$120 Cheap Flights from Washington (IAD) to Phoenix (PHX)

View $120 flight on Thu, Jul 23, 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 $120 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, Aug 26 - Sat, Aug 29
IAD
Washington
PHX
Phoenix
$240 Roundtrip, just found
$240
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Aug 26 from Washington to Phoenix, returning Sat, Aug 29, priced at $240 just found
Delta
Tue, Aug 18 - Wed, Aug 19
IAD
Washington
PHX
Phoenix
$249 Roundtrip, found 1 hour ago
$249
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Aug 18 from Washington to Phoenix, returning Wed, Aug 19, priced at $249 found 1 hour ago
Frontier Airlines
Fri, Jul 3 - Fri, Jul 10
IAD
Washington
PHX
Phoenix
$250 Roundtrip, found 3 hours ago
$250
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, Jul 3 from Washington to Phoenix, returning Fri, Jul 10, priced at $250 found 3 hours ago
Delta
Wed, Aug 19 - Mon, Aug 24
IAD
Washington
PHX
Phoenix
$254 Roundtrip, found 15 hours ago
$254
Roundtrip
found 15 hours ago
Select Delta flight, departing Wed, Aug 19 from Washington to Phoenix, returning Mon, Aug 24, priced at $254 found 15 hours ago
Frontier Airlines
Tue, Aug 18 - Wed, Aug 19
IAD
Washington
PHX
Phoenix
$254 Roundtrip, found 1 hour ago
$254
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Tue, Aug 18 from Washington to Phoenix, returning Wed, Aug 19, priced at $254 found 1 hour ago
Delta
Tue, Aug 18 - Wed, Aug 19
IAD
Washington
PHX
Phoenix
$257 Roundtrip, found 1 hour ago
$257
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Aug 18 from Washington to Phoenix, returning Wed, Aug 19, priced at $257 found 1 hour ago
Frontier Airlines
Mon, Jun 29 - Fri, Jul 3
IAD
Washington
PHX
Phoenix
$260 Roundtrip, found 10 hours ago
$260
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Mon, Jun 29 from Washington to Phoenix, returning Fri, Jul 3, priced at $260 found 10 hours ago
Alaska Airlines
Wed, Aug 26 - Sat, Aug 29
IAD
Washington
PHX
Phoenix
$270 Roundtrip, just found
$270
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Aug 26 from Washington to Phoenix, returning Sat, Aug 29, priced at $270 just found
United
Tue, Sep 29 - Tue, Oct 6
IAD
Washington
PHX
Phoenix
$277 Roundtrip, found 5 hours ago
$277
Roundtrip
found 5 hours ago
Select United flight, departing Tue, Sep 29 from Washington to Phoenix, returning Tue, Oct 6, priced at $277 found 5 hours ago
American Airlines
Thu, Aug 20 - Mon, Aug 24
IAD
Washington
PHX
Phoenix
$357 Roundtrip, found 2 hours ago
$357
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Thu, Aug 20 from Washington to Phoenix, returning Mon, Aug 24, priced at $357 found 2 hours ago

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 $362
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $362

What you need to know for your flight from Washington Dulles Intl. to Sky Harbor Intl.

Washington (IAD) to Phoenix (PHX) at a glance

Explore a range of options for flights from Washington Dulles International Airport (IAD) to Phoenix Sky Harbor International Airport (PHX) on this domestic short-haul route. Whether you prefer full-service airlines or budget-friendly choices, you can find the best itinerary to match your budget and schedule. With weekly flights available, uncover the lowest fares from Washington as you prepare to experience the iconic sights and vibrant neighborhoods of Phoenix.

  • Fastest flight duration: around 5 hours non-stop
  • Route distance: roughly 2,000 miles (3,220 km)
  • Flights per week: around 20+ flights with multiple daily departures on average
  • Typical fares (one-way): economy tickets often range from $120–$435, depending on seasonality and how far ahead you book

Flights from Washington Dulles International Airport (IAD) to Sky Harbor International Airport (PHX)

Based on recent traveler bookings, here are the top airlines favored for flights from Washington to Phoenix, primarily for non-stop and one-stop options. Common layover points include Hartsfield-Jackson Atlanta International Airport (ATL) with a layover of about 2 hours and 15 minutes, Denver International Airport (DEN) at roughly 1 hour and 15 minutes, and Charlotte-Douglas International Airport (CLT) with an estimated 1-hour layover. These choices allow you to tailor your itinerary by balancing price, total travel time, and cabin class.

