$82 Cheap Flights from Washington (IAD) to Phoenix (PHX)

View $82 flight on Tue, Oct 28, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Phoenix Sky Harbor Intl. Airport (PHX)

Cheap Flights from Washington to Phoenix (IAD-PHX)

Prices were available within the past 7 days and start at $82 for one-way flights and $163 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Oct 28 - Sun, Nov 2
IAD
Washington
PHX
Phoenix
$163 Roundtrip, found 3 hours ago
$163
Roundtrip
found 3 hours ago
Select United flight, departing Tue, Oct 28 from Washington to Phoenix, returning Sun, Nov 2, priced at $163 found 3 hours ago
United
Sat, Feb 28 - Sat, Mar 7
IAD
Washington
PHX
Phoenix
$169 Roundtrip, found 14 hours ago
$169
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Feb 28 from Washington to Phoenix, returning Sat, Mar 7, priced at $169 found 14 hours ago
United
Tue, Feb 10 - Tue, Feb 17
IAD
Washington
PHX
Phoenix
$171 Roundtrip, found 5 days ago
$171
Roundtrip
found 5 days ago
Select United flight, departing Tue, Feb 10 from Washington to Phoenix, returning Tue, Feb 17, priced at $171 found 5 days ago
Southwest Airlines
Tue, Feb 10 - Sat, Feb 14
IAD
Washington
PHX
Phoenix
$181 Roundtrip, found 3 days ago
$181
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, Feb 10 from Washington to Phoenix, returning Sat, Feb 14, priced at $181 found 3 days ago
Southwest Airlines
Wed, Feb 18 - Sat, Feb 21
IAD
Washington
PHX
Phoenix
$181 Roundtrip, found 3 days ago
$181
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Wed, Feb 18 from Washington to Phoenix, returning Sat, Feb 21, priced at $181 found 3 days ago
United
Thu, Oct 30 - Sat, Nov 1
IAD
Washington
PHX
Phoenix
$182 Roundtrip, found 9 hours ago
$182
Roundtrip
found 9 hours ago
Select United flight, departing Thu, Oct 30 from Washington to Phoenix, returning Sat, Nov 1, priced at $182 found 9 hours ago
United
Thu, Oct 30 - Sun, Nov 2
IAD
Washington
PHX
Phoenix
$184 Roundtrip, found 7 hours ago
$184
Roundtrip
found 7 hours ago
Select United flight, departing Thu, Oct 30 from Washington to Phoenix, returning Sun, Nov 2, priced at $184 found 7 hours ago
Frontier Airlines
Sat, Nov 1 - Sat, Nov 8
IAD
Washington
PHX
Phoenix
$184 Roundtrip, found 1 hour ago
$184
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Nov 1 from Washington to Phoenix, returning Sat, Nov 8, priced at $184 found 1 hour ago
Hawaiian Airlines
Wed, Oct 15 - Mon, Oct 27
IAD
Washington
PHX
Phoenix
$302 Roundtrip, found 13 hours ago
$302
Roundtrip
found 13 hours ago
Select Hawaiian Airlines flight, departing Wed, Oct 15 from Washington to Phoenix, returning Mon, Oct 27, priced at $302 found 13 hours ago
Delta
Sat, Nov 1 - Wed, Nov 5
IAD
Washington
PHX
Phoenix
$327 Roundtrip, just found
$327
Roundtrip
just found
Select Delta flight, departing Sat, Nov 1 from Washington to Phoenix, returning Wed, Nov 5, priced at $327 just found

Find the cheapest month to fly from Washington (IAD) to Phoenix (PHX)

August is typically the cheapest month to fly

From $154 - $299 per traveler.
Flights from Washington (IAD) to Phoenix (PHX)
Origin airport
Washington Dulles Intl.
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$163
Distance
1952 mi
Average flight time
1 hour 46 mins

Washington to Phoenix Flights

The cheapest times to fly from Washington to Phoenix

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Phoenix are during the month of October. You can find some of the cheapest flights from Washington to Phoenix with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Phoenix

Sunday is one of the best days to book for cheap flights from Washington to Phoenix: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Phoenix

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $82 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Phoenix flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Phoenix airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX) cost?
Lock in a cheap one-way flight from $82 or cheap return flight from $163 from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
The cheapest month to fly from IAD to PHX is October, when there's less demand. Off-peak months are generally when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
If you're departing from Washington Dulles Intl. Airport (IAD), you can jump on a direct flight to Sky Harbor Intl. Airport (PHX) with United Airlines.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
Southwest Airlines and United Airlines are some well-known airlines offering reasonable fares. Don't forget that flight prices from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX) can change depending on the time of year, demand and how early you book. With Expedia's filter tool, you can easily find an IAD to PHX flight that works with your plans and budget.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
Every day, an average of 2 direct flights take off from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX). Select the departure date that best fits your itinerary.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
The 5 PM departures from IAD to PHX are the busiest. These flights can come with a higher price due to their popularity. If you want to save on your fare, choose a less crowded time to fly.
What day of the week has the most flights from IAD to PHX?
If you travel on a Friday, you'll get the biggest range of options for flights from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX).
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
Washington Dulles Intl. Airport (IAD)'s earliest flight to Sky Harbor Intl. Airport (PHX) is at approximately 12:50PM UTC-5. With a travel duration of 5h 9m, you'll arrive at around 3:59PM UTC-7.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
The average flight duration from IAD to PHX is 5 hours and 9 minutes, covering a distance of 1,950 mi.
What airline has the least delays from IAD to PHX?
With 94% of flights usually landing on time, Lufthansa has the best on-time performance for nonstop flights from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX). To monitor your flight status and get notified if anything changes, simply head to the Expedia App.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
To land at Sky Harbor Intl. Airport (PHX) on schedule, pick a flight that leaves Washington Dulles Intl. Airport (IAD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Phoenix from Washington Dulles Intl. Airport (IAD)?
If you're traveling on a direct flight from Washington Dulles Intl. Airport (IAD) to Phoenix, Sky Harbor Intl. Airport (PHX) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX) last-minute?
Last-minute fares from IAD to PHX are usually more expensive. To lock in the lowest rates, start searching for flights ahead of time. That being said, if you can play around with your travel dates, you may score a cheap fare right before you leave.
Is it cheaper to book an IAD to PHX flight and hotel package?
You can save money by booking an IAD to PHX flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After selecting your preferred flights and accommodations, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Sky Harbor Intl. Airport (PHX)?
Generally, it's possible to cancel or reschedule your IAD to PHX flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.