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$260+ 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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
Sep 12 — Sep 191
Sat 9/12
Sat 9/19
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Dublin are usually found in January or November, booked 4 days in advance, depart on a Wednesday or Sunday and return on a Monday

Cheap 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 August 13, 2026.

This Mytrip deal was found by Cheapflights users on 8/9. 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.
Sun 10/118:20 pm -
2 stops17h 10m
Sat 10/178:00 pm -
2 stops26h 00m
Deal found 8/9$639
This deal was found by Cheapflights users on 8/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:40 pm -
1 stop9h 35m
Wed 11/411:30 am -
1 stop12h 00m
Deal found 8/9$641
This Gotogate deal was found by Cheapflights users on 8/11. 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.
Sat 10/318:40 pm -
1 stop9h 35m
Fri 11/611:30 am -
1 stop12h 00m
Deal found 8/11$642
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:40 pm -
1 stop9h 35m
Mon 11/911:30 am -
1 stop12h 00m
Deal found 8/11$643
This Icelandair deal was found by Cheapflights users on 8/12. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:30 pm -
1 stop11h 45m
Sat 11/711:30 am -
1 stop12h 00m
Deal found 8/12$645
This Gotogate deal was found by Cheapflights users on 8/8. 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.
Tue 10/135:05 pm -
1 stop11h 55m
Tue 10/206:50 pm -
1 stop25h 20m
Deal found 8/8$648
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 11/87:40 pm -
1 stop9h 35m
Sun 11/1511:30 am -
1 stop12h 00m
Deal found 8/11$649
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Fri 12/257:40 pm -
1 stop9h 35m
Mon 1/1811:30 am -
1 stop12h 00m
Deal found 8/8$650
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:40 pm -
1 stop9h 35m
Tue 11/1711:30 am -
1 stop12h 00m
Deal found 8/12$651
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:30 pm -
1 stop19h 50m
Sat 11/74:15 am -
1 stop21h 20m
Deal found 8/11$652
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Fri 9/258:30 pm -
1 stop11h 45m
Wed 9/3012:15 pm -
1 stop15h 00m
Deal found 8/11$654

Find 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 August 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$639
(Mytrip)

One-way from

$260
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$705

Good round-trip deal

$767 or less

Good one-way deal

$456 or less
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Dublin flights.
Search Deals
From Washington, D.C. Dulles Intl to Dublin
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Dublin
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Dublin.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Dublin.
Search Deals

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 August 13, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Mon 11/2

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 11/18

12:05 pm-3:20 pm

Nonstop8h 15m

$691

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Tue 12/1

12:35 pm-2:30 pm

2 stops20h 55m

Dublin

Tue 12/8

8:50 am-3:45 pm

1 stop11h 55m

$698

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Sat 11/28

10:35 pm-9:55 am

1 stop30h 20m

Dublin

Fri 1/22

10:40 am-9:05 pm

1 stop15h 25m

$706

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Mon 12/28

5:29 pm-7:30 am

1 stop9h 01m

Dublin

Tue 1/12

10:40 am-7:09 pm

1 stop13h 29m

$706

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Wed 12/30

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 1/6

12:10 pm-5:00 pm

1 stop33h 50m

$718

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Mon 9/21

10:35 pm-10:40 am

Nonstop7h 05m

Dublin

Wed 9/30

5:55 am-1:35 pm

1 stop12h 40m

$721

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Mon 11/2

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Mon 11/16

12:05 pm-3:20 pm

Nonstop8h 15m

$741

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Wed 11/4

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Mon 11/9

9:00 am-3:45 pm

1 stop11h 45m

$768

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Tue 9/1

6:16 am-11:10 am

1 stop23h 54m

Dublin

Tue 9/8

9:20 am-11:13 am

1 stop30h 53m

$797

Washington, D.C.Dublin

IAD Washington, D.C. Dulles Intl - DUB Dublin

IADDUB

Washington, D.C. Dulles Intl

Fri 12/25

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Thu 12/31

12:05 pm-3:20 pm

Nonstop8h 15m

$801

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
GotogatePrice Accuracy2 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Dublin flight deals on Cheapflights vs. FlightHub >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 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 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?

The best time to book flights from Washington, D.C. Dulles Intl Airport to Dublin is 3 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $606). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $1,090). 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 August 13, 2026.

When flying from Washington, D.C. Dulles Intl Airport to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Dublin flights typically cost between $645 and $871 in October.
The cheapest round-trip price found within the last 5 days was $639 on Multiple Airlines (Oct 11-Oct 17).

The best insider tips for Washington, D.C. Dulles Intl Airport to Dublin 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 Washington, D.C. Dulles Intl Airport to Dublin trip
Our travel experts
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 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 August 13, 2026.
Peruse reviews from past customers who have flown with United Airlines,Aer Lingus, andAmerican 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.
United Airlines
7.4
Good
10,114 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
United Airlines
7.4
Good
10,114 reviews
United Airlines
7.4
Good
10,114 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Aer Lingus
7.3
Good
1,697 reviews
United Airlines
7.4
Good
10,114 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
American Airlines
7.1
Good
11,923 reviews
United Airlines
7.4
Good
10,114 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Icelandair
6.9
Okay
729 reviews
United Airlines
7.4
Good
10,114 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.
Lufthansa
6.8
Okay
8,182 reviews
United Airlines
7.4
Good
10,114 reviews

Entertainment

7.1

Overall

7.4

Food

6.7

Boarding

7.7

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

IAD - TYS

It was a short flight on a small express plane, so no time for amenities. Quickly on, quickly off. No complaints.

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 13 inbound flights from Washington, D.C. Dulles Intl per day from 8 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 $364. Other airlines that can offer you cheap pricing are Iberia, from $391, and American Airlines, from $445. Icelandair is 52% 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 $165. However, be on the lookout for offers from Aer Lingus and Lufthansa, 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: Qatar Airways (85%), American Airlines (82%), Aer Lingus (82%).

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

    On average you can expect to pay $2,312 for a flight from Washington, D.C. Dulles Intl Airport to Dublin. The cheapest flight overall is $411 while the most popular route, (Washington, D.C. Dulles Intl - Dublin) is currently priced at $456.

  • 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, January is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Dublin (average of $606). Flying from Washington, D.C. Dulles Intl Airport to Dublin in June is currently the most expensive (average of $1,090). 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
Castleknock

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Alternative routes for Dulles Intl to Dublin

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

Top 8 airlines flying from Dulles Intl to Dublin

Discover the top 8 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 August 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$364Average$614FlexibilityNo cancel feeOn-time76%
IberiaCheapest$391Average$843FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$445Average$719FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$456Average$518FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$485Average$764FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$575Average$870FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$577Average$606FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$590Average$853FlexibilityNo cancel feeOn-time76%

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