HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Arizona

$97+ Cheap flights from Dulles Intl (IAD) to Arizona

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Arizona with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Arizona

Cheapest flights from Dulles Intl to Arizona
Explore the most affordable flight options available from Dulles Intl to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:58 pmIAD - LAS
1 stop14h 45mFrontier
Wed 1/710:58 pmLAS - IAD
1 stop9h 30mFrontier
Deal found 12/10$253
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/139:20 pmIAD - LAS
1 stop15h 23mFrontier
Thu 12/256:05 amLAS - IAD
1 stop9h 11mFrontier
Deal found 12/10$258
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:58 pmIAD - LAS
1 stop14h 45mFrontier
Thu 12/2510:01 pmLAS - IAD
1 stop12h 13mFrontier
Deal found 12/10$259
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:35 amIAD - LAS
1 stop13h 23mFrontier
Thu 1/159:47 amLAS - IAD
1 stop7h 17mFrontier
Deal found 12/11$270
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 12/317:01 pmIAD - LAS
1 stop28h 52mMultiple Airlines
Mon 1/510:02 pmLAS - IAD
2 stops10h 26mMultiple Airlines
Deal found 12/9$271
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:58 pmIAD - LAS
1 stop14h 45mFrontier
Sat 1/1010:58 pmLAS - IAD
1 stop9h 30mFrontier
Deal found 12/10$274
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/248:00 amIAD - PHX
1 stop27h 44mMultiple Airlines
Tue 1/67:39 pmPHX - IAD
2 stops19h 11mMultiple Airlines
Deal found 12/10$280
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/139:20 pmIAD - LAS
1 stop15h 23mFrontier
Wed 12/2410:31 pmLAS - IAD
1 stop10h 07mFrontier
Deal found 12/10$284
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:58 pmIAD - LAS
1 stop14h 45mFrontier
Fri 1/910:58 pmLAS - IAD
1 stop9h 30mFrontier
Deal found 12/10$288
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:32 pmIAD - PHX
1 stop8h 38mDelta
Wed 1/712:05 pmPHX - IAD
1 stop9h 05mDelta
Deal found 12/9$290
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 12/318:16 amIAD - PHX
Nonstop5h 16mUnited Airlines
Wed 1/78:30 amPHX - IAD
Nonstop4h 18mUnited Airlines
Deal found 12/10$292
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/229:58 pmIAD - LAS
1 stop14h 45mFrontier
Wed 12/3110:31 pmLAS - IAD
1 stop10h 07mFrontier
Deal found 12/10$298

Find flight deals from Dulles Intl to Arizona

Keep the following information in mind while searching for Dulles Intl to Arizona flight deals. Data was last updated December 12, 2025.

Round-trip from

$224
(Frontier)

One-way from

$97
(Expedia)

Popular in

April

Cheapest in

August

Average price

$467

Good round-trip deal

$394 or less

Good one-way deal

$223 or less
From Washington, D.C. Dulles Intl to Arizona
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Arizona
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Arizona.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Arizona.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Arizona 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 Washington, D.C. Dulles Intl Airport to Arizona that are best for you.

Fly from

Dulles Intl

Fly to

Arizona

Route

Depart

Return

Price

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 1/9

8:40 am-10:08 am

1 stop28h 28m

Las Vegas Harry Reid Intl

Mon 1/12

11:33 pm-11:43 am

1 stop9h 10m

$238

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sun 1/18

4:30 pm-7:50 pm

Nonstop5h 20m

Phoenix Sky Harbor Intl

Tue 1/27

6:00 am-3:50 pm

1 stop7h 50m

$271

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 2/18

12:38 pm-7:43 pm

1 stop9h 05m

Phoenix Sky Harbor Intl

Tue 2/24

12:01 pm-11:10 pm

1 stop9h 09m

$284

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 2/11

7:30 am-3:00 pm

1 stop10h 30m

Las Vegas Harry Reid Intl

Sat 2/14

11:06 am-11:15 pm

1 stop9h 09m

$285

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 2/10

7:30 am-3:00 pm

1 stop10h 30m

Las Vegas Harry Reid Intl

Sat 2/14

11:06 am-11:15 pm

1 stop9h 09m

$285

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 1/7

4:30 pm-7:50 pm

Nonstop5h 20m

Phoenix Sky Harbor Intl

Sun 1/18

10:50 am-4:50 pm

Nonstop4h 00m

$292

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 1/10

7:00 am-10:15 am

Nonstop5h 15m

Phoenix Sky Harbor Intl

Sat 1/17

8:55 am-2:55 pm

Nonstop4h 00m

$295

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 1/21

7:30 am-5:35 pm

1 stop12h 05m

Phoenix Sky Harbor Intl

Fri 1/30

12:05 pm-11:10 pm

1 stop9h 05m

$305

Washington, D.C.Tucson

IAD - TUS

IADTUS

Washington, D.C. Dulles Intl

Tue 2/3

6:04 pm-3:30 pm

1 stop23h 26m

Tucson

Fri 2/6

6:00 am-4:26 pm

1 stop32h 26m

$324

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 2/4

7:30 am-5:35 pm

1 stop12h 05m

Phoenix Sky Harbor Intl

Fri 2/6

12:05 pm-11:10 pm

1 stop9h 05m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Dulles Intl to Arizona

