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$120+ Cheap flights from Washington, D.C. (WAS) to Phoenix

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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — PHX
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Phoenix are usually found in August or January, booked 71 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Washington, D.C. to Phoenix

Cheapest flights from Washington, D.C. to Phoenix
Explore the most affordable flight options available from Washington, D.C. to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2026.

This deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:23 am
BWI
-
PHX
1 stop8h 26m
Frontier
Sun 10/410:44 pm
PHX
-
BWI
1 stop6h 45m
Frontier
Deal found 6/16$221
This Frontier deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:25 am
BWI
-
PHX
1 stop14h 19m
Frontier
Thu 8/612:20 am
PHX
-
BWI
1 stop11h 06m
Frontier
Deal found 6/17$240
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/53:21 pm
BWI
-
PHX
1 stop22h 09m
Frontier
Mon 8/1011:23 pm
PHX
-
BWI
1 stop13h 11m
Frontier
Deal found 6/17$241
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:36 am
BWI
-
PHX
1 stop14h 01m
Frontier
Mon 7/1312:20 am
PHX
-
BWI
1 stop11h 06m
Frontier
Deal found 6/16$245
This CheapOair deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/214:44 pm
BWI
-
PHX
1 stop22h 50m
Frontier
Thu 7/2312:20 am
PHX
-
BWI
1 stop11h 06m
Frontier
Deal found 6/17$250
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:28 pm
BWI
-
PHX
1 stop16h 02m
Frontier
Wed 7/1512:12 am
PHX
-
BWI
1 stop21h 11m
Frontier
Deal found 6/17$252
This CheapOair deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/79:49 am
BWI
-
PHX
1 stop14h 04m
Frontier
Tue 8/1112:20 am
PHX
-
BWI
1 stop11h 06m
Frontier
Deal found 6/16$255
This deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:23 am
BWI
-
PHX
1 stop8h 26m
Frontier
Sun 9/1310:44 pm
PHX
-
BWI
1 stop6h 45m
Frontier
Deal found 6/17$257
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:21 pm
BWI
-
PHX
1 stop13h 43m
Frontier
Mon 7/612:20 am
PHX
-
BWI
1 stop11h 06m
Frontier
Deal found 6/16$260
This Frontier deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:21 pm
BWI
-
PHX
1 stop13h 43m
Frontier
Fri 7/1012:20 am
PHX
-
BWI
1 stop11h 06m
Frontier
Deal found 6/17$265
This Booking.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:21 pm
BWI
-
PHX
1 stop20h 09m
Frontier
Fri 7/109:04 am
PHX
-
BWI
1 stop8h 32m
Frontier
Deal found 6/17$267
This Kiwi.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:24 am
BWI
-
PHX
2 stops16h 20m
Frontier
Fri 9/2510:44 pm
PHX
-
BWI
1 stop14h 28m
Frontier
Deal found 6/17$269

Find flight deals from Washington, D.C. to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to Phoenix (PH1). 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 June 18, 2026.

Round-trip from

$221

One-way from

$120
(Frontier)

Popular in

March

Cheapest in

August

Average price

$525
From Washington, D.C. (WAS) to Phoenix
Search Deals
One-way flight from Washington, D.C. (WAS) to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Phoenix 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 2,558,603 searches. Data last updated June 18, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 9/4

