HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sky Harbor Intl

$125+ Cheap flights from Dulles Intl (IAD) to Sky Harbor Intl (PHX)

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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — PHX
mar. 23 — mar. 301
dom. 3/23
dom. 3/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Sky Harbor Intl 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.

The best prices from Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl are usually found in August or January, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Friday

Cheap flight deals from Dulles Intl to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Sky Harbor Intl (PHX). 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 marzo 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$275
(United Airlines)

One-way from

$125
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$452

Good round-trip deal

$369 or less

Good one-way deal

$187 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Phoenix Sky Harbor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Phoenix Sky Harbor Intl flights.
Search Deals
From Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Phoenix Sky Harbor Intl.
Search Deals

Find flight deals from Dulles Intl to Sky Harbor Intl

Cheapest flights from Dulles Intl to Sky Harbor Intl
Explore the most affordable flight options available from Dulles Intl to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on marzo 18, 2025.

This United Airlines deal was found by Cheapflights users on 3/17. 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.
jue. 5/293:44 pmIAD - PHX
1 stop9h 17mUnited Airlines
dom. 6/111:39 pmPHX - IAD
Nonstop4h 23mUnited Airlines
Deal found 3/17$275
This Southwest deal was found by Cheapflights users on 3/17. 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.
lun. 4/75:30 pmIAD - PHX
Nonstop5h 15mSouthwest
mié. 4/99:25 amPHX - IAD
Nonstop4h 20mSouthwest
Deal found 3/17$277
This Frontier deal was found by Cheapflights users on 3/17. 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. 4/23:19 pmIAD - PHX
1 stop8h 48mFrontier
sáb. 4/511:59 pmPHX - IAD
1 stop7h 56mFrontier
Deal found 3/17$280
This Mytrip deal was found by Cheapflights users on 3/17. 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.
lun. 4/76:35 amIAD - PHX
1 stop13h 07mMultiple Airlines
lun. 4/1411:24 pmPHX - IAD
1 stop14h 38mMultiple Airlines
Deal found 3/17$285
This Trip.com deal was found by Cheapflights users on 3/17. 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.
mar. 4/227:00 amIAD - PHX
1 stop11h 49mAlaska Airlines
mié. 4/236:16 pmPHX - IAD
1 stop10h 27mAlaska Airlines
Deal found 3/17$291
This Delta deal was found by Cheapflights users on 3/17. 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. 5/246:25 amIAD - PHX
1 stop9h 21mDelta
mar. 5/2711:25 pmPHX - IAD
1 stop6h 49mDelta
Deal found 3/17$297
This Cheapflightsfares deal was found by Cheapflights users on 3/17. 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.
jue. 4/1011:57 amIAD - PHX
1 stop13h 48mSun Country Air
mié. 4/166:25 pmPHX - IAD
1 stop14h 12mSun Country Air
Deal found 3/17$304
This American Airlines deal was found by Cheapflights users on 3/18. 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.
sáb. 6/711:18 amIAD - PHX
2 stops8h 45mAmerican Airlines
sáb. 6/712:38 amPHX - IAD
1 stop7h 07mAmerican Airlines
Deal found 3/18$382

Find flights from Dulles Intl to Sky Harbor Intl within your budget

Customize your flight search to find flights from Dulles Intl to Sky Harbor 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 marzo 18, 2025.

