$105 Cheap Flights from Washington (IAD) to Phoenix (PHX)

View $105 flight on Tue, May 12, 2026Opens in a new window

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

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Cheap Flights from Washington to Phoenix (IAD-PHX)

Prices were available within the past 7 days and start at $105 for one-way flights and $210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Apr 14 - Thu, Apr 16
IAD
Washington
PHX
Phoenix
$210 Roundtrip, just found
$210
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 14 from Washington to Phoenix, returning Thu, Apr 16, priced at $210 just found
Alaska Airlines
Sun, Apr 26 - Tue, May 5
IAD
Washington
PHX
Phoenix
$214 Roundtrip, found 3 days ago
$214
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Apr 26 from Washington to Phoenix, returning Tue, May 5, priced at $214 found 3 days ago
Alaska Airlines
Sat, Apr 18 - Wed, Apr 22
IAD
Washington
PHX
Phoenix
$216 Roundtrip, found 6 hours ago
$216
Roundtrip
found 6 hours ago
Select Alaska Airlines flight, departing Sat, Apr 18 from Washington to Phoenix, returning Wed, Apr 22, priced at $216 found 6 hours ago
Frontier Airlines
Tue, Apr 14 - Thu, Apr 16
IAD
Washington
PHX
Phoenix
$220 Roundtrip, just found
$220
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 14 from Washington to Phoenix, returning Thu, Apr 16, priced at $220 just found
Alaska Airlines
Tue, Apr 7 - Tue, Apr 14
IAD
Washington
PHX
Phoenix
$221 Roundtrip, found 5 hours ago
$221
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Tue, Apr 7 from Washington to Phoenix, returning Tue, Apr 14, priced at $221 found 5 hours ago
Alaska Airlines
Tue, Apr 14 - Thu, Apr 16
IAD
Washington
PHX
Phoenix
$221 Roundtrip, just found
$221
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Apr 14 from Washington to Phoenix, returning Thu, Apr 16, priced at $221 just found
Alaska Airlines
Tue, May 5 - Sun, May 10
IAD
Washington
PHX
Phoenix
$225 Roundtrip, found 2 days ago
$225
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, May 5 from Washington to Phoenix, returning Sun, May 10, priced at $225 found 2 days ago
Delta
Tue, Apr 14 - Thu, Apr 16
IAD
Washington
PHX
Phoenix
$239 Roundtrip, just found
$239
Roundtrip
just found
Select Delta flight, departing Tue, Apr 14 from Washington to Phoenix, returning Thu, Apr 16, priced at $239 just found
Southwest Airlines
Sat, Apr 25 - Sat, May 2
IAD
Washington
PHX
Phoenix
$389 Roundtrip, just found
$389
Roundtrip
just found
Select Southwest Airlines flight, departing Sat, Apr 25 from Washington to Phoenix, returning Sat, May 2, priced at $389 just found
Sun Country Airlines
Sun, Oct 4 - Thu, Oct 15
IAD
Washington
PHX
Phoenix
$397 Roundtrip, found 2 days ago
$397
Roundtrip
found 2 days ago
Select Sun Country Airlines flight, departing Sun, Oct 4 from Washington to Phoenix, returning Thu, Oct 15, priced at $397 found 2 days ago

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Alternative airports near Phoenix

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $684
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $684

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

February is typically the cheapest month to fly

From $148 - $412 per traveler.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find cheap one-way flights from $105 and cheap return flights from $210 Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) with Expedia. One-way flights generally range between $187 and $1001, and roundtrip flights usually range from $377 to $2248. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
August is the cheapest month to fly from Washington, DC (IAD) to Phoenix, AZ (PHX), with average return fares around $353. This is about 16% lower than the average price throughout the year, as August often sees less travel demand. Other cheap months to fly from Washington to Phoenix include May and September.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
United offers around 24 weekly direct flights from IAD to PHX.
What is the cheapest airline that flies from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Southwest Airlines is one of the cheapest airlines offering nonstop flights from Washington, DC (IAD) to Phoenix (PHX) starting from around $173. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best airline to fly with from Washington, DC (IAD) to Phoenix, AZ (PHX) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, WN typically offers the lowest fares. United offers the most daily flights from IAD to PHX, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
When flying from Washington, DC (IAD) to Phoenix (PHX), August and September are your best months. Both months feature average return flight prices around $353, making them budget-friendly options. August is popular for summer vacations, while September often sees a drop in travel demand, allowing for a more relaxed journey.*Prices based on flights available on Expedia in the last year.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
On average, there are around 4 nonstop flights per day from Washington Dulles Intl. (IAD) to Sky Harbor Intl. (PHX). For more options, look at flights that include layovers.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The earliest flight from Washington, DC (IAD) to Phoenix (PHX) typically departs at around 5:00 AM, operated by American Airlines. An early departure allows you to arrive in Phoenix with plenty of time to enjoy your day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The most popular departure times for flights from Washington, DC (IAD) to Phoenix, AZ (PHX) are in the early morning, from 6am to 9am. About 34% of passengers prefer this time window. Many major carriers, including United Airlines, Delta Air Lines, and American Airlines, offer flights during this window. This timing works well because it allows you to arrive in Phoenix with plenty of time to enjoy the day.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Direct flights from IAD to PHX usually take about 5 hours 20 minutes, traveling roughly 1,953 miles. If you opt for a connecting flight, expect to add around 2 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
First class is available on flights from IAD to PHX. First class cabins are available on:

  • United Airlines
  • American Airlines
  • Delta Air Lines

How much is a business class flight from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
A direct, return business class ticket from Washington, DC (IAD) to Phoenix, AZ (PHX) typically costs between $1,630 - $2,221. A non-stop, one-way business class flight is usually around $720 - $880. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Phoenix from Washington Dulles Intl. (IAD)?
From Washington Dulles Intl. (IAD), you can fly into Sky Harbor Intl. (PHX) to reach Phoenix. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN), Charlotte-Douglas Intl. (CLT) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) Phoenix Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Washington, DC (IAD-Washington Dulles Intl.) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Sky Harbor Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$194
Distance
1952 mi
Average flight time
2 hours 58 mins

Book with confidence

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 April. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $105 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.

 

Washington to Phoenix Flights

*Flight schedules are subject to change.

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*Available to One Key members.