Dulles Intl

$87+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IAD
Aug 4 — Aug 111
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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 July 30, 2025.

Round-trip from

$163
(Cheapflightsfares)

One-way from

$87
(Cheapflightsfares)

Popular in

March

Cheapest in

August

Average price

$378

Good round-trip deal

$357 or less

Good one-way deal

$213 or less
From Arizona to Washington, D.C. Dulles Intl
One-way flight from Arizona to Washington, D.C. Dulles Intl
High demand for flights, 1% potential price rise
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Arizona to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Arizona to Washington, D.C. Dulles Intl.

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 July 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1511:00 pmLAS - IAD
Nonstop4h 34mFrontier
Mon 8/187:30 amIAD - LAS
Nonstop4h 59mFrontier
Deal found 7/30$163
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/1710:45 pmLAS - IAD
Nonstop4h 35mUnited Airlines
Sun 9/217:59 pmIAD - LAS
Nonstop4h 59mUnited Airlines
Deal found 7/28$181
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amLAS - IAD
1 stop8h 13mHawaiian Airlines
Mon 11/35:40 pmIAD - LAS
1 stop8h 53mHawaiian Airlines
Deal found 7/30$200
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/57:47 pmLAS - IAD
1 stop18h 05mAlaska Airlines
Mon 9/85:52 pmIAD - LAS
1 stop8h 34mAlaska Airlines
Deal found 7/29$201
This Frontier deal was found by Cheapflights users on 7/30. 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.
Wed 8/67:17 pmPHX - IAD
1 stop8h 17mFrontier
Wed 8/137:30 amIAD - PHX
1 stop13h 57mFrontier
Deal found 7/30$238
This FlightHub deal was found by Cheapflights users on 7/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2010:56 pmLAS - IAD
Nonstop4h 34mMultiple Airlines
Sun 8/2412:06 pmIAD - LAS
1 stop8h 13mMultiple Airlines
Deal found 7/28$249
This Delta deal was found by Cheapflights users on 7/28. 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 8/228:40 amLAS - IAD
1 stop6h 55mDelta
Sun 8/246:00 amIAD - LAS
1 stop7h 24mDelta
Deal found 7/28$257
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:59 pmPHX - IAD
1 stop14h 59mSun Country Air
Sun 11/212:50 pmIAD - PHX
1 stop12h 55mSun Country Air
Deal found 7/30$270
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:02 amPHX - IAD
1 stop9h 44mMultiple Airlines
Sun 10/198:13 pmIAD - PHX
2 stops17h 43mMultiple Airlines
Deal found 7/29$275
This Southwest deal was found by Cheapflights users on 7/29. 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.
Thu 8/219:25 pmLAS - IAD
1 stop12h 55mSouthwest
Wed 8/274:55 pmIAD - LAS
1 stop9h 20mSouthwest
Deal found 7/29$279
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:00 amPHX - IAD
1 stop7h 47mHawaiian Airlines
Wed 9/35:52 pmIAD - PHX
1 stop7h 34mHawaiian Airlines
Deal found 7/30$282
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 8/221:28 pmPHX - IAD
Nonstop4h 21mUnited Airlines
Sun 8/245:26 pmIAD - PHX
Nonstop4h 49mUnited Airlines
Deal found 7/27$287

Cheapflights Fare Finder

 
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 July 30, 2025.
Use the filters below to find and compare flights from Arizona to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Arizona

Fly to

Dulles Intl

Route

Depart

Return

Price

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 8/15

11:00 pm-6:34 am

Nonstop4h 34m

Washington, D.C. Dulles Intl

Mon 8/18

7:30 am-9:29 am

Nonstop4h 59m

$163

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 9/17

10:45 pm-6:20 am

Nonstop4h 35m

Washington, D.C. Dulles Intl

Sun 9/21

7:59 pm-9:58 pm

Nonstop4h 59m

$181

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 10/30

6:00 am-5:13 pm

1 stop8h 13m

Washington, D.C. Dulles Intl

Mon 11/3

5:40 pm-11:33 pm

1 stop8h 53m

$200

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 9/5

7:47 pm-4:52 pm

1 stop18h 05m

Washington, D.C. Dulles Intl

Mon 9/8

5:52 pm-11:26 pm

1 stop8h 34m

$201

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 8/6

7:17 pm-6:34 am

1 stop8h 17m

Washington, D.C. Dulles Intl

Wed 8/13

7:30 am-6:27 pm

1 stop13h 57m

$238

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 8/28

6:25 pm-12:33 pm

1 stop15h 08m

Washington, D.C. Dulles Intl

Mon 9/1

8:00 am-9:59 am

Nonstop4h 59m

$242

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 8/22

8:40 am-6:35 pm

1 stop6h 55m

Washington, D.C. Dulles Intl

Sun 8/24

6:00 am-10:24 am

1 stop7h 24m

$257

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 10/17

8:02 am-8:46 pm

1 stop9h 44m

Washington, D.C. Dulles Intl

Sun 10/19

8:13 pm-10:56 am

2 stops17h 43m

$275

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 8/21

9:25 pm-1:20 pm

1 stop12h 55m

Washington, D.C. Dulles Intl

Wed 8/27

2:25 pm-6:05 pm

1 stop6h 40m

$279

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 8/27

6:00 am-4:47 pm

1 stop7h 47m

Washington, D.C. Dulles Intl

Wed 9/3

5:52 pm-10:26 pm

1 stop7h 34m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 48 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Arizona to Washington, D.C. Dulles Intl Airport

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

Currently, July is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Arizona to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 July 30, 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 July 30, 2025.

The most flights from USAZ to IAD are scheduled on a Monday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).

How much does it cost to fly round-trip from Arizona to Washington, D.C. Dulles Intl Airport?

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 July 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Arizona to Washington, D.C. Dulles Intl Airport have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
8.0
Very good

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 $87. United Airlines flights start at $91 while deals on Alaska Airlines start at $106 one-way.

  • What are the most popular routes 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 Southwest (84%), Austrian Airlines (66%) or Brussels Airlines (66%) 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 $1,700 for a flight from Arizona to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $119 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $258.

  • 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, July is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Arizona to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
Bowie

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Alternative routes for Arizona to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Arizona to Dulles Intl

Discover the top 5 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$147Average$262FlexibilityNo cancel feeOn-time62%
DeltaCheapest$244Average$366FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$253Average$448FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$262Average$460FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$326Average$418FlexibilityNo cancel feeOn-time71%

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