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Dulles Intl

$144+ 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 6/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IAD
Jul 10 — Jul 171
Fri 7/10
Fri 7/17
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 June 10, 2026.

This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:28 pm
TUS
-
IAD
1 stop8h 06m
Delta
Tue 9/18:28 am
IAD
-
TUS
1 stop6h 50m
Delta
Deal found 6/8$259
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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.
Tue 7/1412:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Tue 7/219:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/5$270
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:25 pm
LAS
-
IAD
1 stop7h 20m
United Airlines
Sun 7/128:10 pm
IAD
-
LAS
Nonstop5h 09m
United Airlines
Deal found 6/9$274
This Frontier deal was found by Cheapflights users on 6/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:59 pm
LAS
-
IAD
1 stop7h 17m
Frontier
Sat 8/299:20 am
IAD
-
LAS
Nonstop4h 58m
Frontier
Deal found 6/8$275
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Fri 7/1712:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Tue 7/218:33 pm
IAD
-
LAS
1 stop26h 53m
Frontier
Deal found 6/4$276
This Frontier deal was found by Cheapflights users on 6/4. 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 6/2312:50 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Sat 7/119:30 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/4$277
This Expedia deal was found by Cheapflights users on 6/6. 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 8/312:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Wed 8/129:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/6$278
This Cheapflightsfares deal was found by Cheapflights users on 6/5. 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 8/1912:15 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Tue 8/259:20 am
IAD
-
LAS
Nonstop4h 58m
Frontier
Deal found 6/5$280
This Cheapflightsfares deal was found by Cheapflights users on 6/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2112:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Tue 7/289:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/8$283
This Delta deal was found by Cheapflights users on 6/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am
TUS
-
IAD
1 stop7h 42m
Delta
Wed 9/96:00 am
IAD
-
TUS
1 stop8h 37m
Delta
Deal found 6/8$285
This Frontier deal was found by Cheapflights users on 6/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Sat 7/119:30 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/8$286
This Kiwi.com deal was found by Cheapflights users on 6/5. 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.
Fri 8/712:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Mon 8/108:33 pm
IAD
-
LAS
2 stops28h 25m
Frontier
Deal found 6/5$287

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 June 10, 2026.

Round-trip from

$259
(Delta)

One-way from

$144
(Super.com)

Popular in

March

Cheapest in

August

Average price

$445

Good round-trip deal

$565 or less

Good one-way deal

$292 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. 10% potential increase in price ($46 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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.
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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 June 10, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 8/26

1:28 pm-12:34 am

1 stop8h 06m

Washington, D.C. Dulles Intl

Tue 9/8

10:05 am-9:08 pm

2 stops14h 03m

$264

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 7/10

2:25 pm-12:45 am

1 stop7h 20m

Washington, D.C. Dulles Intl

Sun 7/12

8:10 pm-10:19 pm

Nonstop5h 09m

$274
Quickest round-trip

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Mon 10/19

11:55 pm-7:28 am

Nonstop4h 33m

Washington, D.C. Dulles Intl

Sat 10/24

6:00 pm-8:08 pm

Nonstop5h 08m

$289

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 8/12

11:57 pm-7:30 am

Nonstop4h 33m

Washington, D.C. Dulles Intl

Thu 8/27

6:00 pm-8:08 pm

Nonstop5h 08m

$290

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 7/8

3:13 pm-6:45 pm

1 stop24h 32m

Washington, D.C. Dulles Intl

Mon 7/13

7:53 pm-12:23 pm

1 stop19h 30m

$324

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 8/13

2:26 pm-12:44 am

1 stop7h 18m

Washington, D.C. Dulles Intl

Tue 8/18

6:00 pm-7:54 pm

Nonstop4h 54m

$339

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Wed 7/29

4:00 pm-6:39 am

1 stop11h 39m

Washington, D.C. Dulles Intl

Mon 8/3

7:53 pm-12:23 pm

1 stop19h 30m

$349

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 7/8

11:11 am-6:45 pm

1 stop28h 34m

Washington, D.C. Dulles Intl

Tue 7/14

7:53 pm-10:31 am

1 stop17h 38m

$355

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 7/22

7:59 am-6:45 pm

1 stop7h 46m

Washington, D.C. Dulles Intl

Tue 7/28

7:53 pm-10:31 am

1 stop17h 38m

$355

TucsonWashington, D.C.

