HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$76+ Cheap flights from Arizona to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IAD
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Arizona to Dulles Intl with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Arizona to Dulles Intl

Keep the following information in mind while searching for Arizona to Dulles Intl flight deals. Data was last updated February 22, 2025.

Round-trip from

$177
(Kiwi.com)

One-way from

$76
(Booking.com)

Popular in

March

Cheapest in

September

Average price

$364

Good round-trip deal

$388 or less

Good one-way deal

$198 or less
From Arizona to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Arizona to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals
Price to beat on a round-trip flight from Arizona to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Arizona to Washington, D.C. Dulles Intl.
Search Deals

Find flight deals from Arizona to Dulles Intl

Cheapest flights from Arizona to Dulles Intl
Explore the most affordable flight options available from Arizona to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1010:51 pmLAS - IAD
1 stop7h 18mFrontier
Mon 3/176:03 pmIAD - LAS
1 stop31h 09mFrontier
Deal found 2/20$177
This Booking.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/311:49 pmPHX - IAD
1 stop7h 11mMultiple Airlines
Mon 4/76:35 amIAD - PHX
1 stop13h 07mMultiple Airlines
Deal found 2/21$229
This Frontier deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/136:16 pmPHX - IAD
1 stop9h 15mFrontier
Sat 5/2411:09 amIAD - PHX
1 stop13h 05mFrontier
Deal found 2/21$235
This Expedia deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1010:51 pmLAS - IAD
1 stop7h 18mMultiple Airlines
Wed 3/195:30 pmIAD - LAS
1 stop8h 21mMultiple Airlines
Deal found 2/21$244
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/183:25 pmPHX - IAD
1 stop11h 54mDelta
Tue 3/257:43 amIAD - PHX
1 stop11h 52mDelta
Deal found 2/21$283
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2011:40 pmLAS - IAD
Nonstop4h 21mUnited Airlines
Mon 3/245:55 pmIAD - LAS
Nonstop5h 34mUnited Airlines
Deal found 2/21$289
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/169:25 amPHX - IAD
Nonstop4h 20mSouthwest
Sat 4/194:00 pmIAD - PHX
Nonstop5h 00mSouthwest
Deal found 2/20$299
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/198:50 amPHX - IAD
Nonstop4h 12mUnited Airlines
Wed 3/2612:45 pmIAD - PHX
Nonstop5h 20mUnited Airlines
Deal found 2/21$300
This Alaska Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/207:06 amLAS - IAD
1 stop6h 52mAlaska Airlines
Mon 3/245:30 pmIAD - LAS
1 stop8h 21mAlaska Airlines
Deal found 2/21$308
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/146:15 amLAS - IAD
1 stop7h 08mDelta
Mon 3/175:14 pmIAD - LAS
1 stop7h 17mDelta
Deal found 2/21$309
This Sun Country Air deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/176:12 pmPHX - IAD
1 stop14h 18mSun Country Air
Mon 4/2111:37 amIAD - PHX
1 stop25h 35mSun Country Air
Deal found 2/21$310
This Alaska Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/113:20 pmPHX - IAD
1 stop11h 35mAlaska Airlines
Sun 9/146:55 pmIAD - PHX
1 stop17h 01mAlaska Airlines
Deal found 2/22$318

Find flights from Arizona to Dulles Intl within your budget

Customize your flight search to find flights from Arizona to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.

Fly from

Arizona

Fly to

Dulles Intl

Route

Depart

Return

Price

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Mon 3/10

10:51 pm-9:09 am

1 stop7h 18m

Washington, D.C. Dulles Intl

Mon 3/17

6:03 pm-10:12 pm

1 stop31h 09m

$177

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 4/3

11:49 pm-10:00 am

1 stop7h 11m

Washington, D.C. Dulles Intl

Mon 4/7

6:35 am-4:42 pm

1 stop13h 07m

$229

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 5/13

6:16 pm-6:31 am

1 stop9h 15m

Washington, D.C. Dulles Intl

Sat 5/24

11:09 am-9:14 pm

1 stop13h 05m

$235

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Mon 3/10

10:51 pm-9:09 am

1 stop7h 18m

Washington, D.C. Dulles Intl

Wed 3/19

5:30 pm-10:51 pm

1 stop8h 21m

$244

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 3/18

3:25 pm-6:19 am

1 stop11h 54m

Washington, D.C. Dulles Intl

Tue 3/25

7:43 am-4:35 pm

1 stop11h 52m

$283

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 3/20

11:40 pm-7:01 am

Nonstop4h 21m

Washington, D.C. Dulles Intl

Mon 3/24

5:55 pm-8:29 pm

Nonstop5h 34m

$289

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 4/16

9:25 am-4:45 pm

Nonstop4h 20m

Washington, D.C. Dulles Intl

Sat 4/19

4:00 pm-6:00 pm

Nonstop5h 00m

$299

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 3/19

8:50 am-4:02 pm

Nonstop4h 12m

Washington, D.C. Dulles Intl

Wed 3/26

12:45 pm-3:05 pm

Nonstop5h 20m

$300

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 3/20

7:06 am-4:58 pm

1 stop6h 52m

Washington, D.C. Dulles Intl

Mon 3/24

5:30 pm-10:51 pm

1 stop8h 21m

$308

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 3/14

6:15 am-4:23 pm

1 stop7h 08m

Washington, D.C. Dulles Intl

Mon 3/17

5:14 pm-9:31 pm

1 stop7h 17m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 53 results
1
2
3
...
6

