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Dulles Intl

$285+ Cheap flights from Dublin (DUB) 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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Find cheap flights from Dublin to Dulles 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Dublin to Washington, D.C. Dulles Intl are usually found in January or November, booked 37 days in advance, depart on a Monday or Sunday and return on a Tuesday

Cheap flight deals from Dublin to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) 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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$407
(Mytrip)

One-way from

$285
(Kiwi.com)

Popular in

August

Cheapest in

January

Average price

$507

Good round-trip deal

$549 or less

Good one-way deal

$539 or less
Provider with most accurate pricing for Dublin-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Dublin-Washington, D.C. Dulles Intl flights.
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From Dublin to Washington, D.C. Dulles Intl
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One-way flight from Dublin to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 13% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Dublin to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Dublin to Washington, D.C. Dulles Intl.
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Find flight deals from Dublin to Dulles Intl

Cheapest flights from Dublin to Dulles Intl
Explore the most affordable flight options available from Dublin to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This Mytrip deal was found by Cheapflights users on 11/5. 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.
Wed 12/311:30 amDUB - IAD
1 stop12h 00mIcelandair
Wed 12/107:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 11/5$407
This Booking.com deal was found by Cheapflights users on 11/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:30 amDUB - IAD
1 stop12h 00mIcelandair
Sun 12/147:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 11/6$412
This Icelandair deal was found by Cheapflights users on 11/5. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/511:30 amDUB - IAD
1 stop12h 00mIcelandair
Mon 12/87:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 11/5$441
This Icelandair deal was found by Cheapflights users on 11/6. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:30 amDUB - IAD
1 stop12h 00mIcelandair
Thu 1/87:40 pmIAD - DUB
1 stop9h 35mIcelandair
Deal found 11/6$462
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Sat 11/1511:30 amDUB - IAD
2 stops17h 29mAmerican Airlines
Mon 11/242:16 pmIAD - DUB
2 stops17h 19mAmerican Airlines
Deal found 11/6$463
This Delta deal was found by Cheapflights users on 11/6. 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.
Wed 11/268:50 amDUB - IAD
1 stop12h 15mDelta
Tue 2/246:50 pmIAD - DUB
1 stop15h 55mDelta
Deal found 11/6$465
This Delta deal was found by Cheapflights users on 11/5. 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.
Wed 11/265:55 amDUB - IAD
1 stop15h 10mDelta
Thu 2/266:50 pmIAD - DUB
1 stop15h 55mDelta
Deal found 11/5$466
This American Airlines deal was found by Cheapflights users on 11/5. 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.
Fri 12/512:55 pmDUB - IAD
1 stop15h 04mAmerican Airlines
Mon 12/87:59 amIAD - DUB
2 stops23h 36mAmerican Airlines
Deal found 11/5$467
This Delta deal was found by Cheapflights users on 11/6. 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.
Thu 11/208:50 amDUB - IAD
1 stop12h 15mDelta
Sat 11/2912:11 pmIAD - DUB
1 stop15h 34mDelta
Deal found 11/6$468
This Delta deal was found by Cheapflights users on 11/5. 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.
Wed 11/125:55 amDUB - IAD
1 stop15h 10mDelta
Sun 11/1610:05 amIAD - DUB
1 stop16h 40mDelta
Deal found 11/5$469

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dublin 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 November 6, 2025.
Use the filters below to find and compare flights from Dublin to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Dublin

