How long is the flight from Washington, D.C. Dulles Intl Airport to Phoenix?

United Airlines and Delta can get you from Washington, D.C. Dulles Intl Airport to Phoenix in just under 5h 13m. Your travel time can differ by up to 3h 04m. There are 1950 mi between Washington, D.C. Dulles Intl Airport and Phoenix. This flight may include one or multiple stops.

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Phoenix round-trip?

According to our current data, Frontier ($148), Sun Country Air ($265), and Southwest ($268) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Phoenix. Frontier is currently priced 63% below the average price you’ll pay for this route.

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

For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $137. Users have also found prices from $137 and $139 on Hawaiian Airlines and Delta, respectively.

In terms of precipitation, rainfall in Phoenix ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Phoenix when rainfall is around 0.0 in.

If weather is an important factor for your trip to Phoenix, 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 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

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

While on average a flight from Washington, D.C. Dulles Intl Airport to Phoenix is generally $806, our data shows the cheapest flight currently is $103. When looking at the most popular route, (Washington, D.C. Dulles Intl - Phoenix Sky Harbor Intl), you can expect to pay $165 for that flight.

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

The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Phoenix are United Airlines (83%), Avianca (78%) and Austrian Airlines (66%).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Phoenix?

When booking a flight from Washington, D.C. Dulles Intl Airport to Phoenix, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What is the cheapest day to fly round-trip from Washington, D.C. Dulles Intl Airport to Phoenix?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 20% when planning your travel around this day of the week.

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

Our data shows that August tends to be the cheapest month to fly to Phoenix from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $405 for the month, but tickets can be as low as $225. Due to multiple factors, prepare for potentially higher prices in December.

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

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

How can I find direct flights from Dulles Intl to Phoenix?

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

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

Yes. Cheapflights offers flight deals from Dulles Intl to Phoenix by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$128+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Phoenix

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Find cheap flights from Dulles Intl to Phoenix 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.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Phoenix are usually found in August or July, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to Phoenix

Round-trip from	$260 (Kiwi.com)
One-way from	$128 (Kiwi.com)
Popular in	December
Cheapest in	August
Average price	$389

From Washington, D.C. Dulles Intl to Phoenix

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Phoenix

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from Dulles Intl to Phoenix

Cheapest flights from Dulles Intl to Phoenix
Explore the most affordable flight options available from Dulles Intl to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Tue 10/215:42 pmIAD - PHX

1 stop7h 57mMultiple Airlines

Sun 10/2610:59 pmPHX - IAD

1 stop19h 39mMultiple Airlines

Deal found 9/9

$252

Sat 10/258:53 amIAD - PHX

1 stop11h 06mHawaiian Airlines

Sat 11/16:01 amPHX - IAD

1 stop8h 12mHawaiian Airlines

Deal found 9/9

$255

Mon 10/276:15 amIAD - PHX

1 stop11h 50mFrontier

Sat 11/11:28 pmPHX - IAD

1 stop7h 27mFrontier

Deal found 9/9

$257

Sun 10/196:15 amIAD - PHX

2 stops31h 58mMultiple Airlines

Thu 10/2310:59 pmPHX - IAD

1 stop19h 14mMultiple Airlines

Deal found 9/9

$259

Thu 10/25:52 pmIAD - PHX

1 stop7h 34mMultiple Airlines

Fri 11/76:00 amPHX - IAD

1 stop8h 34mMultiple Airlines

Deal found 9/11

$260

Thu 10/25:52 pmIAD - PHX

1 stop7h 34mAlaska Airlines

Tue 10/76:00 amPHX - IAD

1 stop7h 42mAlaska Airlines

Deal found 9/11

$261

Thu 10/165:40 pmIAD - PHX

2 stops17h 54mMultiple Airlines

Thu 10/2310:59 pmPHX - IAD

1 stop19h 14mMultiple Airlines

Deal found 9/11

$262

Thu 10/236:15 amIAD - PHX

1 stop11h 50mFrontier

Sat 10/255:15 amPHX - IAD

2 stops15h 14mFrontier

Deal found 9/10

$263

Mon 9/226:10 amIAD - PHX

2 stops20h 32mFrontier

Fri 9/267:25 amPHX - IAD

2 stops13h 50mFrontier

Deal found 9/10

$264

Mon 9/291:55 pmIAD - PHX

2 stops11h 33mFrontier

Sat 10/412:39 pmPHX - IAD

2 stops17h 38mFrontier

Deal found 9/9

$265

Wed 10/229:00 amIAD - PHX

2 stops26h 17mFrontier

Mon 10/276:00 amPHX - IAD

1 stop14h 22mFrontier

Deal found 9/11

$266

Fri 10/246:15 amIAD - PHX

2 stops18h 24mFrontier

Sat 10/255:15 amPHX - IAD

2 stops15h 14mFrontier

Deal found 9/10

$267

Best flights from Dulles Intl to Phoenix
Discover carefully curated flight deals from Dulles Intl to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Sat 11/158:20 amIAD - PHX

