Phoenix

$134+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
feb. 18 — feb. 251
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The best prices from Washington, D.C. Dulles Intl to Phoenix are usually found in August or January, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Friday

Cheap flight deals from Dulles Intl to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated febrero 13, 2025.

Round-trip from

$278
(FlightHub)

One-way from

$134
(Booking.com)

Popular in

December

Cheapest in

August

Average price

$389
From Washington, D.C. Dulles Intl to Phoenix
One-way flight from Washington, D.C. Dulles Intl to Phoenix
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in February 2025

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 febrero 13, 2025.

This FlightHub deal was found by Cheapflights users on 2/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/112:45 pmIAD - PHX
1 stop7h 40mMultiple Airlines
lun. 5/56:16 pmPHX - IAD
1 stop9h 15mMultiple Airlines
Deal found 2/13$278
This Frontier deal was found by Cheapflights users on 2/13. 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.
mié. 4/93:19 pmIAD - PHX
1 stop8h 48mFrontier
jue. 4/1011:59 pmPHX - IAD
1 stop14h 06mFrontier
Deal found 2/13$280
This United Airlines deal was found by Cheapflights users on 2/12. 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.
sáb. 2/225:50 pmIAD - PHX
Nonstop5h 20mUnited Airlines
mié. 3/510:53 amPHX - IAD
1 stop6h 04mUnited Airlines
Deal found 2/12$284
This Southwest deal was found by Cheapflights users on 2/12. 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.
sáb. 2/225:25 pmIAD - PHX
Nonstop5h 10mSouthwest
mar. 3/410:20 amPHX - IAD
1 stop10h 45mSouthwest
Deal found 2/12$290
This Delta deal was found by Cheapflights users on 2/12. 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.
sáb. 2/225:57 pmIAD - PHX
1 stop7h 45mDelta
mar. 3/44:04 pmPHX - IAD
1 stop6h 16mDelta
Deal found 2/12$308
This Alaska Airlines deal was found by Cheapflights users on 2/12. 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.
mar. 9/167:00 amIAD - PHX
1 stop10h 21mAlaska Airlines
sáb. 9/206:00 amPHX - IAD
1 stop8h 55mAlaska Airlines
Deal found 2/12$318
This Sun Country Air deal was found by Cheapflights users on 2/11. 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.
dom. 3/26:00 amIAD - PHX
1 stop19h 49mSun Country Air
vie. 3/712:59 amPHX - IAD
1 stop18h 01mSun Country Air
Deal found 2/11$320
This American Airlines deal was found by Cheapflights users on 2/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/258:14 pmIAD - PHX
1 stop6h 42mAmerican Airlines
mié. 4/301:46 pmPHX - IAD
1 stop5h 56mAmerican Airlines
Deal found 2/12$377

Find flights from Dulles Intl to Phoenix within your budget

Customize your flight search to find flights from Dulles Intl to Phoenix 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 febrero 13, 2025.

Fly from

Dulles Intl

Fly to

Phoenix

Route

Depart

Return

Price

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

jue. 5/1

12:45 pm-5:25 pm

1 stop7h 40m

Phoenix Sky Harbor Intl

lun. 5/5

6:16 pm-6:31 am

1 stop9h 15m

$278

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

mié. 4/9

3:19 pm-9:07 pm

1 stop8h 48m

Phoenix Sky Harbor Intl

jue. 4/10

11:59 pm-5:05 pm

1 stop14h 06m

$280

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 2/22

5:50 pm-9:10 pm

Nonstop5h 20m

Phoenix Sky Harbor Intl

mié. 3/5

10:53 am-6:57 pm

1 stop6h 04m

$284

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 2/22

5:25 pm-8:35 pm

Nonstop5h 10m

Phoenix Sky Harbor Intl

mar. 3/4

10:20 am-11:05 pm

1 stop10h 45m

$290

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 2/22

12:29 pm-6:51 pm

1 stop8h 22m

Phoenix Sky Harbor Intl

mié. 3/5

4:04 pm-12:20 am

1 stop6h 16m

$308

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

dom. 3/2

6:00 am-11:49 pm

1 stop19h 49m

Phoenix Sky Harbor Intl

vie. 3/7

12:59 am-9:00 pm

1 stop18h 01m

$320

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

vie. 4/25

8:14 pm-11:56 pm

1 stop6h 42m

Phoenix Sky Harbor Intl

mar. 4/29

6:30 am-4:22 pm

1 stop6h 52m

$377

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

mié. 3/12

7:00 am-10:59 pm

2 stops18h 59m

Phoenix Sky Harbor Intl

mié. 3/19

3:22 pm-4:30 pm

1 stop22h 08m

$403

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

lun. 4/7

6:50 am-4:42 pm

1 stop12h 52m

$134

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 2/22

8:25 am-9:34 am

2 stops27h 09m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Showing 1-10 of 18 results
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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.

Travel insights for flights from Dulles Intl to Phoenix

Get recent, data-driven insights about flights from Dulles Intl to Phoenix including ideal travel times, pricing trends, and more.

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 February 7, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Phoenix is 71 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?

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 febrero 13, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Phoenix at noon. Doing so could potentially save you 39% 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?

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.

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

Explore weekly flight availability from Dulles Intl to Phoenix. 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 febrero 13, 2025.

The most flights from IAD to PH1 are scheduled on a Thursday (8 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 Phoenix by month

Plan your trip to Phoenix by taking into account the average rainfall totals by month.

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.

Temperature in Phoenix by month

Plan your trip to Phoenix by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated febrero 13, 2025.
To help decide which airline to fly from Washington, D.C. to Phoenix, see what other customers have to say about Southwest, Breeze Airways and Alaska Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.6

Comfort

8.1

Overall

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Entertainment

7.6

Comfort

8.1

Overall

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Entertainment

7.6

Comfort

8.1

Overall

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Entertainment

7.6

Comfort

8.1

Overall

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

8.0
Very good

Entertainment

7.6

Comfort

8.1

Overall

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

Entertainment

7.6

Comfort

8.1

Overall

8.1

Food

7.1

Boarding

8.2

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Steven,Feb 2025

BZN - DEN

Bozeman Airport knows how to deal with snow. I saw many airlines leave with only small delays due to the foot of snow. Our plane was 4 hours delayed. I missed my connection in Denver with a 3.5 hour layover. Because of that, the best you Southwest could do was make me wait more hours, them send me to Chicago Midway, where I had to wait overnight, for 7 more hours until a flight to RSW was available. Nobody at Southwest told me that Midway shuts down after 8pm. Everything was closed. I had no idea. You just dumped me there. I am a 65 year old man and you dumped me in Midway without even a couch to lie on. I was awake 21 hours because of this. No, it was not an act of God. Other airlines were moving passengers out. It was incompetence Shame on you.

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