Fly from

Dulles Intl

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

jue. 5/29

3:44 pm-10:01 pm

1 stop9h 17m

Phoenix Sky Harbor Intl

dom. 6/1

11:39 pm-7:02 am

Nonstop4h 23m

$275

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

lun. 4/7

5:30 pm-7:45 pm

Nonstop5h 15m

Phoenix Sky Harbor Intl

mié. 4/9

9:25 am-4:45 pm

Nonstop4h 20m

$277

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

mié. 4/2

3:19 pm-9:07 pm

1 stop8h 48m

Phoenix Sky Harbor Intl

vie. 4/4

11:19 pm-11:58 am

1 stop9h 39m

$280

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

lun. 4/7

6:35 am-4:42 pm

1 stop13h 07m

Phoenix Sky Harbor Intl

lun. 4/14

11:24 pm-5:02 pm

1 stop14h 38m

$285

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

mar. 4/22

7:00 am-3:49 pm

1 stop11h 49m

Phoenix Sky Harbor Intl

mié. 4/23

6:16 pm-7:43 am

1 stop10h 27m

$291

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 5/24

6:25 am-12:46 pm

1 stop9h 21m

Phoenix Sky Harbor Intl

mar. 5/27

11:25 pm-9:14 am

1 stop6h 49m

$297

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

jue. 4/10

11:57 am-10:45 pm

1 stop13h 48m

Phoenix Sky Harbor Intl

mié. 4/16

6:25 pm-11:37 am

1 stop14h 12m

$304

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 4/26

6:30 am-2:12 pm

1 stop10h 42m

Phoenix Sky Harbor Intl

sáb. 5/3

6:00 am-8:43 pm

1 stop11h 43m

$318

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

sáb. 6/7

11:18 am-5:03 pm

2 stops8h 45m

Phoenix Sky Harbor Intl

sáb. 6/7

12:38 am-10:45 am

1 stop7h 07m

$382

Washington, D.C.Phoenix

IAD - PHX

IADPHX

Washington, D.C. Dulles Intl

dom. 4/20

4:00 pm-9:34 pm

1 stop8h 34m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/18

Showing 1-10 of 19 results
1
2

Compare providers for flights from Dulles Intl to Sky Harbor Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Sky Harbor Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Phoenix Sky Harbor Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Phoenix Sky Harbor Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Phoenix Sky Harbor Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl 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 Sky Harbor Intl

Get recent, data-driven insights about flights from Dulles Intl to Sky Harbor Intl 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 Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Sky Harbor Intl. Price data was last updated on March 14, 2025.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated marzo 18, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport at noon. Doing so could potentially save you 34% 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 Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Sky Harbor Intl. Price data was last updated on March 16, 2025.

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport

Explore weekly flight availability from Dulles Intl to Sky Harbor 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 marzo 18, 2025.

The most flights from IAD to PHX are scheduled on a Tuesday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport when rainfall is around 0.0 in.

Temperature in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix Sky Harbor 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 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 Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor 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 Sky Harbor Intl. Reviews last updated marzo 18, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Phoenix, such as Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,280 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,754 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,908 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,323 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,611 reviews
Southwest
8.1
Very good
4,280 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Boarding

8.2

Overall

8.1

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Sky Harbor 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 flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport round-trip?

    Our cheapest airline available from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport is United Airlines. Our recent data shows that you can find tickets from as low as $275 on this airline. Additional options worth looking into are Southwest and Frontier, starting at $277 and $280 round-trip. You may be able to fly from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport for 34% less than the average price by searching for these airlines.

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

    $125 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $127 and $139, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport consider choosing United Airlines (89%), Avianca (87%) or Lufthansa (85%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport is generally $840, our data shows the cheapest flight currently is $138. When looking at the most popular route, (Washington, D.C. Dulles Intl - Phoenix Sky Harbor Intl), you can expect to pay $200 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Washington, D.C. Dulles Intl Airport to Phoenix Sky Harbor Intl Airport 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Chandler
Peoria
Buckeye
Globe
Glendale
Payson
Surprise
Goodyear
Avondale
Paradise Valley
Guadalupe
Litchfield Park
Fountain Hills

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 Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Sky Harbor Intl flights
Baltimore to Sky Harbor Intl flights

Top 6 airlines flying from Dulles Intl to Sky Harbor Intl

Discover the top 6 airlines that operate flights from Dulles Intl to Sky Harbor 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 marzo 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$132Average$224FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$238Average$310FlexibilityNo cancel feeOn-time83%
DeltaCheapest$256Average$348FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$277Average$428FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$288Average$400FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$358Average$456FlexibilityNo 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.