Dulles Intl

$79+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IAD
Jun 17 — Jun 241
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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 June 12, 2025.

Round-trip from

$159
(United Airlines)

One-way from

$79
(Frontier)

Popular in

March

Cheapest in

August

Average price

$396

Good round-trip deal

$349 or less

Good one-way deal

$197 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, 0% 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 June 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/310:45 pmLAS - IAD
Nonstop4h 35mUnited Airlines
Sat 9/612:35 pmIAD - LAS
Nonstop5h 00mUnited Airlines
Deal found 6/11$159
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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 7/911:00 pmLAS - IAD
Nonstop4h 34mFrontier
Wed 7/167:30 amIAD - LAS
Nonstop4h 59mFrontier
Deal found 6/11$161
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/148:30 amLAS - IAD
1 stop7h 49mHawaiian Airlines
Sun 8/175:25 pmIAD - LAS
1 stop8h 34mHawaiian Airlines
Deal found 6/10$200
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:25 amLAS - IAD
1 stop6h 41mAlaska Airlines
Mon 11/35:51 pmIAD - LAS
1 stop8h 40mAlaska Airlines
Deal found 6/10$216
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/311:02 pmLAS - IAD
Nonstop4h 28mMultiple Airlines
Wed 7/910:10 pmIAD - LAS
Nonstop5h 04mMultiple Airlines
Deal found 6/11$222
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:17 pmPHX - IAD
1 stop8h 17mFrontier
Wed 8/67:30 amIAD - PHX
1 stop13h 57mFrontier
Deal found 6/10$254
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 7/31:11 pmLAS - IAD
1 stop7h 03mDelta
Sat 7/265:23 pmIAD - LAS
1 stop7h 17mDelta
Deal found 6/11$257
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 6/306:45 pmPHX - IAD
1 stop7h 39mUnited Airlines
Fri 7/46:35 amIAD - PHX
1 stop7h 34mUnited Airlines
Deal found 6/10$259
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/317:39 amPHX - IAD
1 stop27h 44mMultiple Airlines
Sun 8/31:28 pmIAD - PHX
1 stop12h 16mMultiple Airlines
Deal found 6/10$263
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:45 amLAS - IAD
2 stops11h 05mSouthwest
Tue 9/165:45 amIAD - LAS
2 stops12h 45mSouthwest
Deal found 6/10$273
This Sun Country Air deal was found by Cheapflights users on 6/11. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2911:08 amPHX - IAD
1 stop21h 35mSun Country Air
Sun 8/31:28 pmIAD - PHX
1 stop12h 16mSun Country Air
Deal found 6/11$275
This Delta deal was found by Cheapflights users on 6/10. 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.
Sat 8/166:05 amPHX - IAD
1 stop7h 25mDelta
Wed 8/206:00 amIAD - PHX
1 stop9h 27mDelta
Deal found 6/10$277

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 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

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 9/3

10:45 pm-6:20 am

Nonstop4h 35m

Washington, D.C. Dulles Intl

Sat 9/6

12:35 pm-2:35 pm

Nonstop5h 00m

$159

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 7/9

11:00 pm-6:34 am

Nonstop4h 34m

Washington, D.C. Dulles Intl

Wed 7/16

7:30 am-9:29 am

Nonstop4h 59m

$161

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 8/14

8:30 am-7:19 pm

1 stop7h 49m

Washington, D.C. Dulles Intl

Sun 8/17

5:25 pm-10:59 pm

1 stop8h 34m

$200

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 10/30

7:25 am-5:06 pm

1 stop6h 41m

Washington, D.C. Dulles Intl

Mon 11/3

5:51 pm-11:31 pm

1 stop8h 40m

$216

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 7/3

11:02 pm-6:30 am

Nonstop4h 28m

Washington, D.C. Dulles Intl

Wed 7/9

10:10 pm-12:14 am

Nonstop5h 04m

$222

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Fri 8/1

7:17 pm-6:34 am

1 stop8h 17m

Washington, D.C. Dulles Intl

Wed 8/6

7:30 am-6:27 pm

1 stop13h 57m

$254

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 7/3

1:11 pm-11:14 pm

1 stop7h 03m

Washington, D.C. Dulles Intl

Sat 7/26

5:23 pm-9:40 pm

1 stop7h 17m

$257

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Mon 6/30

6:45 pm-5:24 am

1 stop7h 39m

Washington, D.C. Dulles Intl

Fri 7/4

6:35 am-11:09 am

1 stop7h 34m

$259

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Thu 9/11

10:00 am-10:50 pm

2 stops9h 50m

Washington, D.C. Dulles Intl

Sun 9/14

4:05 pm-9:50 pm

1 stop8h 45m

$262

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

Thu 7/31

7:39 am-2:23 pm

1 stop27h 44m

Washington, D.C. Dulles Intl

Sun 8/3

1:28 pm-10:44 pm

1 stop12h 16m

$263

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

Showing 1-10 of 52 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 $309). Flying from Arizona to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 12, 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 June 12, 2025.

The most flights from USAZ to IAD are scheduled on a Tuesday (7 on average). You will have fewer flight options on Monday, 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 June 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta 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.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $79. United Airlines flights start at $80 while deals on Hawaiian Airlines start at $95 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 Lufthansa (84%), Southwest (82%) or United Airlines (80%) 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 $1,695 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 $239.

  • 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 July is currently the most expensive (average of $349). 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
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
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Fairfax
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Easton
Herndon
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$146Average$264FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$260Average$453FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$462FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$371FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$449FlexibilityNo cancel feeOn-time71%

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