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$170+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — DUB
Jul 30 — Aug 61
Thu 7/30
Thu 8/6
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 June 30, 2026.

This Justfly.com deal was found by Cheapflights users on 6/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Thu 9/172:15 pm
DUB
-
BWI
1 stop10h 10m
Icelandair
Deal found 6/29$508
This Cheapflightsfares deal was found by Cheapflights users on 6/29. 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 9/228:30 pm
BWI
-
DUB
1 stop9h 35m
Icelandair
Sat 10/32:15 pm
DUB
-
BWI
1 stop10h 10m
Icelandair
Deal found 6/29$521
This Gotogate deal was found by Cheapflights users on 6/26. 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.
Sun 10/118:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Sun 10/1812:15 pm
DUB
-
BWI
1 stop12h 10m
Icelandair
Deal found 6/26$527
This Mytrip deal was found by Cheapflights users on 6/28. 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.
Fri 10/168:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Thu 10/2911:30 am
DUB
-
BWI
1 stop12h 10m
Icelandair
Deal found 6/28$531
This Mytrip deal was found by Cheapflights users on 6/27. 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 9/298:30 pm
BWI
-
DUB
1 stop9h 35m
Icelandair
Tue 10/62:15 pm
DUB
-
BWI
1 stop13h 00m
Icelandair
Deal found 6/27$532
This oojo deal was found by Cheapflights users on 6/25. 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 10/188:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Mon 10/261:15 pm
DUB
-
BWI
1 stop10h 25m
Icelandair
Deal found 6/25$533
This Gotogate deal was found by Cheapflights users on 6/28. 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 10/38:30 pm
BWI
-
DUB
1 stop9h 35m
Icelandair
Wed 10/1412:15 pm
DUB
-
BWI
1 stop12h 10m
Icelandair
Deal found 6/28$536
This oojo deal was found by Cheapflights users on 6/28. 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 10/68:30 pm
BWI
-
DUB
1 stop9h 35m
Icelandair
Sat 10/102:15 pm
DUB
-
BWI
1 stop13h 00m
Icelandair
Deal found 6/28$537
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Fri 10/1612:15 pm
DUB
-
BWI
1 stop12h 10m
Icelandair
Deal found 6/25$538
This FlightHub deal was found by Cheapflights users on 6/28. 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 10/198:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Wed 10/2811:30 am
DUB
-
BWI
1 stop12h 10m
Icelandair
Deal found 6/28$539
This deal was found by Cheapflights users on 6/26. 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.
Fri 10/28:30 pm
BWI
-
DUB
1 stop11h 45m
Icelandair
Sat 10/102:15 pm
DUB
-
BWI
1 stop13h 00m
Icelandair
Deal found 6/26$541
This CheapOair deal was found by Cheapflights users on 6/29. 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.
Mon 7/610:20 pm
IAD
-
DUB
2 stops18h 55m
Lufthansa
Thu 8/65:45 pm
DUB
-
IAD
2 stops24h 50m
Lufthansa
Deal found 6/29$600

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 June 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$480
(United Airlines)

One-way from

$170
(oojo)

Popular in

June

Cheapest in

January

Average price

$1,087

Good round-trip deal

$921 or less

Good one-way deal

$508 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
Highest demand for flights based on searches. 21% potential increase in price ($194 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 30, 2026.
Use the filters below to find and compare flights from Washington, D.C. 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

Fri 8/7

7:15 pm-7:20 am

Nonstop7h 05m

Dublin

Thu 8/13

9:50 am-7:01 pm

1 stop14h 11m

$602
Quickest round-trip

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Mon 8/31

7:15 pm-7:20 am

Nonstop7h 05m

Dublin

Wed 9/9

9:20 am-4:07 pm

1 stop11h 47m

$607

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Mon 9/7

9:30 pm-2:30 pm

1 stop12h 00m

Dublin

Mon 9/28

8:30 am-7:40 pm

1 stop16h 10m

$674

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Sun 9/6

9:35 pm-7:35 pm

1 stop17h 00m

Dublin

Wed 9/30

10:30 am-5:15 pm

1 stop11h 45m

$674

Washington, D.C.Dublin

IAD - DUB

IADDUB

Washington, D.C. Dulles Intl

Wed 9/2

6:16 am-7:45 am

2 stops20h 29m

Dublin

Mon 9/14

9:20 am-11:52 am

2 stops31h 32m

$682

BaltimoreDublin

BWI - DUB

BWIDUB

Baltimore/Washington

Fri 9/4

5:40 pm-7:30 am

2 stops32h 50m

Dublin

Mon 9/14

9:20 am-1:58 pm

2 stops33h 38m

$683

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Tue 9/1

12:40 pm-8:15 am

2 stops14h 35m

Dublin

Mon 9/7

9:50 am-3:38 pm

1 stop10h 48m

$695

Washington, D.C.Cork

IAD - ORK

IADORK

Washington, D.C. Dulles Intl

Mon 8/3

5:40 pm-1:00 pm

1 stop14h 20m

Cork

Tue 8/18

1:45 pm-4:45 pm

1 stop32h 00m

$701

Washington, D.C.Shannon

DCA - SNN

DCASNN

Washington, D.C. Reagan-National

Tue 8/18

8:20 pm-10:15 am

1 stop8h 55m

Shannon

Fri 8/28

9:30 am-7:09 pm

1 stop14h 39m

$708

Washington, D.C.Dublin

DCA - DUB

DCADUB

Washington, D.C. Reagan-National

Mon 8/3

1:25 pm-8:20 am

1 stop13h 55m

Dublin

Wed 8/19

10:40 am-7:05 pm

1 stop13h 25m

$710

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/24

Showing 1-10 of 60 resultsSorted by cheapest first
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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 $123). Flying from Washington, D.C. to Ireland in June is currently the most expensive (average of $4,793). 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 June 30, 2026.

When flying from Washington, D.C. 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. 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 June 30, 2026.

The most flights from WAS to IE0 are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, 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 187 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. to Ireland?

The price you pay for your flight from Washington, D.C. to Ireland may vary depending on when you book. For the best chance of a lower fare, look to book 58 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 30, 2026.
Peruse reviews from past customers who have flown with United Airlines,Aer Lingus, andAmerican Airlines 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
9,901 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
9,901 reviews
United Airlines
7.4
Good
9,901 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
1,632 reviews
United Airlines
7.4
Good
9,901 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
11,764 reviews
United Airlines
7.4
Good
9,901 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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.
JetBlue
7.1
Good
3,012 reviews
United Airlines
7.4
Good
9,901 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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
7.0
Good
694 reviews
United Airlines
7.4
Good
9,901 reviews

Food

6.6

Entertainment

7.1

Crew

8.1

Comfort

7.3

Boarding

7.7

Overall

7.4

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 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 $602, United Airlines can have you in Ireland from Washington, D.C. in 7h 05m. There are 3393 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 $308. Aer Lingus flights start at $374 while deals on United Airlines start at $404 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: Qatar Airways (90%), American Airlines (88%), Aer Lingus (88%).

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

    The cheapest flight price from Washington, D.C. to Ireland is $399. On average you can expect to pay $2,355. 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 $123). Flying from Washington, D.C. to Ireland in June is currently the most expensive (average of $4,793). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 June 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$157Average$1,193FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$359Average$688FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$364Average$630FlexibilityNo cancel feeOn-time76%
IberiaCheapest$391Average$843FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$427Average$578FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$429Average$734FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$445Average$783FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$456Average$503FlexibilityNo cancel feeOn-time77%
KLMCheapest$459Average$586FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$477Average$730FlexibilityNo cancel feeOn-time62%

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