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$243+ Cheap flights from Washington, D.C. (WAS) 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — DUB
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Ireland

Cheapest flights from Washington, D.C. to Ireland
Explore the most affordable flight options available from Washington, D.C. to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Travelocity deal was found by Cheapflights users on 12/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:20 pmIAD - DUB
Nonstop7h 00mMultiple Airlines
Sat 1/106:35 pmDUB - IAD
2 stops24h 25mMultiple Airlines
Deal found 12/16$654
This Travelocity deal was found by Cheapflights users on 12/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:30 pmIAD - DUB
1 stop16h 15mSWISS
Sat 1/106:35 pmDUB - IAD
2 stops24h 25mSWISS
Deal found 12/16$663
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3110:20 pmIAD - DUB
Nonstop7h 00mLufthansa
Wed 1/711:45 amDUB - IAD
2 stops31h 15mLufthansa
Deal found 12/16$697
This oojo deal was found by Cheapflights users on 12/16. 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.
Tue 12/307:40 pmBWI - DUB
1 stop9h 35mIcelandair
Sat 1/1011:30 amDUB - BWI
1 stop12h 10mIcelandair
Deal found 12/16$714
This KLM deal was found by Cheapflights users on 12/16. 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.
Tue 12/302:21 pmIAD - DUB
1 stop12h 24mKLM
Wed 1/75:15 pmDUB - IAD
1 stop27h 50mKLM
Deal found 12/16$716
This Cheapflightsfares deal was found by Cheapflights users on 12/17. 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.
Tue 12/3010:20 pmIAD - DUB
Nonstop7h 00mLufthansa
Wed 1/75:20 pmDUB - IAD
2 stops25h 40mLufthansa
Deal found 12/17$731
This CheapOair deal was found by Cheapflights users on 12/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:30 pmIAD - DUB
1 stop16h 15mMultiple Airlines
Wed 1/75:20 pmDUB - IAD
2 stops25h 40mMultiple Airlines
Deal found 12/17$741
This KAYAK deal was found by Cheapflights users on 12/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:55 pmIAD - DUB
2 stops31h 05mLufthansa
Wed 1/711:45 amDUB - IAD
2 stops31h 15mLufthansa
Deal found 12/16$744
This oojo deal was found by Cheapflights users on 12/16. 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.
Tue 12/306:00 amDCA - DUB
2 stops20h 55mBritish Airways
Sat 1/1010:55 amDUB - DCA
2 stops16h 03mBritish Airways
Deal found 12/16$780
This Delta deal was found by Cheapflights users on 12/16. 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.
Thu 12/256:00 amBWI - DUB
2 stops21h 05mDelta
Wed 12/318:50 amDUB - BWI
2 stops20h 45mDelta
Deal found 12/16$836
This oojo deal was found by Cheapflights users on 12/16. 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.
Tue 12/308:35 pmBWI - DUB
1 stop15h 25mBritish Airways
Sat 1/108:40 pmDUB - BWI
2 stops29h 38mBritish Airways
Deal found 12/16$847
This Air Canada deal was found by Cheapflights users on 12/16. 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 12/306:00 amDCA - DUB
2 stops23h 15mAir Canada
Wed 1/73:30 pmDUB - DCA
2 stops35h 26mAir Canada
Deal found 12/16$870

Find flight deals from Washington, D.C. to Ireland

Keep the following information in mind while searching for Washington, D.C. to Ireland flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$469
(oojo)

One-way from

$243
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$885

Good round-trip deal

$687 or less

Good one-way deal

$434 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. (WAS) to Ireland
Search Deals
One-way flight from Washington, D.C. (WAS) to Ireland
Search Deals
High demand for flights, 0% 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 December 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Ireland.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Ireland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 December 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Ireland that are best for you.

Fly from

Washington, D.C.

Fly to

Ireland

Route

Depart

Return

Price

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 1/26

4:50 pm-11:45 am

1 stop13h 55m

Dublin

Fri 1/30

11:30 am-6:50 pm

2 stops36h 20m

$512

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sat 3/21

8:40 pm-10:15 am

1 stop9h 35m

Dublin

Mon 3/30

2:15 pm-7:25 pm

1 stop10h 10m

$559

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 5/6

3:59 pm-8:20 am

1 stop11h 21m

Dublin

Fri 5/15

11:45 am-10:59 pm

1 stop16h 14m

$575

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Sun 3/15

11:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 3/25

8:00 am-3:46 pm

1 stop11h 46m

$581

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 3/10

11:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 3/18

8:00 am-3:46 pm

1 stop11h 46m

$581

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Wed 1/14

2:00 pm-8:10 am

1 stop13h 10m

Dublin

Wed 1/21

9:00 am-6:05 pm

1 stop14h 05m

$585

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 4/15

10:25 pm-10:40 am

Nonstop7h 15m

Dublin

Thu 4/23

9:50 am-3:39 pm

1 stop10h 49m

$585

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Tue 4/14

7:10 pm-7:20 am

Nonstop7h 10m

Dublin

Tue 4/21

9:50 am-8:29 pm

1 stop15h 39m

$585

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 3/16

11:20 pm-10:20 am

Nonstop7h 00m

Dublin

Wed 3/25

12:05 pm-4:20 pm

Nonstop8h 15m

$586

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sun 1/11

8:35 pm-2:20 pm

1 stop12h 45m

Dublin

Tue 1/20

10:55 am-6:45 pm

1 stop12h 50m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
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Best time to book a flight from Washington, D.C. to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Washington, D.C. 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. to Ireland