Fly to

Dulles Intl

Route

Depart

Return

Price

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 12/5

11:30 am-6:30 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 12/8

7:40 pm-10:15 am

1 stop9h 35m

$441

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 1/12

10:45 am-11:12 pm

2 stops17h 27m

Washington, D.C. Dulles Intl

Sun 1/18

6:20 pm-12:15 pm

1 stop12h 55m

$465

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 11/26

5:55 am-4:05 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Mon 12/8

6:50 pm-3:45 pm

1 stop15h 55m

$465

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 1/9

5:15 pm-4:05 pm

1 stop27h 50m

Washington, D.C. Dulles Intl

Sun 1/18

6:50 pm-3:45 pm

1 stop15h 55m

$466

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 11/26

5:55 am-4:05 pm

1 stop15h 10m

Washington, D.C. Dulles Intl

Thu 2/26

12:23 pm-7:50 am

2 stops14h 27m

$466

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 11/20

8:50 am-4:05 pm

1 stop12h 15m

Washington, D.C. Dulles Intl

Sat 11/29

12:11 pm-8:45 am

1 stop15h 34m

$468

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 2/11

6:00 am-4:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Wed 2/18

6:50 pm-3:45 pm

1 stop15h 55m

$470

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Mon 3/23

5:55 am-7:12 pm

2 stops17h 17m

Washington, D.C. Dulles Intl

Thu 4/16

9:20 pm-3:00 pm

1 stop12h 40m

$471

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 11/27

8:55 am-4:35 pm

1 stop12h 40m

Washington, D.C. Dulles Intl

Sat 12/6

12:19 pm-7:50 am

2 stops14h 31m

$472

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Wed 1/21

5:05 pm-2:42 pm

2 stops50h 37m

$285

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 18 results
1
2

Compare providers for flights from Dublin 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 Dublin to Dulles Intl in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 Dublin-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dublin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dublin-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 Dublin-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Dublin-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 Dublin to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Dublin 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 Dublin to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Dulles Intl. Price data was last updated on October 31, 2025.

The price you pay for your flight from Dublin to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 37 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 Dublin to Washington, D.C. Dulles Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $366). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $598). 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 DUB to IAD?

Find hourly flight availability from Dublin 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 November 6, 2025.

It’s typically best to fly out from Dublin to Washington, D.C. Dulles Intl Airport in the evening. Doing so could potentially save you 28% on the flight price compared to flying in the morning, which is usually more expensive.

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

The best insider tips for Dublin to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Washington, D.C. Dulles Intl Airport trip
Airlines
Aer Lingus

Pre-clear US immigration in Dublin, saving time upon arrival in the US.


Enjoy a complimentary hot meal and drinks on transatlantic flights.

Read more about Aer Lingusby Evie Carrick
United Airlines

Polaris passengers access exclusive lounges with showers and dining at IAD.


Premium Plus offers extra legroom and upgraded meals on international flights.

Read more about United Airlinesby Harriet Baskas
Airports
DUB

For US travelers, preclearance at DUB can be time-consuming. Allow 30-45 minutes after security to complete this process.

Read more about DUBby James March
IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cheap city transit option.

Read more about IADby Ramsey Qubein
Our travel experts
Evie Carrick

Evie Carrick

Expert on Aer Lingus

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
James March

James March

Expert on DUB

James March

James March

For UK-based James March, nothing beats the thrill and chaos of arriving in a new city for the first time, and he tries to put that feeling into his writing and inspire others to travel too. From Birmingham to Blackpool and Leicester to Liverpool, James has reviewed hotels, written narratives and created guides for those who love to travel.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on IAD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

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 November 6, 2025.
Read through reviews of airlines operating flights from Dublin to Washington, D.C. Dulles Intl Airport, such as United Airlines, Aer Lingus, and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,007 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,007 reviews
United Airlines
7.4
Good
9,007 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Aer Lingus
7.2
Good
1,365 reviews
United Airlines
7.4
Good
9,007 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.1
Good
572 reviews
United Airlines
7.4
Good
9,007 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Overall

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

Find useful and relevant information for your journey from Dublin 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 airport do you fly from for flights from Dublin to Washington, D.C. Dulles Intl?

    Dublin (DUB) is the airport you will fly out of if you book a flight from Dublin to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Dublin; the airport handles an average of 12 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Dublin airport to Washington, D.C. Dulles Intl. It is only a 5.7 mi journey to Dublin (DUB) from Dublin’s city center.

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

    Departing from Dublin to Washington, D.C. Dulles Intl Airport will take you 12h. There are 3393 mi between Dublin and Washington, D.C. Dulles Intl Airport. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $425, Icelandair will fly you from Dublin to Washington, D.C. Dulles Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Aer Lingus and United Airlines - these airlines can fly you to your destination from $454 and $643, respectively. Icelandair is 29% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Dublin, check out the most reliable airlines to get you to your destination on time: Air Canada (85%), United Airlines (85%), Lufthansa( 82%).

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

    The cheapest flight price from Dublin to Washington, D.C. Dulles Intl Airport is $446. On average you can expect to pay $1,013. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for $407.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $366). Flying from Dublin to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $598). 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
Alexandria
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

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Alternative routes for Dublin to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Baltimore flights
Dublin to Reagan-National flights
Shannon to Baltimore flights
Cork to Baltimore flights
Shannon to Dulles Intl flights

Top 3 airlines flying from Dublin to Dulles Intl

Discover the top 3 airlines that operate flights from Dublin 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$425Average$608FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$454Average$598FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$643Average$808FlexibilityNo cancel feeOn-time69%

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