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Dulles Intl

$96+ Cheap flights from Sky Harbor Intl (PHX) to Dulles Intl (IAD)

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — IAD
janv. 21 — janv. 281
mar. 1/21
mar. 1/28
1 adult, Economy
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The best prices from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl are usually found in August or September, booked 90 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Dulles Intl (IAD). 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 janvier 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$270
(CheapOair)

One-way from

$105
(Frontier)

Popular in

January

Cheapest in

August

Average price

$487
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Washington, D.C. Dulles Intl flights.
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From Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl
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One-way flight from Phoenix Sky Harbor Intl to Washington, D.C. Dulles Intl
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High demand for flights, 8% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Sky Harbor Intl to Dulles Intl

Cheapest flights from Sky Harbor Intl to Dulles Intl
Explore the most affordable flight options available from Sky Harbor Intl to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on janvier 16, 2025.

This CheapOair deal was found by Cheapflights users on 1/16. 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.
mar. 3/1811:56 pmPHX - IAD
1 stop13h 58mFrontier
lun. 3/246:03 pmIAD - PHX
1 stop31h 13mFrontier
Deal found 1/16$270
This United Airlines deal was found by Cheapflights users on 1/15. 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.
mer. 2/199:48 amPHX - IAD
Nonstop4h 12mUnited Airlines
mer. 2/265:50 pmIAD - PHX
Nonstop5h 20mUnited Airlines
Deal found 1/15$274
This Delta deal was found by Cheapflights users on 1/16. 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.
sam. 2/156:00 amPHX - IAD
1 stop8h 38mDelta
sam. 2/227:25 amIAD - PHX
1 stop7h 56mDelta
Deal found 1/16$297
This Southwest deal was found by Cheapflights users on 1/16. 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.
mer. 2/1911:00 amPHX - IAD
Nonstop4h 05mSouthwest
lun. 2/246:55 amIAD - PHX
1 stop11h 35mSouthwest
Deal found 1/16$313
This Sun Country Air deal was found by Cheapflights users on 1/15. 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.
sam. 5/179:50 amPHX - IAD
1 stop22h 57mSun Country Air
lun. 5/2612:45 pmIAD - PHX
1 stop7h 40mSun Country Air
Deal found 1/15$320
This Mytrip deal was found by Cheapflights users on 1/16. 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.
jeu. 3/203:42 pmPHX - IAD
2 stops16h 38mMultiple Airlines
mar. 3/258:00 amIAD - PHX
3 stops34h 12mMultiple Airlines
Deal found 1/16$353
This American Airlines deal was found by Cheapflights users on 1/16. 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.
sam. 2/158:00 amPHX - IAD
2 stops8h 01mAmerican Airlines
sam. 2/225:13 pmIAD - PHX
1 stop7h 23mAmerican Airlines
Deal found 1/16$363
This Alaska Airlines deal was found by Cheapflights users on 1/16. 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.
ven. 2/76:00 amPHX - IAD
1 stop9h 57mAlaska Airlines
lun. 2/106:57 pmIAD - PHX
2 stops17h 38mAlaska Airlines
Deal found 1/16$396

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

Customize your flight search to find flights from Sky Harbor Intl to Dulles 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 janvier 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

mer. 2/12

8:00 am-4:13 pm

1 stop6h 13m

Washington, D.C. Dulles Intl

mer. 2/19

5:15 pm-10:59 pm

1 stop7h 44m

$269

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

mer. 3/12

10:08 am-8:13 pm

1 stop7h 05m

Washington, D.C. Dulles Intl

mar. 3/18

5:54 pm-10:16 pm

1 stop31h 22m

$270

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

sam. 2/15

6:00 am-4:38 pm

1 stop8h 38m

Washington, D.C. Dulles Intl

sam. 2/22

7:25 am-1:21 pm

1 stop7h 56m

$297

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

mar. 4/8

11:59 pm-5:02 pm

1 stop14h 03m

Washington, D.C. Dulles Intl

dim. 4/13

11:51 am-10:35 pm

1 stop13h 44m

$300

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

sam. 5/17

9:50 am-11:47 am

1 stop22h 57m

Washington, D.C. Dulles Intl

lun. 5/26

12:45 pm-5:25 pm

1 stop7h 40m

$320

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

mer. 2/12

2:15 pm-11:05 pm

1 stop6h 50m

Washington, D.C. Dulles Intl

mer. 2/19

3:55 pm-7:05 pm

Nonstop5h 10m

$328

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

sam. 2/15

8:00 am-6:01 pm

2 stops8h 01m

Washington, D.C. Dulles Intl

sam. 2/22

5:13 pm-10:36 pm

1 stop7h 23m

$363

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

jeu. 2/6

6:00 am-5:57 pm

1 stop9h 57m

Washington, D.C. Dulles Intl

lun. 2/10

6:57 pm-10:35 am

2 stops17h 38m

$396

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

mer. 4/23

3:25 pm-4:23 pm

1 stop21h 58m

$96

PhoenixWashington, D.C.

PHX - IAD

PHXIAD

Phoenix Sky Harbor Intl

sam. 2/15

9:48 am-4:00 pm

Nonstop4h 12m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 17 results
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Compare providers for flights from Sky Harbor Intl to Dulles 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 Sky Harbor Intl to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust 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 Phoenix Sky Harbor Intl Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Washington, D.C. Dulles 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 Phoenix Sky Harbor Intl Airport-Washington, D.C. Dulles 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 Sky Harbor Intl to Dulles Intl

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Dulles Intl. Price data was last updated on January 10, 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 90 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 PHX to IAD?

Find hourly flight availability from Sky Harbor Intl to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated janvier 16, 2025.

It’s typically best to fly out from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

Explore weekly flight availability from Sky Harbor Intl to Dulles 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 janvier 16, 2025.

The most flights from PHX to IAD are scheduled on a Thursday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Dulles Intl by month

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

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

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

If weather is an important factor for your trip to Washington, D.C. Dulles 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles 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 Dulles Intl. Reviews last updated janvier 16, 2025.
Read reviews from past customers who have flown Delta, United Airlines and Southwest from Phoenix to Washington, D.C.. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,681 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,511 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,964 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Overall

8.1

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

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

    Currently priced at $270, Frontier will fly you from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $274 and $297, respectively. Frontier is currently priced 36% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport 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 United Airlines and Delta, with prices starting from $125 and $140, respectively.

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

    Consider Lufthansa (92%), Brussels Airlines (92%) or United Airlines (91%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.

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

    Looking at all options, your cheapest flight can be booked for $149. While the most popular route (Phoenix Sky Harbor Intl - Washington, D.C. Dulles Intl) can be booked for $230 on average our data indicates $1,270 when flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). 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 Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Greenbelt
Sterling
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston

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Alternative routes for Sky Harbor Intl to Dulles Intl

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

Top 5 airlines flying from Sky Harbor Intl to Dulles Intl

Discover the top 5 airlines that operate flights from Sky Harbor Intl to Dulles 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 janvier 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$146Average$254FlexibilityNo cancel feeOn-time62%
DeltaCheapest$225Average$340FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$260Average$408FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$440FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$294Average$453FlexibilityNo cancel feeOn-time71%
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