Best time to book a flight from Arizona to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Arizona with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Arizona to Dulles Intl

Get recent, data-driven insights about flights from Arizona to Dulles Intl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Arizona to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Arizona to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AZ to IAD?

Find hourly flight availability from Arizona to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Arizona to Washington, D.C. Dulles Intl Airport as you normally would.

Weekly flight availability from Arizona to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Arizona to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 22, 2025.

The most flights from USAZ to IAD are scheduled on a Thursday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated February 22, 2025.
Get a feel of what it's like to fly with Southwest, Breeze Airways and Alaska Airlines from Arizona to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,396 reviews

Crew

8.7

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,396 reviews
Southwest
8.1
Very good
4,396 reviews

Crew

8.7

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Breeze Airways
8.1
Very good
150 reviews
Southwest
8.1
Very good
4,396 reviews

Crew

8.7

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,702 reviews
Southwest
8.1
Very good
4,396 reviews

Crew

8.7

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,203 reviews
Southwest
8.1
Very good
4,396 reviews

Crew

8.7

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,314 reviews
Southwest
8.1
Very good
4,396 reviews

Crew

8.7

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Arizona to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Arizona to Washington, D.C. Dulles Intl Airport one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $76. Sun Country Air flights start at $120 while deals on Breeze Airways start at $134 one-way.

  • What are the most popular routes from Arizona to Washington, D.C. Dulles Intl Airport?

    Most travelers choose Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl, Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl or Tucson - Washington, D.C. Dulles Intl when deciding on the best route from Arizona to Washington, D.C. Dulles Intl Airport.

  • What are the most reliable airlines from Arizona to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Arizona to Washington, D.C. Dulles Intl Airport consider choosing Avianca (93%), Lufthansa (92%) or United Airlines (92%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Arizona to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $1,305 for a flight from Arizona to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $149 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $214.

  • Can I find deals for flights from Arizona to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Arizona to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Arizona to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Arizona to Dulles Intl.

  • Can I find deals for business class flights from Arizona to Dulles Intl?

    Yes. Cheapflights offers flight deals from Arizona to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Arizona to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Arizona to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Arizona?

Book flights to Arizona if you plan to visit one of these locations
Arlington
Alexandria
Fairfax
Springfield
Rockville
Tysons
Gaithersburg
Silver Spring
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Woodbridge
Sterling
Easton
Herndon
Bowie
Reston
National Harbor
Oxon Hill

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Arizona to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Los Angeles to Baltimore flights
Boston to Dulles Intl flights
San Francisco to Dulles Intl flights
Seattle to Reagan-National flights
San Francisco to Reagan-National flights
O'Hare Intl to Dulles Intl flights
Dallas/Fort Worth to Reagan-National flights
O'Hare Intl to Reagan-National flights
Boston to Baltimore flights
Atlanta to Dulles Intl flights
Boston to Reagan-National flights
O'Hare Intl to Baltimore flights
Denver to Dulles Intl flights
Hobby to Baltimore flights
San Francisco to Baltimore flights
Seattle to Dulles Intl flights
Minneapolis to Reagan-National flights
Atlanta to Reagan-National flights
Hobby to Dulles Intl flights
Orlando to Dulles Intl flights
Seattle to Baltimore flights
George Bush Intcntl to Dulles Intl flights
Hobby to Reagan-National flights
Fort Lauderdale to Baltimore flights
Atlanta to Baltimore flights
Tampa to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Minneapolis to Baltimore flights
George Bush Intcntl to Baltimore flights
Denver to Reagan-National flights
Denver to Baltimore flights
Minneapolis to Dulles Intl flights
Tampa to Reagan-National flights
Charlotte to Dulles Intl flights
Detroit to Dulles Intl flights
Miami to Reagan-National flights
Austin to Dulles Intl flights
Miami to Baltimore flights
Detroit to Reagan-National flights
Detroit to Baltimore flights
Miami to Dulles Intl flights
Sky Harbor Intl to Dulles Intl flights
Portland to Reagan-National flights
Burbank to Baltimore flights
Portland to Dulles Intl flights
Tampa to Baltimore flights

Top 4 airlines flying from Arizona to Dulles Intl

Discover the top 4 airlines that operate flights from Arizona to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$225Average$460FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$260Average$461FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$508FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$294Average$465FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.