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Ireland (average of $204). Flying from Washington, D.C. to Ireland in June is currently the most expensive (average of $474). 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 WAS to IE?

Find hourly flight availability from Washington, D.C. 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 December 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Ireland in the evening. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Washington, D.C. to Ireland?

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Ireland. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Washington, D.C. to Ireland flight should consider departing on Sunday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Washington, D.C. to Ireland

Explore weekly flight availability from Washington, D.C. 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 December 18, 2025.

The most flights from WAS to IE0 are scheduled on a Monday (13 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (13 on average).

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

About 20% of weekly flights between Washington, D.C. and Ireland have experienced delays in the past year, with the average delay time being 166 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 16% 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 December 18, 2025.
Peruse reviews from past customers who have flown with United Airlines, American Airlines, and Aer Lingus from Washington, D.C. to Ireland 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
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,093 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
American Airlines
7.2
Good
11,055 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Aer Lingus
7.2
Good
1,399 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
Icelandair
7.0
Good
591 reviews
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
PLAY
7.0
Good
United Airlines
7.4
Good
9,093 reviews

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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. to Ireland?

    For as low as $559, Scandinavian Airlines can have you in Ireland from Washington, D.C. in 9h 35m. There are 3351 mi between Washington, D.C. and Ireland. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $249. Aer Lingus flights start at $382 while deals on United Airlines start at $411 one-way.

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

    The most popular route from Washington, D.C. to Ireland is Washington, D.C. Dulles Intl - Dublin. You may also consider Baltimore/Washington - Dublin or Washington, D.C. Reagan-National - Dublin.

  • What are the most reliable airlines from Washington, D.C. 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. to Ireland on time: Aer Lingus (93%), Qatar Airways (90%), British Airways (89%).

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

    The cheapest flight price from Washington, D.C. to Ireland is $375. On average you can expect to pay $704. The most popular route, (Washington, D.C. Dulles Intl - Dublin), can usually be booked for $410.

  • Can I find deals for flights from Washington, D.C. to Ireland that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Ireland?

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

  • Can I find deals for business class flights from Washington, D.C. to Ireland?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Ireland?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Ireland (average of $204). Flying from Washington, D.C. to Ireland in June is currently the most expensive (average of $474). 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 Washington, D.C. to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Istanbul flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Dulles Intl to Madrid flights
Dulles Intl to Lisbon flights
Dulles Intl to London City flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to Dublin flights
Dulles Intl to Athens flights
Dulles Intl to Stansted flights
Dulles Intl to Orly flights
Reagan-National to Gatwick flights
Dulles Intl to Amsterdam flights
Reagan-National to Charles de Gaulle flights
Dulles Intl to Frankfurt flights
Reagan-National to Orly flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Reagan-National to Istanbul flights
Dulles Intl to Zurich flights
Reagan-National to Madrid flights
Dulles Intl to Luton flights
Dulles Intl to Edinburgh flights
Dulles Intl to Keflavik Intl flights
Dulles Intl to Bruxelles-National flights
Reagan-National to Lisbon flights
Reagan-National to Barcelona-El Prat flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Vienna flights
Dulles Intl to Malpensa flights
Reagan-National to Dublin flights
Reagan-National to Athens flights
Dulles Intl to Geneva flights
Reagan-National to Keflavik Intl flights
Dulles Intl to Copenhagen flights
Dulles Intl to Vicenza flights
Dulles Intl to Linate flights
Dulles Intl to Munich flights
Reagan-National to Malpensa flights
Reagan-National to Amsterdam flights
Dulles Intl to Beauvais-Tille flights
Dulles Intl to Oslo Gardermoen flights
Reagan-National to Frankfurt flights
Reagan-National to Linate flights
Dulles Intl to Glasgow Intl flights
Dulles Intl to Frederic Chopin flights
Reagan-National to Sabiha Gokcen flights
Reagan-National to Luton flights

Top 10 airlines flying from Washington, D.C. to Ireland

Discover the top 10 airlines that operate flights from Washington, D.C. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$791FlexibilityNo cancel feeOn-timeN/A
PLAYCheapest$297Average$497FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$359Average$710FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$371Average$620FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$427Average$595FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$435Average$878FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$456Average$503FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$477Average$673FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$484Average$774FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$496Average$764FlexibilityNo cancel feeOn-time69%

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