TUS - IAD

TUSIAD

Tucson

Wed 8/5

5:45 am-5:58 pm

1 stop9h 13m

Washington, D.C. Dulles Intl

Tue 8/11

6:15 am-11:13 am

1 stop7h 58m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 60 resultsSorted by cheapest first
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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, September is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $112). Flying from Arizona to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $257). 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 June 10, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 25% on flights from Arizona to Washington, D.C. Dulles Intl Airport by exploring options for tickets in the evening.

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 June 10, 2026.

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 (3 on average).

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

How far ahead should I book a flight from Arizona to Washington, D.C. Dulles Intl Airport?

To ensure you get the cheapest price possible for a flight from Arizona to Washington, D.C. Dulles Intl Airport, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 June 8, 2026.

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

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 $274, Delta can have you in Washington, D.C. Dulles Intl Airport from Arizona in 7h 20m. 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 $78. Southwest flights start at $126 while deals on Delta start at $128 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 (96%), Austrian Airlines (95%) or Brussels Airlines (95%) 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 $823 for a flight from Arizona to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $190 while the most popular route, (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) is currently priced at $249.

  • 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, September is the cheapest month in which you can book a flight from Arizona to Washington, D.C. Dulles Intl Airport (average of $112). Flying from Arizona to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $257). 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
Tysons
Owings Mills
Springfield
Arlington
Reston
Rockville
Herndon
Fredericksburg
Laurel
Hyattsville
Manassas
Hanover
Chantilly
Lanham
Falls Church
Waldorf
Silver Spring
Largo
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.
Dallas/Fort Worth to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Hobby to Baltimore flights
Dallas/Fort Worth to Reagan-National flights
Los Angeles to Reagan-National flights
Atlanta to Dulles Intl flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
Hobby to Reagan-National flights
Boston to Baltimore flights
Seattle to Dulles Intl flights
Atlanta to Baltimore flights
O'Hare Intl to Baltimore flights
San Francisco to Dulles Intl flights
Denver to Dulles Intl flights
O'Hare Intl to Reagan-National flights
Atlanta to Reagan-National flights
George Bush Intcntl to Baltimore flights
San Francisco to Reagan-National flights
Boston to Reagan-National flights
Boston to Dulles Intl flights
Seattle to Reagan-National flights
O'Hare Intl to Dulles Intl flights
San Francisco to Baltimore flights
Hobby to Dulles Intl flights
Seattle to Baltimore flights
George Bush Intcntl to Reagan-National flights
Denver to Baltimore flights
George Bush Intcntl to Dulles Intl flights
Tampa to Dulles Intl flights
Tampa to Baltimore flights
Fort Lauderdale to Dulles Intl flights
Orlando to Baltimore flights
Orlando to Dulles Intl flights
Ontario to Dulles Intl flights
Sky Harbor Intl to Dulles Intl flights
Minneapolis to Dulles Intl flights
Austin to Dulles Intl flights
Midway to Baltimore flights
Miami to Baltimore flights
Miami to Dulles Intl flights
San Diego to Dulles Intl flights
Orlando to Reagan-National flights
Denver to Reagan-National flights
Newark to Reagan-National flights
Austin to Reagan-National flights
Minneapolis to Reagan-National flights
Miami to Reagan-National flights
Detroit to Reagan-National flights
Newark to Dulles Intl 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 June 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$265FlexibilityNo cancel feeOn-time62%
DeltaCheapest$187Average$393FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$536FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$268Average$529FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$295Average$571FlexibilityNo cancel feeOn-time71%

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