Nonstop5h 13mUnited Airlines

Sun 11/1611:59 pmPHX - IAD

Nonstop4h 13mUnited Airlines

Deal found 9/9

$271

Thu 12/45:59 pmIAD - PHX

1 stop8h 17mDelta

Tue 12/92:18 pmPHX - IAD

1 stop7h 13mDelta

Deal found 9/10

$277

Mon 10/276:25 pmIAD - PHX

Nonstop4h 50mSouthwest

Sat 11/18:55 amPHX - IAD

Nonstop4h 20mSouthwest

Deal found 9/9

$287

Mon 10/138:55 amIAD - PHX

Nonstop4h 48mUnited Airlines

Sat 10/188:45 amPHX - IAD

Nonstop4h 27mUnited Airlines

Deal found 9/10

$271

Sat 10/255:10 pmIAD - PHX

1 stop7h 18mDelta

Sun 10/2612:40 amPHX - IAD

1 stop7h 46mDelta

Deal found 9/10

$277

Wed 10/227:40 amIAD - PHX

1 stop8h 45mSouthwest

Thu 11/202:15 pmPHX - IAD

1 stop5h 55mSouthwest

Deal found 9/10

$293

Tue 11/412:35 pmIAD - PHX

Nonstop5h 07mUnited Airlines

Tue 11/119:00 amPHX - IAD

Nonstop4h 12mUnited Airlines

Deal found 9/10

$273

Wed 10/16:15 amIAD - PHX

1 stop9h 27mDelta

Mon 10/612:40 amPHX - IAD

1 stop7h 46mDelta

Deal found 9/10

$277

Wed 10/227:40 amIAD - PHX

1 stop8h 45mSouthwest

Fri 10/2411:45 amPHX - IAD

1 stop8h 45mSouthwest

Deal found 9/9

$293

Tue 11/410:11 amIAD - PHX

1 stop6h 50mDelta

Mon 11/1712:59 amPHX - IAD

1 stop8h 08mDelta

Deal found 9/10

$277

Tue 11/45:45 pmIAD - PHX

1 stop6h 55mSouthwest

Tue 11/119:45 amPHX - IAD

2 stops10h 25mSouthwest

Deal found 9/10

$296

Tue 12/97:40 amIAD - PHX

2 stops8h 30mSouthwest

Mon 12/157:25 amPHX - IAD

1 stop6h 20mSouthwest

Deal found 9/10

$298

Last-minute flights from Dulles Intl to Phoenix
Discover last-minute flight deals from Dulles Intl to Phoenix. Data last updated September 11, 2025 and is based on user searches.

