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Dulles Intl

$113+ 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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IAD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/11. 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 12/3110:31 pmLAS - IAD
1 stop10h 07mFrontier
Sun 1/45:35 amIAD - LAS
1 stop13h 23mFrontier
Deal found 12/11$227
This Cheapflightsfares deal was found by Cheapflights users on 12/9. 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 12/2410:31 pmLAS - IAD
1 stop10h 07mFrontier
Tue 1/66:00 amIAD - LAS
1 stop13h 57mFrontier
Deal found 12/9$233
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/246:15 pmPHX - IAD
2 stops15h 23mFrontier
Sun 1/116:00 amIAD - PHX
1 stop11h 13mFrontier
Deal found 12/9$234
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/2411:35 pmPHX - IAD
Nonstop4h 15mUnited Airlines
Thu 1/15:40 pmIAD - PHX
Nonstop5h 12mUnited Airlines
Deal found 12/10$237
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/246:15 pmPHX - IAD
2 stops15h 23mFrontier
Mon 1/126:00 amIAD - PHX
1 stop11h 13mFrontier
Deal found 12/9$245
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 12/256:05 amLAS - IAD
1 stop9h 11mFrontier
Sat 1/311:04 amIAD - LAS
1 stop25h 38mFrontier
Deal found 12/10$251
This CheapOair deal was found by Cheapflights users on 12/11. 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 12/1112:52 pmLAS - IAD
1 stop7h 18mFrontier
Mon 1/59:58 pmIAD - LAS
1 stop14h 45mFrontier
Deal found 12/11$254
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 12/2510:01 pmLAS - IAD
1 stop12h 13mFrontier
Thu 1/15:35 amIAD - LAS
1 stop13h 23mFrontier
Deal found 12/10$257
This Delta deal was found by Cheapflights users on 12/10. 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.
Thu 12/252:00 pmPHX - IAD
1 stop6h 52mDelta
Wed 12/3112:32 pmIAD - PHX
1 stop8h 38mDelta
Deal found 12/10$257
This CheapOair deal was found by Cheapflights users on 12/9. 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.
Sat 12/206:05 amLAS - IAD
1 stop9h 11mFrontier
Fri 1/22:09 pmIAD - LAS
1 stop22h 33mFrontier
Deal found 12/9$259
This Delta deal was found by Cheapflights users on 12/11. 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.
Wed 12/242:33 pmPHX - IAD
1 stop6h 45mDelta
Thu 1/16:00 amIAD - PHX
1 stop7h 21mDelta
Deal found 12/11$260
This Kiwi.com deal was found by Cheapflights users on 12/8. 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.
Wed 12/2410:20 pmLAS - IAD
2 stops16h 56mFrontier
Wed 12/317:01 pmIAD - LAS
1 stop29h 51mFrontier
Deal found 12/8$266

Find 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 December 12, 2025.

Round-trip from

$209
(Kiwi.com)

One-way from

$113
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$398

Good round-trip deal

$438 or less

Good one-way deal

$219 or less
From Arizona to Washington, D.C. Dulles Intl
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One-way flight from Arizona to Washington, D.C. Dulles Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Arizona to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Arizona to Washington, D.C. Dulles Intl.
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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 December 12, 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

Wed 12/24

12:15 pm-11:18 pm

1 stop9h 03m

Washington, D.C. Dulles Intl

Wed 12/31

12:32 pm-7:10 pm

1 stop8h 38m

$257

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 1/15

11:00 am-11:10 pm

1 stop9h 10m

Washington, D.C. Dulles Intl

Tue 1/20

7:30 am-3:00 pm

1 stop10h 30m

$285

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 1/21

12:05 pm-11:10 pm

1 stop9h 05m

Washington, D.C. Dulles Intl

Sun 1/25

7:30 am-3:45 pm

1 stop10h 15m

$285

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 2/4

12:05 pm-11:10 pm

1 stop9h 05m

Washington, D.C. Dulles Intl

Sun 2/8

7:30 am-3:45 pm

1 stop10h 15m

$285

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 1/7

8:30 am-4:00 pm

Nonstop4h 30m

Washington, D.C. Dulles Intl

Wed 1/14

4:11 pm-9:59 pm

1 stop8h 48m

$287

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Mon 2/2

2:55 pm-11:10 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Sat 2/7

7:30 am-2:04 pm

1 stop32h 34m

$287

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 2/4

2:55 pm-11:10 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Sun 2/8

7:30 am-2:04 pm

1 stop32h 34m

$287

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Tue 2/3

2:55 pm-11:10 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Sat 2/7

7:30 am-2:04 pm

1 stop32h 34m

$287

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Fri 2/6

2:55 pm-11:10 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Sun 2/8

7:30 am-2:04 pm

1 stop32h 34m

$287

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 2/4

2:55 pm-11:10 pm

1 stop30h 15m

Washington, D.C. Dulles Intl

Mon 2/9

7:30 am-2:04 pm

1 stop32h 34m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

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, January is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $150). Flying from Arizona to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $249). 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 December 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 38% on flights from Arizona to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the evening.

What is the cheapest day to fly from Arizona to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Arizona to Dulles Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Arizona to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 2025.

The most flights from USAZ to IAD are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 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 $287, Delta can have you in Washington, D.C. Dulles Intl Airport from Arizona in 4h 30m. 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 Frontier, which is currently one of the cheapest options available, starting at $85. United Airlines flights start at $130 while deals on Alaska Airlines start at $138 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 (95%), United Airlines (91%) or Lufthansa (90%) 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 $968 for a flight from Arizona to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $153 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $180.

  • 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, January is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $150). Flying from Arizona to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $249). 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
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fredericksburg
Fairfax
Linthicum Heights
Manassas
Rockville
Laurel
Towson
National Harbor
Bowie
Largo
McLean
Clinton

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.
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Dallas/Fort Worth to Dulles Intl flights
Los Angeles to Reagan-National flights
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Boston to Baltimore flights
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Atlanta to Baltimore flights
San Francisco to Reagan-National flights
San Francisco to Baltimore flights
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O'Hare Intl to Baltimore flights
Boston to Reagan-National flights
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Denver to Baltimore flights
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Fort Lauderdale to Baltimore flights
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Seattle to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
Fort Lauderdale to Dulles Intl flights
Miami to Reagan-National flights
Tampa to Baltimore flights
Minneapolis to Dulles Intl flights
Orlando to Baltimore flights
John F Kennedy Intl to Dulles Intl flights
Minneapolis to Baltimore flights
Miami to Dulles Intl flights
John F Kennedy Intl to Reagan-National flights
Fort Lauderdale to Reagan-National flights
Tampa to Reagan-National flights
Seattle to Baltimore flights
Austin to Dulles Intl flights
Denver to Reagan-National flights
Ontario to Dulles Intl flights
Newark to Dulles Intl flights
Detroit to Baltimore flights
George Bush Intcntl to Baltimore flights

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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$146Average$261FlexibilityNo cancel feeOn-time62%
DeltaCheapest$188Average$347FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$234Average$455FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$264Average$434FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$412FlexibilityNo cancel feeOn-time71%

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