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$93+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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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 July 29, 2026.

This Frontier deal was found by Cheapflights users on 7/27. 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 8/179:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Wed 8/1912:30 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Deal found 7/27$163
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sat 8/159:30 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Tue 8/1812:30 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Deal found 7/27$165
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Sun 8/169:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Thu 8/2012:30 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Deal found 7/28$166
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 8/208:59 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Fri 8/2112:30 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Deal found 7/26$167
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/179:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Wed 8/267:36 am
LAS
-
IAD
2 stops30h 38m
Frontier
Deal found 7/27$168
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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.
Wed 8/198:59 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Tue 8/2512:30 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Deal found 7/26$169
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Thu 8/208:59 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Tue 8/257:36 am
LAS
-
IAD
2 stops30h 38m
Frontier
Deal found 7/29$170
This Frontier deal was found by Cheapflights users on 7/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:13 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Tue 8/2512:30 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Deal found 7/26$172
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Sun 8/169:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Wed 8/197:36 am
LAS
-
IAD
2 stops30h 38m
Frontier
Deal found 7/27$173
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Mon 8/248:59 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Tue 8/251:40 pm
LAS
-
IAD
2 stops24h 34m
Frontier
Deal found 7/27$174
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Mon 8/248:59 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Mon 8/317:36 am
LAS
-
IAD
2 stops30h 38m
Frontier
Deal found 7/28$175
This Alaska Airlines deal was found by Cheapflights users on 7/27. 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.
Fri 9/47:35 pm
IAD
-
PHX
1 stop18h 56m
Alaska Airlines
Sat 9/127:08 am
PHX
-
IAD
1 stop8h 06m
Alaska Airlines
Deal found 7/27$329

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 July 29, 2026.

Round-trip from

$163
(Frontier)

One-way from

$93
(Kiwi.com)

Popular in

March

Cheapest in

January

Average price

$495

Good round-trip deal

$429 or less

Good one-way deal

$215 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. 6% potential increase in price ($31 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 July 2026
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.
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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 July 29, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 8/28

3:02 pm-7:29 pm

1 stop7h 27m

Las Vegas Harry Reid Intl

Mon 8/31

11:57 pm-7:30 am

Nonstop4h 33m

$229

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 8/26

12:55 pm-2:59 pm

Nonstop5h 04m

Las Vegas Harry Reid Intl

Fri 8/28

11:57 pm-7:30 am

Nonstop4h 33m

$239

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 8/26

5:47 pm-10:17 pm

1 stop7h 30m

Las Vegas Harry Reid Intl

Sun 8/30

11:45 pm-9:20 am

1 stop6h 35m

$257

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 8/28

5:47 pm-10:17 pm

1 stop7h 30m

Las Vegas Harry Reid Intl

Sat 9/5

8:16 am-8:05 pm

1 stop8h 49m

$263

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 9/23

6:07 pm-11:36 pm

1 stop8h 29m

Las Vegas Harry Reid Intl

Sat 9/26

11:01 pm-9:09 am

1 stop7h 08m

$269

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 8/9

5:25 pm-9:59 pm

1 stop7h 34m

Las Vegas Harry Reid Intl

Fri 8/14

6:20 am-6:09 pm

1 stop8h 49m

$269

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 8/29

5:47 pm-11:05 pm

1 stop8h 18m

Las Vegas Harry Reid Intl

Thu 9/3

11:30 pm-11:49 am

1 stop9h 19m

$273

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 10/5

3:15 pm-8:48 pm

1 stop8h 33m

Las Vegas Harry Reid Intl

Wed 10/7

10:10 pm-9:12 am

1 stop8h 02m

$279

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 10/23

12:31 pm-6:21 pm

1 stop8h 50m

Las Vegas Harry Reid Intl

Mon 10/26

11:40 pm-10:17 am

1 stop7h 37m

$279

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 8/17

6:00 pm-8:08 pm

Nonstop5h 08m

Las Vegas Harry Reid Intl

Wed 8/26

8:20 am-3:58 pm

Nonstop4h 38m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 60 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Arizona (average of $424). Flying from Washington, D.C. Dulles Intl Airport to Arizona in March is currently the most expensive (average of $573). 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 July 29, 2026.