Mon 9/226:10 amIAD - PHX

2 stops20h 32mFrontier

Fri 9/267:25 amPHX - IAD

2 stops13h 50mFrontier

Deal found 9/11

$264

Mon 9/291:55 pmIAD - PHX

2 stops11h 33mFrontier

Sat 10/412:39 pmPHX - IAD

2 stops17h 38mFrontier

Deal found 9/9

$265

Thu 10/25:52 pmIAD - PHX

1 stop7h 34mMultiple Airlines

Fri 11/76:00 amPHX - IAD

1 stop8h 34mMultiple Airlines

Deal found 9/11

$260

Thu 10/25:52 pmIAD - PHX

1 stop7h 34mAlaska Airlines

Tue 10/76:00 amPHX - IAD

1 stop7h 42mAlaska Airlines

Deal found 9/11

$261

Thu 10/165:40 pmIAD - PHX

2 stops17h 54mMultiple Airlines

Thu 10/2310:59 pmPHX - IAD

1 stop19h 14mMultiple Airlines

Deal found 9/11

$262

Sun 10/196:15 amIAD - PHX

2 stops31h 58mMultiple Airlines

Thu 10/2310:59 pmPHX - IAD

1 stop19h 14mMultiple Airlines

Deal found 9/9

$259

Tue 10/215:42 pmIAD - PHX

1 stop7h 57mMultiple Airlines

Sun 10/2610:59 pmPHX - IAD

1 stop19h 39mMultiple Airlines

Deal found 9/9

$252

Wed 10/229:00 amIAD - PHX

2 stops26h 17mFrontier

Mon 10/276:00 amPHX - IAD

1 stop14h 22mFrontier

Deal found 9/11

$266

Thu 10/236:15 amIAD - PHX

1 stop11h 50mFrontier

Sat 10/255:15 amPHX - IAD

2 stops15h 14mFrontier

Deal found 9/10

$263

Fri 10/246:15 amIAD - PHX

2 stops18h 24mFrontier

Sat 10/255:15 amPHX - IAD

2 stops15h 14mFrontier

Deal found 9/10

$267

Sat 10/258:53 amIAD - PHX

1 stop11h 06mHawaiian Airlines

Sat 11/16:01 amPHX - IAD

1 stop8h 12mHawaiian Airlines

Deal found 9/9

$255

Mon 10/276:15 amIAD - PHX

1 stop11h 50mFrontier

Sat 11/11:28 pmPHX - IAD

1 stop7h 27mFrontier

Deal found 9/9

$257

One-way flights from Dulles Intl to Phoenix
Search for one-way flight options from Dulles Intl to Phoenix. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Mon 10/139:28 pmIAD - PHX

2 stops24h 37mFrontier

Deal found 9/8

$128

Sat 10/256:40 amIAD - PHX

1 stop6h 35mSouthwest

Deal found 9/9

$129

Sat 10/114:22 pmIAD - PHX

2 stops46h 03mFrontier

Deal found 9/9

$130

Thu 10/26:10 amIAD - PHX

2 stops16h 00mFrontier

Deal found 9/11

$132

Tue 9/309:15 amIAD - PHX

2 stops29h 27mFrontier

Deal found 9/10

$133

Tue 10/79:00 amIAD - PHX

2 stops27h 26mFrontier

Deal found 9/9

$134

Sat 11/16:40 amIAD - PHX

2 stops8h 05mSouthwest

Deal found 9/9

$135

Fri 10/314:50 pmIAD - PHX

1 stop6h 45mSouthwest

Deal found 9/9

$136

Wed 10/85:42 pmIAD - PHX

1 stop7h 57mHawaiian Airlines

Deal found 9/11

$137

Sun 12/71:21 pmIAD - PHX

1 stop25h 35mFrontier

Deal found 9/11

$138

Thu 12/45:59 pmIAD - PHX

1 stop8h 17mDelta

Deal found 9/11

$139

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 11/15

8:20 am-11:33 am

Nonstop5h 13m

Phoenix Sky Harbor Intl

Sun 11/16

11:59 pm-6:12 am

Nonstop4h 13m

$271

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 10/13

8:55 am-10:43 am

Nonstop4h 48m

Phoenix Sky Harbor Intl

Sat 10/18

8:45 am-4:12 pm

Nonstop4h 27m

$271

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 11/4

12:35 pm-3:42 pm

Nonstop5h 07m

Phoenix Sky Harbor Intl

Tue 11/11

9:00 am-3:12 pm

Nonstop4h 12m

$273

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Thu 12/4

5:59 pm-12:16 am

1 stop8h 17m

Phoenix Sky Harbor Intl

Tue 12/9

2:18 pm-11:31 pm

1 stop7h 13m

$277

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Sat 10/25

5:10 pm-9:28 pm

1 stop7h 18m

Phoenix Sky Harbor Intl

Sun 10/26

12:40 am-11:26 am

1 stop7h 46m

$277

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 10/1

6:15 am-12:42 pm

1 stop9h 27m

Phoenix Sky Harbor Intl

Mon 10/6

12:40 am-11:26 am

1 stop7h 46m

$277

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Tue 11/4

10:11 am-3:01 pm

1 stop6h 50m

Phoenix Sky Harbor Intl

Mon 11/17

12:59 am-11:07 am

1 stop8h 08m

$277

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Mon 10/27

6:25 pm-8:15 pm

Nonstop4h 50m

Phoenix Sky Harbor Intl

Sat 11/1

8:55 am-4:15 pm

Nonstop4h 20m

$287

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 10/22

7:40 am-1:25 pm

1 stop8h 45m

Phoenix Sky Harbor Intl

Thu 11/20

2:15 pm-10:10 pm

1 stop5h 55m

$293

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

Wed 10/22

7:40 am-1:25 pm

1 stop8h 45m

Phoenix Sky Harbor Intl

Fri 10/24

11:45 am-11:30 pm

1 stop8h 45m

$293

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 24 results

Best time to book a flight from Dulles Intl to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix 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 Phoenix

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

The best time to book flights from Washington, D.C. Dulles Intl Airport to Phoenix is 32 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Phoenix (average of $258). Flying from Washington, D.C. Dulles Intl Airport to Phoenix in March is currently the most expensive (average of $337). 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 PHX?

