Dublin

$270+ Cheap flights from Dulles Intl (IAD) to Dublin (DUB)

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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
Nov 29 — Dec 61
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or February, booked 57 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Find flight deals from Dulles Intl to Dublin

Cheapest flights from Dulles Intl to Dublin
Explore the most affordable flight options available from Dulles Intl to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This United deal was found by Cheapflights users on 10/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/910:20 pmIAD - DUB
Nonstop7h 00mMultiple Airlines
Tue 11/185:00 amDUB - IAD
1 stop15h 50mMultiple Airlines
Deal found 10/27$484
This Booking.com deal was found by Cheapflights users on 10/28. 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.
Wed 11/269:00 pmIAD - DUB
Nonstop6h 50mAer Lingus
Wed 12/312:15 pmDUB - IAD
Nonstop8h 20mAer Lingus
Deal found 10/28$485
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 11/196:20 pmIAD - DUB
1 stop18h 25mAmerican Airlines
Wed 11/266:40 amDUB - IAD
1 stop13h 55mAmerican Airlines
Deal found 10/29$486
This Delta deal was found by Cheapflights users on 10/28. 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.
Sun 11/912:11 pmIAD - DUB
1 stop15h 34mDelta
Tue 11/181:25 pmDUB - IAD
1 stop31h 40mDelta
Deal found 10/28$487
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 12/210:20 pmIAD - DUB
Nonstop7h 00mUnited Airlines
Tue 12/912:05 pmDUB - IAD
Nonstop8h 15mUnited Airlines
Deal found 10/28$488
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sun 11/910:20 pmIAD - DUB
Nonstop7h 00mUnited Airlines
Tue 11/1812:05 pmDUB - IAD
Nonstop8h 15mUnited Airlines
Deal found 10/28$489
This KLM deal was found by Cheapflights users on 10/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/293:33 pmIAD - DUB
1 stop12h 12mKLM
Fri 11/288:50 amDUB - IAD
1 stop12h 15mKLM
Deal found 10/27$490
This Delta deal was found by Cheapflights users on 10/29. 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.
Mon 11/36:50 pmIAD - DUB
1 stop15h 55mDelta
Fri 11/145:55 amDUB - IAD
1 stop15h 10mDelta
Deal found 10/29$491
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Mon 11/108:30 amIAD - DUB
1 stop18h 40mUnited Airlines
Tue 11/1812:05 pmDUB - IAD
Nonstop8h 15mUnited Airlines
Deal found 10/29$492
This Delta deal was found by Cheapflights users on 10/29. 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.
Sun 11/29:25 pmIAD - DUB
1 stop29h 25mDelta
Fri 11/145:55 amDUB - IAD
1 stop15h 10mDelta
Deal found 10/29$493
This FlightHub deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:30 pmIAD - DUB
1 stop11h 50mTAP AIR PORTUGAL
Mon 12/811:10 amDUB - IAD
1 stop32h 25mTAP AIR PORTUGAL
Deal found 10/28$494
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:30 pmIAD - DUB
1 stop9h 40mMultiple Airlines
Tue 11/189:10 amDUB - IAD
2 stops16h 16mMultiple Airlines
Deal found 10/28$495

Cheap flight deals from Dulles Intl to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Dublin (DUB). 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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$484
(United)

One-way from

$270
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$637

Good round-trip deal

$635 or less

Good one-way deal

$413 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Dublin flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Dublin flights.
From Washington, D.C. Dulles Intl to Dublin
One-way flight from Washington, D.C. Dulles Intl to Dublin
Highest demand for flights based on searches. 12% potential increase in price ($103 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Average for round-trip flights in October 2025
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Dublin.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Dublin.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Dublin 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 October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Dublin that are best for you.

Fly from

Dulles Intl

Fly to

Dublin

Route

Depart

Return

Price

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 11/9

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Tue 11/18

5:00 am-3:50 pm

1 stop15h 50m

$484

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 2/11

6:20 pm-9:40 am

1 stop10h 20m

Dublin

Mon 2/16

5:55 pm-3:35 pm

1 stop26h 40m

$488

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 11/26

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Fri 12/5

12:05 pm-3:20 pm

Nonstop8h 15m

$488

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 11/26

12:11 pm-8:05 am

2 stops14h 54m

Dublin

Wed 12/3

8:50 am-4:05 pm

1 stop12h 15m

$500

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 11/9

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Sun 11/16

5:10 am-3:50 pm

1 stop15h 40m

$532

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 11/30

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Sun 12/7

9:00 am-8:26 pm

1 stop16h 26m

$533

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 2/19

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Mon 2/23

1:20 pm-4:40 pm

1 stop32h 20m

$535

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 11/13

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 11/26

9:00 am-3:46 pm

1 stop11h 46m

$535

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 11/18

5:25 pm-9:55 am

1 stop11h 30m

Dublin

Sun 11/23

9:00 am-9:22 pm

2 stops17h 22m

$537

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 12/4

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 12/10

12:05 pm-3:20 pm

Nonstop8h 15m

$538

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 23 results
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Compare providers for flights from Dulles Intl to Dublin

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

Have a flexible travel schedule? Discover the best time to fly to Dublin 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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Dublin

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Dublin. Price data was last updated on October 24, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Dublin is 57 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $371). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $535). 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 DUB?

Find hourly flight availability from Dulles Intl to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Dublin in the evening. Doing so could potentially save you 24% 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 Washington, D.C. Dulles Intl Airport to Dublin?

The best insider tips for Washington, D.C. Dulles Intl Airport to Dublin 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 Washington, D.C. Dulles Intl Airport to Dublin trip
Airports
IAD

For a smooth departure, use the Aerotrain to navigate between terminals, but be prepared for long walks from the train to certain gates.

Read more about IADby Ramsey Qubein
DUB

Upon arrival at DUB, use the Aircoach or Dublin Express for a quick 30-40 minute ride into central Dublin.

Read more about DUBby James March
Our travel experts
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 Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Aer Lingus from Washington, D.C. Dulles Intl Airport to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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
PLAY
7.0
Good

Overall

7.4

Entertainment

7.1

Boarding

7.7

Food

6.6

Crew

8.1

Comfort

7.3

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 Dulles Intl to Dublin. 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 into for flights to Dublin from Washington, D.C. Dulles Intl?

    Most people fly into Dublin (DUB) if they book a flight to Dublin from Washington, D.C. Dulles Intl. On average, Dublin has 7 inbound flights from Washington, D.C. Dulles Intl per day from 9 airlines. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

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

    Departing from Washington, D.C. Dulles Intl Airport to Dublin will take you 7h. Airlines will cover a distance of 3393 mi. This flight may include one or multiple stops.

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

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Dublin round-trip from $316. Other airlines that can offer you cheap pricing are Icelandair, from $371, and TAP AIR PORTUGAL, from $427. PLAY is 55% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Washington, D.C. Dulles Intl Airport to Dublin on time: American Airlines (83%), Aer Lingus (83%), Iberia (83%).

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

    On average you can expect to pay $1,090 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $374 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $386.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Dublin 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 Dublin?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $371). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $535). 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 Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 9 airlines flying from Dulles Intl to Dublin

Discover the top 9 airlines that operate flights from Dulles Intl to Dublin. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$316Average$495FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$371Average$617FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$427Average$595FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$456Average$494FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$469Average$682FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$484Average$638FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$527Average$836FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$601Average$888FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$696Average$854FlexibilityNo cancel feeOn-time76%

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