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 in the afternoon could potentially save you up to 16% on airfare.

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 July 29, 2026.

The most flights from IAD to USAZ are scheduled on a Monday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (5 on average).

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

Airfare is typical for this route at the moment.
Washington, D.C. Dulles Intl Airport to Arizona flights typically cost between $329 and $536 in September.
The cheapest round-trip price found within the last 5 days was $329 on Alaska Airlines (Sep 4-Sep 12).

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Arizona may vary depending on when you book. For the best chance of a lower fare, look to book 61 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 July 25, 2026.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Arizona flight should consider departing on Tuesday 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.

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 July 29, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
8.0
Very good
4,228 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Southwest
8.0
Very good
4,228 reviews
Southwest
8.0
Very good
4,228 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Delta
7.8
Good
8,486 reviews
Southwest
8.0
Very good
4,228 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
United Airlines
7.4
Good
10,052 reviews
Southwest
8.0
Very good
4,228 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
American Airlines
7.1
Good
11,839 reviews
Southwest
8.0
Very good
4,228 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Frontier
5.6
Fair
2,749 reviews
Southwest
8.0
Very good
4,228 reviews

Entertainment

7.5

Food

7.0

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

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 7h 27m. The distance between Washington, D.C. Dulles Intl Airport and Arizona is about 2059 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?

    $74 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Alaska Airlines and Southwest, with prices starting from $108 and $113, 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 (94%), Austrian Airlines (82%), Avianca (82%).

  • 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 $159. On average you can expect to pay $488. The most popular route, (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl), can usually be booked for $158.

  • 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Arizona (average of $424). Flying from Washington, D.C. Dulles Intl Airport to Arizona in March is currently the most expensive (average of $573). 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

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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 Dallas/Fort Worth flights
Dulles Intl to Seattle flights
Dulles Intl to Las Vegas flights
Dulles Intl to Orlando flights
Baltimore to O'Hare Intl flights
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Miami flights
Reagan-National to Seattle flights
Reagan-National to Miami flights
Baltimore to Las Vegas flights
Reagan-National to Dallas/Fort Worth flights
Baltimore to Orlando flights
Reagan-National to Los Angeles flights
Reagan-National to Orlando flights
Baltimore to Los Angeles flights
Baltimore to Hobby flights
Baltimore to Fort Lauderdale flights
Reagan-National to O'Hare Intl flights
Dulles Intl to Denver flights
Reagan-National to Boston flights
Baltimore to Denver flights
Dulles Intl to Fort Lauderdale flights
Baltimore to Seattle flights
Baltimore to Miami flights
Dulles Intl to Boston flights
Dulles Intl to O'Hare Intl flights
Reagan-National to Las Vegas flights
Baltimore to Boston flights
Dulles Intl to Atlanta flights
Dulles Intl to San Francisco flights
Reagan-National to San Francisco flights
Baltimore to San Francisco flights
Dulles Intl to Los Angeles flights
Dulles Intl to Tampa flights
Dulles Intl to San Diego flights
Dulles Intl to Hobby flights
Baltimore to Atlanta flights
Dulles Intl to Midway flights
Reagan-National to Hobby flights
Reagan-National to Fort Lauderdale flights
Reagan-National to Minneapolis flights
Reagan-National to Atlanta flights
Baltimore to George Bush Intcntl flights
Dulles Intl to Sky Harbor Intl flights
Dulles Intl to Austin flights
Baltimore to Tampa flights
Dulles Intl to George Bush Intcntl flights
Reagan-National to Nashville flights
Reagan-National to Denver flights
Dulles Intl to Minneapolis flights

Top 6 airlines flying from Dulles Intl to Arizona

Discover the top 6 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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$171Average$281FlexibilityNo cancel feeOn-time62%
DeltaCheapest$243Average$443FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$252Average$326FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$277Average$499FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$291Average$471FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$376Average$579FlexibilityNo cancel feeOn-time71%

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