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CA $232 Cheap Flights from Phoenix (PHX) to Washington (IAD)

View CA $232 flight on Tue, Oct 6, 2026Opens in a new window

Flight 1

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

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Cheap flights from Phoenix (PHX) to Washington (IAD)

Prices were available within the past 7 days and start at CA $232 for one-way flights and CA $454 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Nov 12 - Thu, Dec 3
PHX
Phoenix
IAD
Washington
CA $454 Roundtrip, found 1 day ago
CA $454
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Nov 12 from Phoenix to Washington, returning Thu, Dec 3, priced at CA $454 found 1 day ago
Alaska Airlines
Tue, Oct 20 - Sat, Oct 31
PHX
Phoenix
IAD
Washington
CA $459 Roundtrip, found 1 day ago
CA $459
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Tue, Oct 20 from Phoenix to Washington, returning Sat, Oct 31, priced at CA $459 found 1 day ago
Alaska Airlines
Wed, Oct 14 - Sat, Oct 24
PHX
Phoenix
IAD
Washington
CA $464 Roundtrip, found 1 day ago
CA $464
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Oct 14 from Phoenix to Washington, returning Sat, Oct 24, priced at CA $464 found 1 day ago
Alaska Airlines
Fri, Oct 16 - Sat, Oct 31
PHX
Phoenix
IAD
Washington
CA $465 Roundtrip, found 1 day ago
CA $465
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Oct 16 from Phoenix to Washington, returning Sat, Oct 31, priced at CA $465 found 1 day ago
Alaska Airlines
Wed, Sep 16 - Wed, Sep 23
PHX
Phoenix
IAD
Washington
CA $467 Roundtrip, just found
CA $467
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Sep 16 from Phoenix to Washington, returning Wed, Sep 23, priced at CA $467 just found
Alaska Airlines
Tue, Nov 17 - Thu, Dec 3
PHX
Phoenix
IAD
Washington
CA $474 Roundtrip, found 2 days ago
CA $474
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Nov 17 from Phoenix to Washington, returning Thu, Dec 3, priced at CA $474 found 2 days ago
American Airlines
Fri, Sep 25 - Wed, Sep 30
PHX
Phoenix
IAD
Washington
CA $494 Roundtrip, found 1 day ago
CA $494
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Sep 25 from Phoenix to Washington, returning Wed, Sep 30, priced at CA $494 found 1 day ago
Delta
Sun, Nov 22 - Thu, Dec 10
PHX
Phoenix
IAD
Washington
CA $494 Roundtrip, found 1 day ago
CA $494
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Nov 22 from Phoenix to Washington, returning Thu, Dec 10, priced at CA $494 found 1 day ago
United
Fri, Dec 4 - Wed, Dec 9
PHX
Phoenix
IAD
Washington
CA $605 Roundtrip, found 2 days ago
CA $605
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 4 from Phoenix to Washington, returning Wed, Dec 9, priced at CA $605 found 2 days ago
Sun Country Airlines
Thu, Oct 15 - Mon, Oct 19
PHX
Phoenix
IAD
Washington
CA $685 Roundtrip, found 6 days ago
CA $685
Roundtrip
found 6 days ago
Select Sun Country Airlines flight, departing Thu, Oct 15 from Phoenix to Washington, returning Mon, Oct 19, priced at CA $685 found 6 days ago

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city centre is 8 minutes. Flights from CA $1,151
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city centre8 min
Flights from CA $1,151

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

September is typically the cheapest month to fly

From CA $336 - CA $501 per traveller.

Frequently asked questions

How much does a flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) cost?
You can find cheap one-way flights from CA $232 and cheap return flights from CA $454 PHX to IAD with Expedia. One-way flights typically cost between CA$406 and CA$1230, and return flights often range between CA$863 and CA$2092. 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 PHX to IAD ticket fares go up or down.
What is the cheapest month to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The cheapest months to fly from PHX to IAD are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
There are 2 airlines offering direct flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.). Here are the carriers:
  • United operates 10 direct flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) every week.
  • Southwest Airlines operates 7 direct flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) every week.
What is the cheapest airline that flies from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
United is one of the cheapest airlines offering nonstop return flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.), with tickets starting from around CA$275 for flights that can be booked for departure within the next year. Sun Country Airlines offers one of the cheapest connecting return flights on this route, with tickets starting from around CA$487. These prices are per adult for economy/coach class. 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.
How do I find cheap flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
To find a cheap flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best airline to fly with from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United offers the most daily flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.), 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll find approximately 2 nonstop flights per day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.). For even more choices, look at flights that include layovers, as there are around 105 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA), Los Angeles Intl. (LAX), and Denver Intl. (DEN).
What is the earliest flight from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The earliest flight from Phoenix Sky Harbor International Airport (PHX) to Washington Dulles International Airport (IAD) typically departs around 12:10 AM local time. This flight is operated by American Airlines and is a seasonal service, active only in May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You'll generally find the most flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) on a Thursday, with around 79 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Alaska Airlines, and American Airlines. Flight schedules are quite consistent throughout the week, so you'll have plenty of options regardless of your travel day.
What are the most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
The most popular departure times for flights from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are in the early morning, from 6am to 9am. Many major carriers, including United, American Airlines and Delta, offer flights during this window. Many travellers prefer these times because they can get an early start to their travel day and arrive at their destination with plenty of time left.
How long does it take to fly from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
A nonstop flight from PHX to IAD typically takes around 4 hours 20 minutes, covering approximately 3,143 kilometers. Connecting flights on this route usually add 4 hours 10 minutes to your travel time. 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
You can fly business class or first class between PHX and IAD. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.
How do I earn miles on a Phoenix, AZ (PHX) to Washington, DC (IAD) flight with Expedia?
It's easy to earn miles on a Phoenix, AZ (PHX) to Washington, DC (IAD) 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 Washington, DC (IAD) from Phoenix, AZ (PHX)?
If you're planning to travel to Washington from Sky Harbor Intl. (PHX), you can fly directly into Washington Dulles Intl. (IAD). Some flights may connect through major hubs like Portland Intl. (PDX), San Diego Intl. (SAN), or Boise, ID (BOI) before reaching Washington. 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 Phoenix, AZ (PHX) to Washington, DC (IAD) at the last minute?
Typically, booking a last minute flight from Phoenix, AZ (PHX) to Washington, DC (IAD) 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 Phoenix, AZ (PHX) to Washington, DC (IAD) flight and hotel package?
Securing a Phoenix, AZ (PHX) to Washington, DC (IAD) flight and hotel package 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 Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.)?
If you booked your Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles 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
Sky Harbor Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
CA $453
Distance
3123 km
Average flight time
8 hours 54 mins

Book with confidence

Phoenix to Chantilly Flights

The easy way to book your flights from Phoenix to Washington 

With Expedia, it’s simple to find and book flights to Washington from Phoenix whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Washington Dulles Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Phoenix to Washington today, tomorrow, or this week.  

 

Save dollars with cheap flights from Sky Harbor Intl., PHX to Washington Dulles Intl., IAD 

Sort your search results by price to find great deals on your flight from Phoenix to Washington—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Washington from Phoenix currently is just CA $454 rising to CA $685.  

Here are more money-saving tips: 

  • Fly in November when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Washington  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Washington from Phoenix 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Washington with Expedia today.

Phoenix to Chantilly Flights

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