IAD - PHX

$164 Find Cheap Flights from Washington Dulles Airport to Phoenix - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Phoenix departing on 9/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$329
Typical prices: $342-$523
Alaska Airlines
Mon 10/12Sat 10/17
IAD - PHX • 1 stop
Cheapest non-stop
$329
Typical prices: $352-$587
United Airlines
Tue 11/3Tue 11/10
IAD - PHX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United Economy Plus adds up to six inches more legroom than standard economy.
Southwest adds free snacks; United Priority Boarding helps secure bin space.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with United Airlines. Average duration is 4h 56m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $222 (round-trip)
Shortest trip • 7h 30m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 12% price drop
Most popular
Good to know
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We hope you love your trip to Phoenix!
Flight Deals
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Flight Deals

Cheap Flights from Dulles Intl to Phoenix (IAD-PHX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Phoenix that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Phoenix

Mon, Oct 12 - Sat, Oct 17
Alaska Airlines Logo
7:24 pm - 9:26 am
IAD
-
PHX
17h 02m
1 stop
Alaska Airlines Logo
7:38 am - 5:50 pm
PHX
-
IAD
7h 12m
1 stop
$329Alaska Airlines
Sat, Oct 3 - Tue, Oct 6
Alaska Airlines Logo
7:24 pm - 9:26 am
IAD
-
PHX
17h 02m
1 stop
Alaska Airlines Logo
7:24 pm - 5:50 pm
PHX
-
IAD
19h 26m
1 stop
$329Alaska Airlines
Tue, Nov 3 - Tue, Nov 10
United Airlines Logo
6:00 pm - 9:17 pm
IAD
-
PHX
5h 17mnonstop
United Airlines Logo
3:05 pm - 9:19 pm
PHX
-
IAD
4h 14mnonstop
$329United Airlines
Wed, Aug 26 - Thu, Aug 27
United Airlines Logo
6:00 pm - 7:54 pm
IAD
-
PHX
4h 54mnonstop
United Airlines Logo
8:55 am - 4:23 pm
PHX
-
IAD
4h 28mnonstop
$329United Airlines
Thu, Aug 13 - Thu, Aug 20
Frontier Logo
9:50 am - 9:28 pm
IAD
-
PHX
14h 38m
2 stops
Frontier Logo
6:00 am - 6:29 pm
PHX
-
IAD
9h 29m
1 stop
$329Frontier
Sat, Oct 24 - Tue, Oct 27
Frontier Logo
1:38 pm - 11:15 pm
IAD
-
PHX
12h 37m
1 stop
Frontier Logo
10:40 pm - 5:36 pm
PHX
-
IAD
15h 56m
2 stops
$329Frontier
Tue, Aug 18 - Sat, Aug 22
Multiple Airlines Logo
7:53 pm - 11:31 am
IAD
-
PHX
18h 38m
1 stop
Multiple Airlines Logo
6:00 am - 6:29 pm
PHX
-
IAD
9h 29m
1 stop
$329Multiple Airlines
Sun, Aug 23 - Mon, Aug 31
Multiple Airlines Logo
7:35 pm - 11:31 am
IAD
-
PHX
18h 56m
1 stop
Multiple Airlines Logo
6:00 am - 6:29 pm
PHX
-
IAD
9h 29m
1 stop
$329Multiple Airlines
Mon, Nov 2 - Sat, Nov 7
Delta Logo
6:12 pm - 11:18 pm
IAD
-
PHX
7h 06m
1 stop
Delta Logo
11:35 pm - 9:12 am
PHX
-
IAD
7h 37m
1 stop
$349Delta
Mon, Nov 2 - Thu, Nov 5
Delta Logo
6:12 pm - 11:18 pm
IAD
-
PHX
7h 06m
1 stop
Delta Logo
11:57 am - 8:14 pm
PHX
-
IAD
6h 17m
1 stop
$349Delta
Booking Insights

KAYAK's insights & trends for Dulles Intl to Phoenix flights

Get data-powered insights and trends into flights from Dulles Intl to Phoenix to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport departing in October.

Flight prices are typical for this route right now.

Flights to Phoenix Sky Harbor Intl Airport from Washington, D.C. Dulles Intl Airport usually cost between $329 and $536 in October.
The lowest price found in the past 5 days was $329 on Alaska Airlines (Oct 6-Oct 9).

What’s the cheapest day of the week to fly from Washington Dulles Airport to Phoenix?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport clicked on KAYAK for each day over the last 12 months.

For Washington Dulles Airport to Phoenix, Saturday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Phoenix back to Washington Dulles Airport, the best deals are generally found on Friday, with Sunday being the most expensive.