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Phoenix at noon. Doing so could potentially save you 36% on the flight price compared to flying in the evening, which is usually more expensive.

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

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Phoenix flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday 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 Phoenix

The most flights from IAD to PH1 are scheduled on a Monday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Reviews of airlines servicing Phoenix

Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Washington, D.C. Dulles Intl Airport to Phoenix. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Southwest

8.0

Very good

4,248 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Delta

8.0

Very good

7,960 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

United Airlines

7.4

Good

8,937 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Frontier

5.8

Fair

3,177 reviews

Southwest

8.0

Very good

4,248 reviews

Reviews

1 / 20

2.0

Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

How long is the flight from Washington, D.C. Dulles Intl Airport to Phoenix?
United Airlines and Delta can get you from Washington, D.C. Dulles Intl Airport to Phoenix in just under 5h 13m. Your travel time can differ by up to 3h 04m. There are 1950 mi between Washington, D.C. Dulles Intl Airport and Phoenix. This flight may include one or multiple stops.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Phoenix round-trip?
According to our current data, Frontier ($148), Sun Country Air ($265), and Southwest ($268) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Phoenix. Frontier is currently priced 63% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Phoenix one-way?
For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $137. Users have also found prices from $137 and $139 on Hawaiian Airlines and Delta, respectively.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Phoenix?
The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Phoenix are United Airlines (83%), Avianca (78%) and Austrian Airlines (66%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Phoenix?
While on average a flight from Washington, D.C. Dulles Intl Airport to Phoenix is generally $806, our data shows the cheapest flight currently is $103. When looking at the most popular route, (Washington, D.C. Dulles Intl - Phoenix Sky Harbor Intl), you can expect to pay $165 for that flight.
Can I find deals for flights from Dulles Intl to Phoenix that include hotel bookings?
Yes. In addition to deals on Dulles Intl to Phoenix flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to Phoenix?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Phoenix.
Can I find deals for business class flights from Dulles Intl to Phoenix?
Yes. Cheapflights offers flight deals from Dulles Intl to Phoenix 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 Phoenix?
Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Phoenix (average of $258). Flying from Washington, D.C. Dulles Intl Airport to Phoenix in March is currently the most expensive (average of $337). 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

Alternative routes for Dulles Intl to Phoenix

Dulles Intl to Las Vegas flights

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Dulles Intl to Sky Harbor Intl flights

Baltimore to Sky Harbor Intl flights

Reagan-National to Sky Harbor Intl flights

Dulles Intl to Tucson flights

Baltimore to Tucson flights

Reagan-National to Tucson flights

Baltimore to Flagstaff flights

Dulles Intl to Flagstaff flights

Reagan-National to Flagstaff flights

Reagan-National to Yuma flights

Baltimore to Yuma flights

Dulles Intl to Yuma flights

Top 6 airlines flying from Dulles Intl to Phoenix

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$148	Average$260	FlexibilityNo cancel fee	On-time62%
Sun Country Air	Cheapest$265	Average$310	FlexibilityNo cancel fee	On-time83%
Southwest	Cheapest$268	Average$379	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$274	Average$421	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$276	Average$350	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$366	Average$456	FlexibilityNo cancel fee	On-time71%

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$128+ Cheap flights from Dulles Intl (IAD) to Phoenix

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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Phoenix with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Phoenix are usually found in August or July, booked 64 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to Phoenix

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Phoenix

Cheapest flights from Dulles Intl to PhoenixExplore the most affordable flight options available from Dulles Intl to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from Dulles Intl to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Phoenix that are best for you.

Best time to book a flight from Dulles Intl to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Phoenix

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Phoenix. Price data was last updated on August 29, 2025.

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

What is the cheapest time of day to fly from IAD to PHX?

Find hourly flight availability from Dulles Intl to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

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

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

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

Reviews of airlines servicing Phoenix

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Phoenix. 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 Phoenix?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Phoenix round-trip?

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

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

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

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

How can I find direct flights from Dulles Intl to Phoenix?

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

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

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Alternative routes for Dulles Intl to Phoenix

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Top 6 airlines flying from Dulles Intl to Phoenix

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Cheapest flights from Dulles Intl to Phoenix
Explore the most affordable flight options available from Dulles Intl to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.