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Cheap flights from Washington, D.C. to Phoenix Sky Harbor Intl Airport from £105

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 29/4. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PHX
30 Apr — 7 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington, D.C. to Sky Harbor Intl

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to Sky Harbor Intl
Explore the most affordable flight options available from Washington, D.C. to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2026.

Tue 12/507:10
IAD
-
PHX
1 stop12h 40m
Alaska Airlines
Tue 19/507:20
PHX
-
IAD
1 stop7h 22m
Alaska Airlines
Deal found 27/3£240
Mon 4/507:10
IAD
-
PHX
1 stop10h 50m
Alaska Airlines
Sat 9/506:37
PHX
-
IAD
1 stop8h 04m
Alaska Airlines
Deal found 31/3£240
Mon 13/418:22
IAD
-
PHX
1 stop8h 05m
Alaska Airlines
Tue 21/417:02
PHX
-
IAD
1 stop9h 38m
Alaska Airlines
Deal found 28/3£241
Wed 29/417:37
IAD
-
PHX
Nonstop5h 12m
United Airlines
Mon 4/512:30
PHX
-
IAD
1 stop7h 19m
United Airlines
Deal found 26/3£244
Mon 6/418:22
IAD
-
PHX
1 stop8h 05m
Alaska Airlines
Tue 21/417:02
PHX
-
IAD
1 stop9h 38m
Alaska Airlines
Deal found 30/3£246
Sat 18/412:38
IAD
-
PHX
1 stop7h 16m
United Airlines
Wed 22/413:23
PHX
-
IAD
Nonstop4h 24m
United Airlines
Deal found 26/3£247
Mon 27/416:30
IAD
-
PHX
Nonstop5h 05m
Southwest
Tue 5/506:10
PHX
-
IAD
1 stop7h 40m
Southwest
Deal found 26/3£248
Sun 3/507:10
IAD
-
PHX
1 stop10h 50m
Alaska Airlines
Wed 6/517:00
PHX
-
IAD
1 stop9h 50m
Alaska Airlines
Deal found 31/3£250
Wed 13/517:30
IAD
-
PHX
Nonstop5h 10m
Southwest
Sat 16/507:45
PHX
-
IAD
Nonstop4h 20m
Southwest
Deal found 26/3£252
Tue 5/509:00
IAD
-
PHX
2 stops16h 43m
Alaska Airlines
Sat 9/506:37
PHX
-
IAD
1 stop8h 04m
Alaska Airlines
Deal found 31/3£253
Mon 19/1017:25
IAD
-
PHX
1 stop7h 51m
Alaska Airlines
Fri 23/1007:01
PHX
-
IAD
1 stop9h 00m
Alaska Airlines
Deal found 30/3£255
Sun 25/1017:25
IAD
-
PHX
1 stop7h 51m
Alaska Airlines
Mon 26/1007:01
PHX
-
IAD
1 stop9h 00m
Alaska Airlines
Deal found 30/3£256

Find flight deals from Washington, D.C. to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 31 March 2026.

Round-trip from

£240

One-way from

£105

Popular in

March

Cheapest in

August

Average price

£401

Good one-way deal

£204 or less
Alaska Airlines
  • Alaska Airlines
  • 6/5-11/5
  • 2 total stops
  • 32h 49m total
  • Washington, D.C. to Phoenix
Search Deals
United Airlines
  • United Airlines
  • 2/6
  • Nonstop
  • 4h 56m total
  • Washington, D.C. to Phoenix
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£40 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Phoenix Sky Harbor Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 31 March 2026.
Use the filters below to find and compare flights from Washington, D.C. 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

Mon 4/5

07:10-15:00

1 stop10h 50m

Phoenix Sky Harbor Intl

Sat 9/5

06:37-17:41

1 stop8h 04m

£240

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 20/4

17:27-22:42

1 stop8h 15m

Phoenix Sky Harbor Intl

Mon 27/4

23:55-09:15

1 stop6h 20m

£293

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 18/5

17:23-19:39

Nonstop5h 16m

Phoenix Sky Harbor Intl

Tue 19/5

13:50-23:34

1 stop6h 44m

£299

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Tue 2/6

11:57-20:22

2 stops11h 25m

Phoenix Sky Harbor Intl

Wed 3/6

23:50-08:54

1 stop6h 04m

£304

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 18/5

17:23-19:39

Nonstop5h 16m

Phoenix Sky Harbor Intl

Wed 20/5

12:30-22:49

1 stop7h 19m

£312

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Tue 19/5

06:10-11:50

2 stops8h 40m

Phoenix Sky Harbor Intl

Tue 19/5

13:55-23:25

1 stop6h 30m

£313

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Thu 23/4

16:15-21:10

1 stop7h 55m

Phoenix Sky Harbor Intl

Wed 29/4

11:10-23:00

2 stops8h 50m

£316

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 23/4

17:37-19:49

Nonstop5h 12m

Phoenix Sky Harbor Intl

Mon 27/4

07:35-15:01

Nonstop4h 26m

£320

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 20/4

18:22-23:27

1 stop8h 05m

Phoenix Sky Harbor Intl

Sat 2/5

06:37-00:09

2 stops14h 32m

£321
Fastest return journey

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 1/5

16:30-18:35

Nonstop5h 05m

Phoenix Sky Harbor Intl

Sat 9/5

07:45-15:05

Nonstop4h 20m

£324

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 44 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Washington, D.C. 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. to Phoenix Sky Harbor Intl Airport

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

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

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Phoenix Sky Harbor Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. to Phoenix Sky Harbor Intl Airport (average of £99). Flying from Washington, D.C. to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of £189). 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 WAS to PHX?

Find hourly flight availability from Washington, D.C. 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 31 March 2026.

When flying from Washington, D.C. to Phoenix Sky Harbor Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Washington, D.C. to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Washington, D.C. to Sky Harbor Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 31 March 2026.

The most flights from WAS to PHX are scheduled on a Tuesday (12 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

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

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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. to Phoenix Sky Harbor Intl Airport?

    Departing from Washington, D.C. to Phoenix Sky Harbor Intl Airport will take you 9h 10m. Washington, D.C. and Phoenix Sky Harbor Intl Airport are separated by a distance of 1950 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. to Phoenix Sky Harbor Intl Airport on time: United Airlines (87%), Southwest (83%), Lufthansa (76%).

  • Can I find deals for flights from Washington, D.C. to Sky Harbor Intl that include hotel bookings?

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

  • How can I find direct flights from Washington, D.C. 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 Washington, D.C. to Sky Harbor Intl.

  • Can I find deals for business class flights from Washington, D.C. to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Phoenix Sky Harbor Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Washington, D.C. to Phoenix Sky Harbor Intl Airport (average of £99). Flying from Washington, D.C. to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of £189). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington, D.C. to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Sky Harbor Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Washington, D.C. to Sky Harbor Intl?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Sky Harbor Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Sky Harbor Intl?

Cheapflights simply makes it quick and affordable to book flights from Washington, D.C. to Sky Harbor Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Washington, D.C. to Sky Harbor Intl with no change fees?

Need flexible booking options for your flight to Sky Harbor Intl from Washington, D.C.? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Sky Harbor Intl become cheaper?

Yes, Cheapflights offers price alerts on Washington, D.C. to Sky Harbor Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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