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport is November, where tickets cost $415 (return) on average. On the other hand, the most expensive months are March and June, where the average cost of round-trip tickets is $583 and $508 respectively.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $490, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport, you should book around 4 weeks before departure, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Expert advice

Expert advice for your flight from Dulles Intl to Phoenix

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Laura Ratliff

Laura Ratliff

Expert on PHX

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Good to know

Low season

July

Cheapest flight

$164
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 24% increase in price.
Flight from Washington Dulles Airport to Phoenix

When to book flights from Dulles Intl to Phoenix

Are your dates flexible? Find out the best times to travel from Dulles Intl to Phoenix based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Phoenix flights

  • Does IAD have any private places for nursing moms?

    Yes. If you are a traveling mom who would like to breastfeed your baby in private or who needs to pump, you can go to one of the eight different Nursing Rooms that are located throughout the terminals, four landside and four airside. These rooms feature relaxing artwork, comfortable seating, a trash can, a table, and an electrical outlet. To access, ask it the Information Desk.

  • Does Phoenix Sky Harbor provide any pet relief areas inside the airport?

    Yes, PHX provides a number of animal relief stations both inside the airport and outside. You can find animal relief stations in Terminal 3 on the South Concourse and in Terminal 4 near Gates D1 and B2. You can find mini dog parks outside Terminal 3 on Level 1, outside Terminal 4 on the west side of baggage claim, and near the East Economy Parking Garage.

  • Does Washington Dulles have a military lounge?

    Yes. Washington Dulles has a USO located in the Main Terminal, in the baggage claim area of the Arrivals level. Open 6 am to 10 pm every day, this USO welcomes active members of the US military and their families free of charge. Some benefits of this USO include refreshments, a comfortable TV lounge with a movie library, Wi-Fi, a hospitality desk, assistance with lodging and ground transportation, and more.

  • Where can I pick up my rental car at PHX?

    The rental cars at PHX are housed in the Rental Car Center, a building south of the airport. You can catch a free Rental Car Center shuttle at the Arrivals curb of your terminal. Rental car agencies at PHX include Avis, Enterprise, Budget, Hertz, Dollar, Payless, Thrifty, SIXT, and others. Making vehicle reservations in advance is highly recommended.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport?

    In the last 5 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport was $164 for a one-way ticket and $329 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Phoenix?

    No, a passport isn't needed to fly from Washington Dulles Airport to Phoenix. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington Dulles Airport to Phoenix?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Phoenix, also known as Phoenix Sky Harbor Intl.

  • Which airlines offer Wi-Fi service onboard planes from Washington Dulles Airport to Phoenix?

    JetBlue, American Airlines, Alaska Airlines, and Delta offer inflight Wi-Fi service on the Washington Dulles Airport to Phoenix flight route.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Phoenix?

    The Boeing 737 MAX 9 is the aircraft model that flies most regularly on the Washington Dulles Airport to Phoenix flight route.

  • Which airline alliances offer flights from Washington Dulles Airport to Phoenix?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Phoenix, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Washington Dulles Airport to Phoenix?

    There are nonstop flights from Washington Dulles Airport to Phoenix on a daily basis.

  • Which is the best airline for flights from Washington, D.C. to Phoenix, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Phoenix are Southwest and Alaska Airlines. With an average price for the route of $486 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $326 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Phoenix?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Phoenix.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Phoenix?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Phoenix?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and PHX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Phoenix?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $215 or less one-way and $429 or less round-trip.
  • Situated southwest of the Potomac River on the western edge of Washington DC, the Washington Dulles International Airport (IAD) is a hub for United Airlines. Roughly in the center of the state of Arizona, the Phoenix Sky Harbor International Airport (PHX) is a hub for American Airlines.
  • Southwest, United, Delta, American, and Alaska offer flights from IAD to PHX with one stop, often in Dallas, Charlotte, New York, Atlanta, Chicago, Minneapolis, or Seattle. American and United are among the airlines that offer flights with two stops.
  • At Washington Dulles, if you reserve your parking spot at least a day before your departure, you are likely to receive a discount. The most affordable place to park your car before your flight to Phoenix is in the Economy Lot. Located further away from the terminal than other parking options, this lot has a free shuttle to the airport.
  • If you would like a quiet space to center yourself, pray, meditate, or simply relax away from the hubbub of the airport, you can visit the Interfaith Chapel at IAD. Available all day, every day, this serene space is located near gate A32. Affiliated with no particular religion, the Interfaith Chapel at IAD welcomes all.
  • If you have any questions or need any assistance when you land at Phoenix Sky Harbor, feel free to ask a PHX Navigator volunteers. These friendly airport ambassadors are recognizable by their bright purple shirts or jackets. The helpful Navigator volunteers help give Phoenix Sky Harbor its reputation as America's Friendliest Airport.

Prefer to fly direct from Washington Dulles Airport to Phoenix?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Direct returns

Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl

Monday

United Airlines

United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines

United Airlines

Thursday

United Airlines

United Airlines

Friday

United Airlines

United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

See more direct flights

Everything you need to know for your flight from Dulles Intl to Phoenix

Other airlines flying to Phoenix

Flight deals from the most popular airlines with KAYAK users flying the route