Dulles Intl

Cheap flights from Arizona to Dulles Intl (IAD) - Compare and Save

PHX — IAD
Oct 26 — Nov 21
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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 September 26, 2025.

Round-trip from

$156
(CheapOair)

One-way from

$113
(Trip.com)

Popular in

March

Cheapest in

August

Average price

$367

Good round-trip deal

$423 or less

Good one-way deal

$185 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 September 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 September 26, 2025.

This Frontier deal was found by Cheapflights users on 9/24. 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.
Fri 10/1712:55 amLAS - IAD
1 stop8h 04mFrontier
Mon 10/2710:04 amIAD - LAS
1 stop8h 52mFrontier
Deal found 9/24$156
This Frontier deal was found by Cheapflights users on 9/24. 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 10/2211:03 pmLAS - IAD
1 stop13h 35mFrontier
Mon 10/2710:04 amIAD - LAS
1 stop8h 52mFrontier
Deal found 9/24$160
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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 10/239:05 pmLAS - IAD
1 stop9h 04mFrontier
Mon 10/2710:04 amIAD - LAS
1 stop8h 52mFrontier
Deal found 9/25$164
This CheapOair deal was found by Cheapflights users on 9/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1712:55 amLAS - IAD
1 stop8h 04mFrontier
Fri 10/249:58 pmIAD - LAS
1 stop28h 54mFrontier
Deal found 9/24$166
This Cheapflightsfares deal was found by Cheapflights users on 9/24. 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 10/3012:44 pmLAS - IAD
1 stop7h 45mFrontier
Mon 11/38:36 pmIAD - LAS
1 stop16h 31mFrontier
Deal found 9/24$168
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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.
Wed 10/2211:03 pmLAS - IAD
1 stop13h 35mFrontier
Sat 10/2512:54 pmIAD - LAS
1 stop8h 27mFrontier
Deal found 9/25$169
This Frontier deal was found by Cheapflights users on 9/24. 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.
Thu 10/169:05 pmLAS - IAD
1 stop9h 04mFrontier
Sat 10/184:22 pmIAD - LAS
1 stop8h 26mFrontier
Deal found 9/24$170
This Cheapflightsfares deal was found by Cheapflights users on 9/25. 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 10/3012:44 pmLAS - IAD
1 stop7h 45mFrontier
Sun 11/25:00 amIAD - LAS
1 stop8h 34mFrontier
Deal found 9/25$173
This Cheapflightsfares deal was found by Cheapflights users on 9/26. 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 10/249:05 pmLAS - IAD
1 stop11h 54mFrontier
Sun 10/268:02 pmIAD - LAS
1 stop16h 33mFrontier
Deal found 9/26$174
This Frontier deal was found by Cheapflights users on 9/25. 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.
Thu 10/169:05 pmLAS - IAD
1 stop9h 04mFrontier
Fri 10/249:58 pmIAD - LAS
1 stop14h 29mFrontier
Deal found 9/25$176
This Cheapflightsfares deal was found by Cheapflights users on 9/26. 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 10/3012:44 pmLAS - IAD
1 stop7h 45mFrontier
Mon 11/38:36 pmIAD - LAS
1 stop16h 31mFrontier
Deal found 9/26$178
This CheapOair deal was found by Cheapflights users on 9/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:44 pmLAS - IAD
1 stop8h 27mFrontier
Sun 11/98:36 pmIAD - LAS
1 stop16h 31mFrontier
Deal found 9/26$180

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 September 26, 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

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Mon 10/20

11:57 am-4:42 pm

1 stop25h 45m

Washington, D.C. Dulles Intl

Tue 10/28

5:40 pm-10:16 pm

1 stop7h 36m

$259

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 10/29

7:01 am-5:13 pm

1 stop7h 12m

Washington, D.C. Dulles Intl

Fri 10/31

5:40 pm-5:02 pm

1 stop26h 22m

$280

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Tue 10/21

4:17 pm-4:42 pm

1 stop21h 25m

Washington, D.C. Dulles Intl

Fri 10/24

5:42 pm-9:44 am

1 stop19h 02m

$280

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 10/29

7:01 am-5:13 pm

1 stop7h 12m

Washington, D.C. Dulles Intl

Sun 11/2

5:40 pm-9:21 am

1 stop17h 41m

$280

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 10/22

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Thu 10/23

5:42 pm-10:39 pm

1 stop7h 57m

$280

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 10/15

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Mon 10/20

5:42 pm-10:39 pm

1 stop7h 57m

$280

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Mon 10/20

4:17 pm-4:42 pm

1 stop21h 25m

Washington, D.C. Dulles Intl

Thu 10/23

5:42 pm-10:39 pm

1 stop7h 57m

$280

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 10/15

6:00 am-4:42 pm

1 stop7h 42m

Washington, D.C. Dulles Intl

Fri 10/17

5:42 pm-9:44 am

1 stop19h 02m

$280

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 10/29

3:35 pm-6:23 am

1 stop11h 48m

Washington, D.C. Dulles Intl

Sat 11/1

7:43 am-10:57 pm

1 stop18h 14m

$298

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 10/29

3:35 pm-6:23 am

1 stop11h 48m

Washington, D.C. Dulles Intl

Sat 11/1

7:43 am-10:57 pm

1 stop18h 14m

$298

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 60 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, August is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $292). 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 September 26, 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 September 26, 2025.

The most flights from USAZ to IAD are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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.
  • How long is the flight from Arizona to Washington, D.C. Dulles Intl Airport?

    For as low as $280, Alaska Airlines can have you in Washington, D.C. Dulles Intl Airport from Arizona in 6h 48m. The distance between Arizona and Washington, D.C. Dulles Intl Airport is about 2059 mi. This flight may include one or multiple stops.

  • 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $130. Delta flights start at $160 while deals on Frontier start at $180 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 United Airlines (86%), Austrian Airlines (84%) or Brussels Airlines (84%) 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 $1,015 for a flight from Arizona to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $98 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $174.

  • 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 $292). 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
Springfield
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Laurel
Manassas
Hanover
Oxon Hill
Towson
National Harbor
Dundalk
Waldorf

Browse thousands of different options on Cheapflights for your next trip

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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 September 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$147Average$266FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$237Average$446FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$267Average$451FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$357FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$418FlexibilityNo cancel feeOn-time71%

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