HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$377+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — IAD
Aug 14 — Aug 211
Fri 8/14
Fri 8/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 Dublin to Washington, D.C. Dulles Intl are usually found in November or February, booked 37 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 July 15, 2026.

This Scandinavian Airlines deal was found by Cheapflights users on 7/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:15 am
DUB
-
IAD
1 stop11h 45m
Scandinavian Airlines
Fri 9/48:20 pm
IAD
-
DUB
2 stops30h 40m
Scandinavian Airlines
Deal found 7/13$598
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:40 am
DUB
-
IAD
2 stops30h 05m
Multiple Airlines
Sat 9/53:50 pm
IAD
-
DUB
1 stop14h 05m
Multiple Airlines
Deal found 7/10$600
This Gotogate deal was found by Cheapflights users on 7/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:10 am
DUB
-
IAD
2 stops34h 50m
Scandinavian Airlines
Wed 9/98:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Deal found 7/13$603
This Scandinavian Airlines deal was found by Cheapflights users on 7/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:50 pm
DUB
-
IAD
2 stops26h 10m
Scandinavian Airlines
Fri 9/48:20 pm
IAD
-
DUB
2 stops30h 40m
Scandinavian Airlines
Deal found 7/13$605
This Scandinavian Airlines deal was found by Cheapflights users on 7/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:40 am
DUB
-
IAD
2 stops34h 20m
Scandinavian Airlines
Sun 8/308:20 pm
IAD
-
DUB
2 stops32h 50m
Scandinavian Airlines
Deal found 7/13$606
This British Airways deal was found by Cheapflights users on 7/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:30 am
DUB
-
IAD
1 stop14h 10m
British Airways
Mon 10/127:15 pm
IAD
-
DUB
1 stop11h 45m
British Airways
Deal found 7/14$607
This British Airways deal was found by Cheapflights users on 7/12. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:30 am
DUB
-
IAD
1 stop14h 50m
British Airways
Mon 8/315:45 pm
IAD
-
DUB
1 stop13h 15m
British Airways
Deal found 7/12$608
This Delta deal was found by Cheapflights users on 7/10. 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 8/278:55 am
DUB
-
IAD
1 stop11h 40m
Delta
Sat 9/57:59 pm
IAD
-
DUB
2 stops17h 26m
Delta
Deal found 7/10$609
This Delta deal was found by Cheapflights users on 7/14. 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.
Tue 10/205:55 am
DUB
-
IAD
2 stops16h 38m
Delta
Tue 11/106:40 pm
IAD
-
DUB
1 stop14h 50m
Delta
Deal found 7/14$610

Find 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 July 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$598
(Scandinavian Airlines)

One-way from

$377
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$839

Good round-trip deal

$779 or less

Good one-way deal

$685 or less
Provider with most accurate pricing for Dublin-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Washington, D.C. Dulles Intl flights.
Search Deals
From Dublin to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Dublin to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($95 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Dublin to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Dublin to Washington, D.C. Dulles Intl.
Search Deals

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 July 15, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 10/23

5:55 am-11:11 pm

2 stops22h 16m

Washington, D.C. Dulles Intl

Fri 11/6

7:00 am-8:45 am

1 stop20h 45m

$601

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 8/27

7:50 pm-5:00 pm

2 stops26h 10m

Washington, D.C. Dulles Intl

Sat 9/5

8:20 pm-10:25 am

2 stops33h 05m

$607

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Thu 8/27

8:55 am-3:35 pm

1 stop11h 40m

Washington, D.C. Dulles Intl

Sat 9/5

7:59 pm-6:25 pm

2 stops17h 26m

$609

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 10/20

5:55 am-5:33 pm

2 stops16h 38m

Washington, D.C. Dulles Intl

Tue 11/10

6:40 pm-2:30 pm

1 stop14h 50m

$610

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Fri 8/28

5:55 am-3:35 pm

1 stop14h 40m

Washington, D.C. Dulles Intl

Sat 9/5

5:25 pm-6:25 pm

2 stops20h 00m

$612

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 8/25

8:55 am-6:33 pm

2 stops14h 38m

Washington, D.C. Dulles Intl

Tue 9/22

9:45 pm-3:25 pm

1 stop12h 40m

$614

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 12/26

9:00 am-3:45 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Sun 1/3

8:15 am-7:30 am

1 stop18h 15m

$618
Quickest round-trip

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Tue 8/25

9:50 am-3:01 pm

1 stop10h 11m

Washington, D.C. Dulles Intl

Tue 9/22

10:35 pm-10:40 am

Nonstop7h 05m

$618

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sat 12/26

9:40 am-6:05 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Sat 1/2

12:55 pm-7:45 am

1 stop13h 50m

$622
Cheapest one-way

DublinWashington, D.C.

DUB - IAD

DUBIAD

Dublin

Sun 9/6

7:55 am-2:12 pm

3 stops35h 17m

$426

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 19 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice Accuracy-Trust Score*3 stars
AranGrantPrice 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 Dublin-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 Dublin-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >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 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 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?

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 35 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, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $488). Flying from Dublin to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $850). 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 July 15, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Washington, D.C. Dulles Intl Airport as you normally would.

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

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Dublin to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Evie Carrick

Evie Carrick

Expert on Aer Lingus

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 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

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

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 July 15, 2026.
Read through reviews of airlines operating flights from Dublin to Washington, D.C. Dulles Intl Airport, such as United Airlines,Aer Lingus, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,988 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,988 reviews
United Airlines
7.4
Good
9,988 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.3
Good
1,666 reviews
United Airlines
7.4
Good
9,988 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.0
Good
708 reviews
United Airlines
7.4
Good
9,988 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

Entertainment

7.1

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 11 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 22h 16m. 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 $452, 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 $455 and $684, respectively. Icelandair is 30% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $477. Users have also found prices from $611 and $742 on American Airlines and Lufthansa, respectively.

  • 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: Qatar Airways (87%), American Airlines (85%), Aer Lingus( 85%).

  • 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 $572. On average you can expect to pay $1,664. The most popular route, (Dublin - Washington, D.C. Dulles Intl), can usually be booked for $509.

  • 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, November is the cheapest month in which you can book a flight from Dublin to Washington, D.C. Dulles Intl Airport (average of $488). Flying from Dublin to Washington, D.C. Dulles Intl Airport in August is currently the most expensive (average of $850). 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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Chantilly
Hyattsville
Manassas
Fredericksburg
Falls Church
Hanover
Laurel
Sterling
Clinton
Hunt Valley
Cordova

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 Dublin to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dublin to Baltimore flights
Shannon to Dulles Intl flights
Cork to Baltimore 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 July 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$452Average$467FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$455Average$683FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$684Average$874FlexibilityNo cancel feeOn-time69%

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.