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$222+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — DUB
Mar 29 — Apr 51
Sun 3/29
Sun 4/5
1 adult, Economy
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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 February 27, 2026.

This oojo deal was found by Cheapflights users on 2/25. 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.
Thu 4/235:45 pm
IAD
-
DUB
1 stop25h 20m
TAP AIR PORTUGAL
Sun 4/265:30 am
DUB
-
IAD
1 stop14h 40m
TAP AIR PORTUGAL
Deal found 2/25$468
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 4/198:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sat 4/2510:15 am
DUB
-
IAD
1 stop11h 45m
Scandinavian Airlines
Deal found 2/24$474
This oojo deal was found by Cheapflights users on 2/24. 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.
Thu 4/235:45 pm
IAD
-
DUB
1 stop25h 20m
TAP AIR PORTUGAL
Wed 4/2910:45 am
DUB
-
IAD
1 stop33h 25m
TAP AIR PORTUGAL
Deal found 2/24$475
This Bravofly deal was found by Cheapflights users on 2/23. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Wed 4/2911:00 am
DUB
-
IAD
2 stops35h 00m
Scandinavian Airlines
Deal found 2/23$477
This Super.com deal was found by Cheapflights users on 2/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Tue 4/217:05 pm
DUB
-
IAD
1 stop26h 55m
Scandinavian Airlines
Deal found 2/25$478
This CrystalTravel deal was found by Cheapflights users on 2/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sat 5/28:00 pm
DUB
-
IAD
2 stops26h 00m
Scandinavian Airlines
Deal found 2/25$481
This oojo deal was found by Cheapflights users on 2/25. 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.
Sun 4/128:20 pm
IAD
-
DUB
2 stops17h 45m
Scandinavian Airlines
Fri 4/2411:10 am
DUB
-
IAD
2 stops34h 50m
Scandinavian Airlines
Deal found 2/25$484
This Kiwi.com deal was found by Cheapflights users on 2/23. 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 4/98:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Sun 4/1910:15 am
DUB
-
IAD
1 stop11h 45m
Scandinavian Airlines
Deal found 2/23$485
This oojo deal was found by Cheapflights users on 2/25. 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.
Sat 4/258:20 pm
IAD
-
DUB
1 stop17h 00m
Scandinavian Airlines
Fri 5/112:40 pm
DUB
-
IAD
1 stop33h 20m
Scandinavian Airlines
Deal found 2/25$486
This Delta deal was found by Cheapflights users on 2/24. 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 3/237:50 pm
IAD
-
ORK
1 stop15h 10m
Delta
Wed 4/86:15 am
ORK
-
IAD
1 stop14h 20m
Delta
Deal found 2/24$594
This Delta deal was found by Cheapflights users on 2/25. 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.
Wed 3/187:50 pm
IAD
-
ORK
1 stop15h 10m
Delta
Wed 3/2511:15 am
ORK
-
IAD
1 stop33h 50m
Delta
Deal found 2/25$595
This United Airlines deal was found by Cheapflights users on 2/23. 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 4/195:41 pm
IAD
-
SNN
1 stop11h 34m
United Airlines
Tue 5/512:30 pm
SNN
-
IAD
1 stop13h 41m
United Airlines
Deal found 2/23$599

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 February 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$468
(oojo)

One-way from

$222
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$673

Good round-trip deal

$636 or less

Good one-way deal

$407 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Dublin flights.
Search Deals
From Washington, D.C. Dulles Intl to Ireland
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Ireland
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Ireland.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Ireland.
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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 February 27, 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

