines
Deal found 20/1£224

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 21 January 2026.

Round-trip from

£206

One-way from

£96

Popular in

December

Cheapest in

August

Average price

£321
Alaska Airlines
  • Alaska Airlines
  • 28/4-29/4
  • 2 total stops
  • 20h 10m total
  • Washington, D.C. to Phoenix
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 1/4
  • 1 total stop
  • 8h 05m total
  • Washington, D.C. to Phoenix
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£14 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£4 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 21 January 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

Dulles Intl

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 9/2

17:26-23:22

1 stop7h 56m

Phoenix Sky Harbor Intl

Tue 17/2

20:20-17:27

1 stop19h 07m

£248

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 25/2

18:20-11:40

1 stop19h 20m

Phoenix Sky Harbor Intl

Sat 28/2

06:00-17:20

1 stop9h 20m

£249

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 2/4

07:00-14:43

1 stop10h 43m

Phoenix Sky Harbor Intl

Tue 7/4

22:29-09:10

1 stop7h 41m

£260

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 14/2

13:20-19:18

1 stop7h 58m

Phoenix Sky Harbor Intl

Wed 18/2

15:12-21:25

Nonstop4h 13m

£267

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 4/4

17:25-22:49

1 stop8h 24m

Phoenix Sky Harbor Intl

Fri 10/4

22:29-10:13

1 stop8h 44m

£267

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 21/2

05:05-13:45

2 stops10h 40m

Phoenix Sky Harbor Intl

Sat 28/2

11:55-21:45

2 stops7h 50m

£283

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 4/3

07:30-23:50

1 stop18h 20m

Phoenix Sky Harbor Intl

Tue 10/3

13:40-09:10

2 stops16h 30m

£288

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 27/2

18:27-21:00

1 stop28h 33m

Phoenix Sky Harbor Intl

Sun 1/3

06:00-05:40

1 stop21h 40m

£300

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 19/2

18:27-21:00

1 stop28h 33m

Phoenix Sky Harbor Intl

Sat 21/2

08:20-17:27

1 stop7h 07m

£300

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

Wed 11/3

07:23-05:17

1 stop18h 54m

£302

Flights are sorted by cheapest return flights first.

Deals found on 19/1

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 16 January 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 70 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, February 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 £134). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in April is currently the most expensive (average of £213). 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 21 January 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 8h 17m. 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 (89%), Avianca (85%) and Brussels 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, February 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 £134). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport in April is currently the most expensive (average of £213). 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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