Have a flexible travel schedule? Discover the best time to fly to Arizona from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Arizona

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

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Arizona (average of $158). Flying from Washington, D.C. Dulles Intl Airport to Arizona in April is currently the most expensive (average of $287). 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 IAD to AZ?

Find hourly flight availability from Dulles Intl to Arizona. 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.

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Arizona is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 23% on airfare.

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

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

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

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Arizona

Explore weekly flight availability from Dulles Intl to Arizona. 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 IAD to USAZ are scheduled on a Wednesday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Arizona

Get insights into the airlines that provide service to Arizona. 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 Arizona. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Washington, D.C. Dulles Intl Airport to Arizona by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

7.9

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Arizona. 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 Washington, D.C. Dulles Intl Airport to Arizona?

    Departing from Washington, D.C. Dulles Intl Airport to Arizona will take you 5h 20m. The distance between Washington, D.C. Dulles Intl Airport and Arizona is about 1950 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Arizona one-way?

    $105 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Southwest and Alaska Airlines, with prices starting from $113 and $138, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Arizona?

    The most popular route from Washington, D.C. Dulles Intl Airport to Arizona is Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl. You may also consider Washington, D.C. Dulles Intl - Phoenix Sky Harbor Intl or Washington, D.C. Dulles Intl - Tucson.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Arizona?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Arizona on time: United Airlines (84%), Avianca (75%), Austrian Airlines (73%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Arizona?

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Arizona is $128. On average you can expect to pay $575. The most popular route, (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl), can usually be booked for $124.

  • Can I find deals for flights from Dulles Intl to Arizona that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Arizona flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Arizona?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Arizona.

  • Can I find deals for business class flights from Dulles Intl to Arizona?

    Yes. Cheapflights offers flight deals from Dulles Intl to Arizona 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 Washington, D.C. Dulles Intl Airport to Arizona?

    Currently, July is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Arizona (average of $158). Flying from Washington, D.C. Dulles Intl Airport to Arizona in April is currently the most expensive (average of $287). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Arizona

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Miami flights
Reagan-National to Miami flights
Baltimore to Fort Lauderdale flights
Baltimore to Miami flights
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Las Vegas flights
Dulles Intl to Dallas/Fort Worth flights
Dulles Intl to Orlando flights
Reagan-National to Los Angeles flights
Dulles Intl to Los Angeles flights
Dulles Intl to Fort Lauderdale flights
Reagan-National to Fort Lauderdale flights
Baltimore to Los Angeles flights
Reagan-National to Orlando flights
Baltimore to Las Vegas flights
Reagan-National to Las Vegas flights
Dulles Intl to Tampa flights
Dulles Intl to Atlanta flights
Baltimore to Orlando flights
Reagan-National to Dallas/Fort Worth flights
Baltimore to Atlanta flights
Dulles Intl to Sky Harbor Intl flights
Baltimore to Hobby flights
Baltimore to Denver flights
Dulles Intl to Seattle flights
Reagan-National to Seattle flights
Dulles Intl to Hobby flights
Baltimore to O'Hare Intl flights
Dulles Intl to Denver flights
Reagan-National to Atlanta flights
Dulles Intl to O'Hare Intl flights
Reagan-National to O'Hare Intl flights
Reagan-National to Hobby flights
Dulles Intl to New Orleans flights
Dulles Intl to Salt Lake City flights
Baltimore to Sky Harbor Intl flights
Baltimore to Tampa flights
Reagan-National to New Orleans flights
Dulles Intl to Portland flights
Dulles Intl to John F Kennedy Intl flights
Baltimore to West Palm Beach flights
Dulles Intl to San Francisco flights
Reagan-National to John F Kennedy Intl flights
Reagan-National to Salt Lake City flights
Dulles Intl to George Bush Intcntl flights
Reagan-National to San Francisco flights
Reagan-National to Sky Harbor Intl flights
Reagan-National to Tampa flights
Reagan-National to LaGuardia flights
Baltimore to Boston flights

Top 5 airlines flying from Dulles Intl to Arizona

Discover the top 5 airlines that operate flights from Dulles Intl to Arizona. 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$148Average$261FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$269Average$389FlexibilityNo cancel feeOn-time63%
DeltaCheapest$276Average$363FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$277Average$455FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$312Average$518FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.