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 3/9

11:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 3/18

12:05 pm-4:20 pm

Nonstop8h 15m

$587

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 3/2

12:24 pm-9:20 am

2 stops15h 56m

Dublin

Tue 3/10

5:55 am-7:19 pm

2 stops17h 24m

$592

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Wed 8/12

9:45 pm-2:40 pm

1 stop11h 55m

Cork

Wed 8/19

5:15 pm-3:35 pm

1 stop27h 20m

$594

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Mon 3/23

7:50 pm-3:00 pm

1 stop15h 10m

Cork

Wed 4/8

6:15 am-3:35 pm

1 stop14h 20m

$594

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 5/5

5:42 pm-11:10 am

1 stop12h 28m

Dublin

Tue 5/12

8:50 am-11:50 am

Nonstop8h 00m

$598

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 4/1

10:25 pm-10:40 am

Nonstop7h 15m

Dublin

Thu 4/9

9:50 am-3:39 pm

1 stop10h 49m

$610

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Wed 8/12

7:59 pm-2:40 pm

2 stops13h 41m

Cork

Wed 8/19

3:25 pm-7:35 pm

1 stop33h 10m

$618

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 3/21

10:15 pm-3:20 pm

1 stop37h 05m

Dublin

Thu 3/26

4:30 pm-12:45 pm

1 stop24h 15m

$631

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sat 3/7

10:20 pm-10:20 am

Nonstop7h 00m

Dublin

Tue 3/17

12:05 pm-4:20 pm

Nonstop8h 15m

$637

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 3/17

5:35 pm-7:30 am

1 stop9h 55m

Dublin

Mon 3/23

12:05 pm-4:20 pm

Nonstop8h 15m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/25

Showing 1-10 of 56 resultsSorted by cheapest first
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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 $371). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $542). 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 February 27, 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 February 27, 2026.

The most flights from IAD to IE0 are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

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

About 18% of weekly flights between Washington, D.C. and Ireland have experienced delays in the past year, with the average delay time being 172 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 14% of flights being delayed.

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 February 27, 2026.
Read through reviews of airlines operating flights from Washington, D.C. Dulles Intl Airport to Ireland, such as United Airlines, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,358 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

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
9,358 reviews
United Airlines
7.4
Good
9,358 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

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
American Airlines
7.2
Good
11,361 reviews
United Airlines
7.4
Good
9,358 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

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
7.2
Good
1,464 reviews
United Airlines
7.4
Good
9,358 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

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
7.1
Good
617 reviews
United Airlines
7.4
Good
9,358 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

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
Lufthansa
6.8
Okay
7,816 reviews
United Airlines
7.4
Good
9,358 reviews

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

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 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 United Airlines, Delta, and KLM fly from Washington, D.C. Dulles Intl Airport to Ireland in about 7h. The time it takes to get you to your destination can typically vary by up to 8h 56m. 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 ($379), and United Airlines ($411).

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

    The most popular flight routes from Washington, D.C. Dulles Intl Airport to Ireland are Washington, D.C. Dulles Intl - Dublin, Washington, D.C. Dulles Intl - Shannon and Washington, D.C. Dulles Intl - Cork.

  • 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 (91%), American Airlines (90%), Aer Lingus (90%).

  • 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 $1,111, our data indicates the cheapest price to be $293. The most popular route (Washington, D.C. Dulles Intl - Dublin), is priced around $468.

  • 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 $371). Flying from Washington, D.C. Dulles Intl Airport to Ireland in June is currently the most expensive (average of $542). 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.
Dulles Intl to Heathrow flights
Baltimore to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Madrid flights
Dulles Intl to Lisbon flights
Dulles Intl to Dublin flights
Dulles Intl to Istanbul flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Dulles Intl to Stansted flights
Dulles Intl to Athens flights
Dulles Intl to Barcelona-El Prat flights
Baltimore to Gatwick flights
Dulles Intl to Amsterdam flights
Dulles Intl to Frankfurt flights
Reagan-National to Charles de Gaulle flights
Baltimore to Charles de Gaulle flights
Dulles Intl to Orly flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Madrid flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Baltimore to Madrid flights
Dulles Intl to Keflavik Intl flights
Dulles Intl to Edinburgh flights
Baltimore to Dublin flights
Dulles Intl to Bruxelles-National flights
Baltimore to Lisbon flights
Dulles Intl to Vicenza flights
Baltimore to Athens flights
Dulles Intl to Luton flights
Dulles Intl to Zurich flights
Reagan-National to Lisbon flights
Baltimore to Istanbul flights
Dulles Intl to Munich flights
Baltimore to Keflavik Intl flights
Dulles Intl to Copenhagen flights
Baltimore to Barcelona-El Prat flights
Dulles Intl to Sabiha Gokcen flights
Reagan-National to Keflavik Intl flights
Reagan-National to Barcelona-El Prat flights

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 February 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$1,009FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$349Average$605FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$371Average$592FlexibilityNo cancel feeOn-time76%
IberiaCheapest$391Average$651FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$427Average$595FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$435Average$790FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$456Average$486FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$468Average$682FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$483Average$606FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$523Average$768FlexibilityNo cancel feeOn-time69%

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