Dublin

$307+ 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 8/1. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
Jul 7 — Jul 141
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or March, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Monday

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 July 2, 2025.

Round-trip from

$481
(oojo)

One-way from

$307
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$830

Good round-trip deal

$603 or less

Good one-way deal

$493 or less
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. 15% potential increase in price ($129 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Average for round-trip flights in July 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.

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 July 2, 2025.

This oojo deal was found by Cheapflights users on 6/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:05 pmIAD - DUB
2 stops16h 10mScandinavian Airlines
Sun 10/125:00 pmDUB - IAD
1 stop31h 59mScandinavian Airlines
Deal found 6/30$481
This United Airlines deal was found by Cheapflights users on 7/2. 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 8/115:31 pmIAD - DUB
1 stop9h 14mUnited Airlines
Fri 8/2211:35 amDUB - IAD
1 stop10h 55mUnited Airlines
Deal found 7/2$483
This TAP AIR PORTUGAL deal was found by Cheapflights users on 6/30. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:00 pmIAD - DUB
1 stop26h 05mTAP AIR PORTUGAL
Sun 10/126:50 pmDUB - IAD
1 stop31h 00mTAP AIR PORTUGAL
Deal found 6/30$484
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Sun 8/1010:40 pmIAD - DUB
1 stop12h 05mAer Lingus
Tue 8/1912:50 pmDUB - IAD
Nonstop8h 00mAer Lingus
Deal found 7/1$485
This British Airways deal was found by Cheapflights users on 6/30. 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.
Mon 8/1810:40 pmIAD - DUB
1 stop11h 00mBritish Airways
Tue 8/2610:25 amDUB - IAD
1 stop14h 45mBritish Airways
Deal found 6/30$489
This Icelandair deal was found by Cheapflights users on 6/30. 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.
Sat 9/68:30 pmIAD - DUB
1 stop9h 35mIcelandair
Thu 9/252:15 pmDUB - IAD
1 stop10h 05mIcelandair
Deal found 6/30$494
This Delta deal was found by Cheapflights users on 7/2. 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 8/105:23 pmIAD - DUB
1 stop11h 37mDelta
Wed 8/209:10 amDUB - IAD
1 stop12h 10mDelta
Deal found 7/2$497
This Lufthansa deal was found by Cheapflights users on 7/1. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1010:20 pmIAD - DUB
1 stop13h 35mLufthansa
Tue 8/199:00 amDUB - IAD
1 stop11h 50mLufthansa
Deal found 7/1$498
This Iberia deal was found by Cheapflights users on 6/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/65:20 pmIAD - DUB
Nonstop6h 50mIberia
Wed 9/1012:50 pmDUB - IAD
Nonstop8h 00mIberia
Deal found 6/30$513
This Aer Lingus deal was found by Cheapflights users on 7/2. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:05 pmIAD - DUB
Nonstop6h 50mMultiple Airlines
Sun 12/141:15 pmDUB - IAD
1 stop14h 50mMultiple Airlines
Deal found 7/2$519

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 July 2, 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

Fri 10/3

10:05 pm-9:25 am

1 stop30h 20m

Dublin

Sun 10/12

10:15 am-7:59 pm

1 stop14h 44m

$481

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 8/11

5:31 pm-7:45 am

1 stop9h 14m

Dublin

Wed 8/20

11:35 am-5:30 pm

1 stop10h 55m

$483

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 10/3

5:00 pm-12:05 am

1 stop26h 05m

Dublin

Sun 10/12

6:50 pm-8:50 pm

1 stop31h 00m

$484

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

10:40 pm-3:45 pm

1 stop12h 05m

Dublin

Tue 8/19

12:50 pm-3:50 pm

Nonstop8h 00m

$485

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 8/18

10:40 pm-2:40 pm

1 stop11h 00m

Dublin

Tue 8/26

10:25 am-8:10 pm

1 stop14h 45m

$489

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 9/6

8:30 pm-11:05 am

1 stop9h 35m

Dublin

Thu 9/25

2:15 pm-7:20 pm

1 stop10h 05m

$494

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

5:23 pm-10:00 am

1 stop11h 37m

Dublin

Tue 8/19

9:10 am-7:15 pm

1 stop15h 05m

$497

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 8/10

10:20 pm-4:55 pm

1 stop13h 35m

Dublin

Tue 8/19

9:00 am-3:50 pm

1 stop11h 50m

$498

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 8/6

5:20 pm-5:10 am

Nonstop6h 50m

Dublin

Wed 9/10

12:50 pm-3:50 pm

Nonstop8h 00m

$513

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 12/1

5:05 pm-4:55 am

Nonstop6h 50m

Dublin

Sun 12/14

1:15 pm-11:05 pm

1 stop14h 50m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 15 results
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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

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 June 27, 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport to Dublin is 37 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $509). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $929). 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 July 2, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Dublin in the afternoon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Dublin

Explore weekly flight availability from Dulles Intl to Dublin. 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 July 2, 2025.

The most flights from IAD to DUB are scheduled on a Tuesday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

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 July 2, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines 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.
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 12 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.

  • 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 $481. Other airlines that can offer you cheap pricing are United Airlines, from $483, and Aer Lingus, from $485. Scandinavian Airlines is 32% cheaper than the average price of flights available within the next 90 days to this destination.

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

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $310. However, be on the lookout for offers from TAP AIR PORTUGAL and Aer Lingus, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Dublin for a low price.

  • 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: SWISS (70%), Lufthansa (70%), American Airlines (64%).

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

    On average you can expect to pay $2,082 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $398 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $349.

  • 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, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $509). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $929). 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
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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$288Average$410FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$322Average$496FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$424Average$669FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$434Average$644FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$470Average$692FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$484Average$644FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$557Average$884FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$648Average$891FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$661Average$893FlexibilityNo cancel feeOn-time76%

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