7:35 pm-11:31 am

1 stop18h 56m

Phoenix Sky Harbor Intl

Mon 9/7

7:49 pm-6:14 pm

1 stop19h 25m

$333

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Fri 7/17

5:46 pm-9:34 pm

1 stop6h 48m

Phoenix Sky Harbor Intl

Sat 7/25

11:50 pm-9:26 am

1 stop6h 36m

$349

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Thu 9/3

8:30 am-12:56 pm

1 stop7h 26m

Phoenix Sky Harbor Intl

Sun 9/6

6:08 am-4:04 pm

1 stop6h 56m

$349

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 7/9

6:00 am-10:43 am

1 stop7h 43m

Phoenix Sky Harbor Intl

Sun 7/12

11:04 pm-10:23 am

1 stop8h 19m

$349

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 7/29

6:00 am-9:44 am

1 stop6h 44m

Phoenix Sky Harbor Intl

Mon 8/3

11:05 pm-10:23 am

1 stop8h 18m

$349

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 8/4

6:10 am-10:01 am

1 stop6h 51m

Phoenix Sky Harbor Intl

Tue 8/4

11:05 pm-10:23 am

1 stop8h 18m

$349

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Thu 7/16

5:00 pm-11:37 pm

1 stop9h 37m

Phoenix Sky Harbor Intl

Mon 7/27

11:49 pm-11:27 am

1 stop8h 38m

$349

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Tue 7/14

6:00 am-10:43 am

1 stop7h 43m

Phoenix Sky Harbor Intl

Tue 7/21

11:04 pm-8:40 am

1 stop6h 36m

$349

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Tue 8/11

6:10 am-10:01 am

1 stop6h 51m

Phoenix Sky Harbor Intl

Tue 8/18

6:00 am-4:59 pm

1 stop7h 59m

$349

Washington, D.C.Phoenix

DCA - PHX

DCAPHX

Washington, D.C. Reagan-National

Fri 7/31

12:23 pm-5:55 pm

1 stop8h 32m

Phoenix Sky Harbor Intl

Tue 8/4

5:45 am-2:53 pm

1 stop6h 08m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Washington, D.C. with our price prediction graph.
Estimated round-trip 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

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

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Phoenix (average of $108). Flying from Washington, D.C. to Phoenix in September is currently the most expensive (average of $995). 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 8% on flights from Washington, D.C. to Phoenix by exploring options for tickets in the morning.

Weekly flight availability from Washington, D.C. to Phoenix

Explore weekly flight availability from Washington, D.C. to Phoenix. 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 June 18, 2026.

The most flights from WAS to PH1 are scheduled on a Tuesday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from Washington, D.C. to Phoenix?

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

The best time to book flights from Washington, D.C. to Phoenix is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest day to fly from Washington, D.C. to Phoenix?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Phoenix. Price data was last updated on June 13, 2026.

Travelers seeking maximum savings on their Washington, D.C. to Phoenix flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Washington, D.C. to Phoenix flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Phoenix trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on PHX

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Phoenix. Reviews last updated June 18, 2026.
Read through reviews of airlines operating flights from Washington, D.C. to Phoenix, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,237 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Southwest
7.9
Good
4,237 reviews
Southwest
7.9
Good
4,237 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Delta
7.8
Good
8,410 reviews
Southwest
7.9
Good
4,237 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
United Airlines
7.4
Good
9,859 reviews
Southwest
7.9
Good
4,237 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
American Airlines
7.1
Good
11,686 reviews
Southwest
7.9
Good
4,237 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Frontier
5.6
Fair
2,880 reviews
Southwest
7.9
Good
4,237 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Entertainment

7.5

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

Related info for your journey

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

    There are many flights that can get you from Washington, D.C. to Phoenix in 6h 48m. Fly via Alaska Airlines, Delta, or United Airlines to get the fastest option. Washington, D.C. and Phoenix are separated by a distance of 1950 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Washington, D.C. to Phoenix round-trip?

    According to our current data, Frontier ($131), Delta ($160), and Southwest ($229) offers the cheapest pricing from Washington, D.C. to Phoenix. Frontier is priced at 70% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Washington, D.C. to Phoenix one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. to Phoenix are Frontier ($88), Alaska Airlines ($108), and Southwest ($113).

  • What are the most popular routes from Washington, D.C. to Phoenix?

    The most popular route from Washington, D.C. to Phoenix is Washington, D.C. Dulles Intl - Phoenix Sky Harbor Intl. You may also consider Baltimore/Washington - Phoenix Sky Harbor Intl or Washington, D.C. Reagan-National - Phoenix Sky Harbor Intl.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Phoenix consider choosing United Airlines (92%), Austrian Airlines (90%) or Avianca (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Washington, D.C. to Phoenix?

    Looking at all options, your cheapest flight can be booked for $184. While the most popular route (Washington, D.C. Dulles Intl - Phoenix Sky Harbor Intl) can be booked for $284 on average, our data indicates $913 when flying from Washington, D.C. to Phoenix.

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

    Yes. In addition to deals on Washington, D.C. to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Phoenix?

    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 Phoenix.

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

    Yes. Cheapflights offers flight deals from Washington, D.C. to Phoenix 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?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Phoenix (average of $108). Flying from Washington, D.C. to Phoenix in September is currently the most expensive (average of $995). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Washington, D.C. to Phoenix

Discover the top 7 airlines that operate flights from Washington, D.C. to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$131Average$269FlexibilityNo cancel feeOn-time62%
DeltaCheapest$160Average$356FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$216Average$362FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$227Average$418FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$228Average$474FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$229Average$495FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$252Average$326FlexibilityNo cancel feeOn-time75%

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