  • United: As a comprehensive airline, United provides both non-stop and one-stop options. The one-way ticket prices generally fall between $120 and $495. This carrier represents about 64% of the departures on this route, with non-stop flights taking around 5 hours.
  • Southwest Airlines: Known for its budget-friendly approach, Southwest offers both non-stop and one-stop flights, with one-way fares usually ranging from $120 to $435. It makes up roughly 20% of the departures along this route, with a typical non-stop duration of 5 hours.
  • Frontier Airlines: A budget carrier, Frontier provides one-stop services at competitive prices, with one-way fares typically between $120 and $245. This airline accounts for about 5% of the flights on this route, with an in-flight duration of 6h 15m and a total travel time of around 8 hours, including layovers.
  • Delta: As a full-service airline, Delta offers one-stop flights at prices ranging from $130 to $450 for one-way tickets. It comprises approximately 5% of departures on this route, with an in-flight time of 6h 15m, totaling about 8 hours including layover times.
  • American Airlines: Another full-service option, American Airlines provides one-stop flights with one-way fares that generally range from $150 to $500. This carrier represents around 3% of departures on this route, with an in-flight time of 6h 15m and a total journey time of about 8 hours, factoring in layovers.

Travelers flying from Washington to Phoenix can enhance their journey by upgrading to United's first class or premium economy class, while Delta exclusively offers first class options.

Best time to fly from Washington (IAD) to Phoenix (PHX)

The most popular months for travelers flying from Washington to Phoenix are March, April, and December, when peak temperatures in Phoenix reach up to 74.5°F in April. If you prefer quieter travel, consider July, the least busy time to visit with temperatures around 95.7°F and typically the lowest average one-way fare (around $211). Flight availability peaks in April, with approximately 30 flights per week, making it easier to find convenient departure times. August has the fewest flights, with approximately 19 flights per week.

  • Cheapest time to fly: July usually offers good deals with average one-way fare around $211, roughly 16% cheaper than the yearly average.
  • More budget-friendly months to fly: August, September, and May typically offer average one-way fares roughly ranging from $214 to $227.
  • Most flight options: April has the highest number of flights from Washington to Phoenix, with approximately 30 flights per week, giving you more flexibility in scheduling your trip.
calendar iconMonthtemperature iconTemperaturecrowd level iconDemandflights iconWeekly Flightsprice iconAverage one-way Fare
January55.4°F (13.0°C)Average20$272
February58.6°F (14.8°C)Average20$291
March66.0°F (18.9°C)High29$303
April74.5°F (23.6°C)High30$274
May82.0°F (27.8°C)Average29$227
June92.3°F (33.5°C)Average25$230
July95.7°F (35.4°C)Low21$211
August94.8°F (34.9°C)Low19$214
September89.8°F (32.1°C)Low22$216
October77.7°F (25.4°C)Average26$239
November65.5°F (18.6°C)Average25$261
December55.4°F (13.0°C)High27$284

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from Washington (IAD) to Phoenix (PHX)

  • Washington to Phoenix (DCA-PHX): Ronald Reagan Washington National Airport (DCA) is approximately 23 miles from Washington Dulles International Airport (IAD). On this route, one-way economy fares generally fall between $95 and $430, fluctuating based on the season and how far in advance you book. Travelers can choose from both non-stop and one-stop flights. Major airlines operating on this route include American Airlines and the budget-friendly Frontier Airlines. Additionally, options for business and first-class service are also provided.

How to find the best prices for flights from Washington (IAD) to Phoenix (PHX)

Getting some of the best deals on flights from Washington to Phoenix is all about timing and flexibility. Here are some key tips to help you save:

  1. Best times to book and fly: cheaper fares are usually available when booking at least 2 months in advance, although most travelers tend to book 2-8 weeks ahead. Evening flights (6 PM to 12 AM) often offer lower prices, yet afternoon flights (12 PM to 6 PM) are the most popular. Additionally, flying on Tuesdays typically results in cheaper fares, while Thursdays are the busiest travel days.
  2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
  3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
  4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
  5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
  6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Sky Harbor International Airport from Washington Dulles International Airport

Phoenix welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Washington Dulles International Airport is roughly a 40-minute drive (covering about 29 miles) from central Washington. Here's how to reach Phoenix efficiently:

  • Hotel transfer: Transfers offer a convenient way to reach your hotel in Phoenix, with private rides that can be arranged in advance.
  • Car rental: Renting a car from Sky Harbor International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Sky Harbor International Airport on Expedia.
  • Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
  • Public transportation: From Sky Harbor International Airport, the Terminal 3 Station, a metro station, is conveniently located about 0.1 miles away on foot, while the Phoenix Airport Bus Stop, a bus station, is just 0.2 miles away on foot, providing easy access to public transport options.

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 $120 and cheap return flights from $240 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, Sun Country Airlines, United
Roundtrip price
$240
Distance
1952 mi
Average flight time
3 hours 56 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 August. 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 $120 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.

*Available to One Key members.

 

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