Ireland

$256+ Cheap flights from Dulles Intl (IAD) to Ireland

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
Jul 3 — Jul 101
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Cheap flight deals from Dulles Intl to Ireland

Cheapest flights from Dulles Intl to Ireland
Explore the most affordable flight options available from Dulles Intl to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 3, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Thu 10/157:50 pm
DUB
-
IAD
2 stops26h 10m
Scandinavian Airlines
Deal found 6/2$681
This Kiwi.com deal was found by Cheapflights users on 6/1. 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.
Fri 8/218:30 pm
IAD
-
DUB
1 stop11h 45m
Multiple Airlines
Wed 9/29:35 am
DUB
-
IAD
2 stops32h 18m
Multiple Airlines
Deal found 6/1$683
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3011:25 am
IAD
-
DUB
1 stop16h 55m
Multiple Airlines
Wed 9/910:40 am
DUB
-
IAD
1 stop29h 05m
Multiple Airlines
Deal found 6/2$684
This FlightHub deal was found by Cheapflights users on 6/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:20 pm
IAD
-
DUB
2 stops32h 50m
Scandinavian Airlines
Sat 9/197:05 pm
DUB
-
IAD
1 stop26h 55m
Scandinavian Airlines
Deal found 6/2$685
This FlightHub deal was found by Cheapflights users on 5/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:20 pm
IAD
-
DUB
2 stops17h 45m
Scandinavian Airlines
Wed 9/3012:40 pm
DUB
-
IAD
1 stop33h 20m
Scandinavian Airlines
Deal found 5/30$688
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:50 pm
IAD
-
DUB
1 stop14h 05m
Multiple Airlines
Tue 9/810:40 am
DUB
-
IAD
1 stop29h 05m
Multiple Airlines
Deal found 6/2$689
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:50 pm
IAD
-
DUB
2 stops17h 45m
Multiple Airlines
Fri 8/2112:15 pm
DUB
-
IAD
1 stop27h 30m
Multiple Airlines
Deal found 6/2$690
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:30 am
IAD
-
DUB
2 stops15h 50m
Multiple Airlines
Fri 7/1712:15 pm
DUB
-
IAD
1 stop32h 01m
Multiple Airlines
Deal found 6/2$691
This Mytrip deal was found by Cheapflights users on 6/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:45 pm
IAD
-
DUB
3 stops35h 35m
Multiple Airlines
Wed 8/199:40 am
DUB
-
IAD
3 stops34h 21m
Multiple Airlines
Deal found 6/1$692
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3011:25 am
IAD
-
DUB
1 stop16h 55m
Multiple Airlines
Tue 9/810:40 am
DUB
-
IAD
1 stop29h 05m
Multiple Airlines
Deal found 6/2$693
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Sat 8/83:39 pm
IAD
-
SNN
1 stop10h 51m
United Airlines
Fri 8/219:30 am
SNN
-
IAD
1 stop13h 07m
United Airlines
Deal found 6/3$767
This Air France deal was found by Cheapflights users on 6/3. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:54 pm
IAD
-
SNN
2 stops15h 16m
Multiple Airlines
Fri 8/211:05 pm
SNN
-
IAD
1 stop10h 28m
Multiple Airlines
Deal found 6/3$772

Find flight deals from Dulles Intl to Ireland

Keep the following information in mind while searching for Dulles Intl to Ireland flight deals. Data was last updated June 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$681
(Cheapflightsfares)

One-way from

$256
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$930

Good round-trip deal

$971 or less

Good one-way deal

$521 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Dublin flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Dublin flights.
From Washington, D.C. Dulles Intl to Ireland
One-way flight from Washington, D.C. Dulles Intl to Ireland
Highest demand for flights based on searches. 15% potential increase in price ($123 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Average for round-trip flights in June 2026
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Ireland.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Ireland.

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Ireland 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 June 3, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Thu 9/24

8:20 pm-7:05 pm

2 stops17h 45m

Dublin

Sun 10/4

7:15 pm-5:00 pm

2 stops26h 45m

$740
Quickest round-trip

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 8/14

10:35 pm-10:40 am

Nonstop7h 05m

Dublin

Mon 8/24

9:50 am-3:01 pm

1 stop10h 11m

$747

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 8/10

10:35 pm-10:40 am

Nonstop7h 05m

Dublin

Wed 8/19

9:20 am-9:18 pm

2 stops16h 58m

$752

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 9/1

10:25 pm-5:00 pm

1 stop13h 35m

Dublin

Wed 9/9

12:50 pm-8:20 pm

1 stop12h 30m

$764

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Sun 8/9

7:19 pm-11:10 am

1 stop10h 51m

Shannon

Fri 8/21

1:05 pm-11:26 pm

2 stops15h 21m

$772

Washington, D.C.Shannon

IAD - SNN

IADSNN

Washington, D.C. Dulles Intl

Tue 9/1

7:15 pm-11:10 am

1 stop10h 55m

Shannon

Tue 9/8

1:05 pm-7:16 pm

1 stop11h 11m

$776

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 9/5

8:20 pm-10:25 am

2 stops33h 05m

Dublin

Sat 9/19

8:00 pm-5:00 pm

2 stops26h 00m

$777

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 7/11

8:15 am-11:10 am

1 stop21h 55m

Dublin

Tue 7/21

9:50 am-11:12 am

1 stop30h 22m

$779

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Fri 7/17

10:29 pm-7:30 am

1 stop28h 01m

Dublin

Mon 7/27

9:20 am-7:44 am

2 stops27h 24m

$784

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 8/5

10:29 pm-11:10 am

1 stop31h 41m

Dublin

Sun 8/16

9:20 am-7:43 am

2 stops27h 23m

$784

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/30

Showing 1-10 of 52 resultsSorted by cheapest first
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2
3
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6

Best time to book a flight from Dulles Intl to Ireland

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

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

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ireland (average of $358). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $564). 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 IE?

Find hourly flight availability from Dulles Intl to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 3, 2026.

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

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

Explore weekly flight availability from Dulles Intl to Ireland. 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 June 3, 2026.

The most flights from IAD to IE0 are scheduled on a Monday (15 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (11 on average).

How often are flights from Washington, D.C. to Ireland delayed?

About 16% of weekly flights between Washington, D.C. and Ireland have experienced delays in the past year, with the average delay time being 181 minutes.

What is the most punctual flight time for Washington, D.C. to Ireland flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Ireland flights?

Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 12% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Ireland, you should look to book at least 3 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated June 3, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Ireland, such as United Airlines,Aer Lingus, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Crew

8.1

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Washington, D.C. Dulles Intl Airport to Ireland?

    Airlines like Scandinavian Airlines, United Airlines, and British Airways fly from Washington, D.C. Dulles Intl Airport to Ireland in about 7h 05m. The time it takes to get you to your destination can typically vary by up to 10h 40m. The distance from Washington, D.C. Dulles Intl Airport to Ireland is about 3393 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Ireland are Icelandair ($248), Aer Lingus ($373), and United Airlines ($404).

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Ireland?

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

    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 Ireland on time: Qatar Airways (93%), American Airlines (93%), Aer Lingus (93%).

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

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Ireland? While on average our users pay $1,495, our data indicates the cheapest price to be $420. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around $431.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Ireland (average of $358). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $564). 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

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Alternative routes for Dulles Intl to Ireland

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Dulles Intl to Ireland

Discover the top 10 airlines that operate flights from Dulles Intl to Ireland. 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 June 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$1,442FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$364Average$612FlexibilityNo cancel feeOn-time76%
IberiaCheapest$391Average$843FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$427Average$578FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$445Average$714FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$456Average$507FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$467Average$721FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$511Average$701FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$531Average$882FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$577Average$606FlexibilityNo cancel feeOn-time77%

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