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Ireland

$229+ Cheap flights from Washington 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Feb 22 — Mar 11
Sun 2/22
Sun 3/1
1 adult, Economy
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Cheap flight deals from Washington to Ireland

Cheapest flights from Washington to Ireland
Explore the most affordable flight options available from Washington to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2026.

This oojo deal was found by Cheapflights users on 1/20. 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 4/23:30 pm
PDX
-
DUB
1 stop11h 35m
Icelandair
Wed 4/812:15 pm
DUB
-
PDX
1 stop13h 45m
Icelandair
Deal found 1/20$361
This oojo deal was found by Cheapflights users on 1/22. 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 5/123:30 pm
PDX
-
DUB
1 stop11h 35m
Icelandair
Wed 5/2012:15 pm
DUB
-
PDX
1 stop13h 40m
Icelandair
Deal found 1/22$378
This oojo deal was found by Cheapflights users on 1/20. 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 4/143:40 pm
SEA
-
DUB
1 stop11h 25m
Icelandair
Sat 4/252:15 pm
DUB
-
SEA
1 stop11h 40m
Icelandair
Deal found 1/20$381
This oojo deal was found by Cheapflights users on 1/22. 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 4/163:40 pm
SEA
-
DUB
1 stop11h 25m
Icelandair
Wed 4/2212:15 pm
DUB
-
SEA
1 stop16h 25m
Icelandair
Deal found 1/22$382
This FlightHub deal was found by Cheapflights users on 1/21. 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.
Thu 5/143:30 pm
PDX
-
DUB
1 stop11h 35m
Icelandair
Wed 5/2012:15 pm
DUB
-
PDX
1 stop13h 40m
Icelandair
Deal found 1/21$382
This oojo deal was found by Cheapflights users on 1/20. 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.
Mon 4/203:30 pm
PDX
-
DUB
1 stop13h 45m
Icelandair
Mon 4/272:15 pm
DUB
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/20$384
This oojo deal was found by Cheapflights users on 1/21. 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 4/233:30 pm
PDX
-
DUB
1 stop11h 35m
Icelandair
Mon 4/272:15 pm
DUB
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/21$385
This FlightHub deal was found by Cheapflights users on 1/21. 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 4/133:40 pm
SEA
-
DUB
1 stop13h 35m
Icelandair
Fri 4/1712:15 pm
DUB
-
SEA
1 stop16h 25m
Icelandair
Deal found 1/21$386
This KAYAK deal was found by Cheapflights users on 1/20. 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.
Sat 4/183:30 pm
PDX
-
DUB
1 stop11h 35m
Icelandair
Fri 4/2412:15 pm
DUB
-
PDX
1 stop13h 45m
Icelandair
Deal found 1/20$388
This oojo deal was found by Cheapflights users on 1/21. 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 4/283:40 pm
SEA
-
DUB
1 stop11h 25m
Icelandair
Tue 5/52:15 pm
DUB
-
SEA
1 stop11h 40m
Icelandair
Deal found 1/21$389
This FlightHub deal was found by Cheapflights users on 1/20. 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.
Tue 4/213:30 pm
PDX
-
DUB
1 stop11h 35m
Icelandair
Mon 4/272:15 pm
DUB
-
PDX
1 stop11h 45m
Icelandair
Deal found 1/20$389
This Gurufare deal was found by Cheapflights users on 1/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:50 pm
SEA
-
SNN
1 stop16h 35m
British Airways
Wed 2/257:50 am
SNN
-
SEA
2 stops18h 30m
British Airways
Deal found 1/21$390

Find flight deals from Washington to Ireland

Keep the following information in mind while searching for Washington to Ireland flight deals. Data was last updated January 23, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$361
(oojo)

One-way from

$229
(American Airlines)

Popular in

June

Cheapest in

November

Average price

$552

Good round-trip deal

$610 or less

Good one-way deal

$414 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Dublin flights.
Search Deals
From Washington to Ireland
Search Deals
One-way flight from Washington to Ireland
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($162 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Washington to Ireland.
Search Deals
Price to beat on a one-way flight from Washington to Ireland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 January 23, 2026.
Use the filters below to find and compare flights from Washington to Ireland that are best for you.

Fly from

Washington

Fly to

Ireland

Route

Depart

Return

Price

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 2/18

6:50 pm-7:25 pm

1 stop16h 35m

Shannon

Wed 2/25

7:50 am-6:20 pm

2 stops18h 30m

$390

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 3/17

2:25 pm-4:45 pm

1 stop19h 20m

Shannon

Tue 3/31

4:50 pm-5:10 pm

2 stops32h 20m

$399

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/15

3:40 pm-1:15 pm

1 stop13h 35m

Dublin

Thu 4/23

2:15 pm-5:55 pm

1 stop11h 40m

$409

PortlandShannon

PDX - SNN

PDXSNN

Portland

Wed 2/18

6:40 am-11:30 am

2 stops20h 50m

Shannon

Wed 2/25

7:50 am-3:55 pm

1 stop16h 05m

$415

PortlandCork

PDX - ORK

PDXORK

Portland

Mon 2/9

5:45 pm-11:10 am

1 stop33h 25m

Cork

Wed 2/25

7:40 am-3:55 pm

1 stop16h 15m

$424

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 2/11

6:00 am-4:35 pm

2 stops26h 35m

Dublin

Tue 2/17

3:30 pm-3:55 pm

1 stop32h 25m

$424

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 5/3

3:40 pm-1:15 pm

1 stop13h 35m

Dublin

Sun 5/10

12:15 pm-5:55 pm

1 stop13h 40m

$425

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 5/14

3:40 pm-11:05 am

1 stop11h 25m

Dublin

Thu 5/21

2:15 pm-8:40 pm

1 stop14h 25m

$430

PortlandDublin

PDX - DUB

PDXDUB

Portland

Tue 3/3

7:00 am-8:10 am

1 stop17h 10m

Dublin

Thu 3/12

1:35 pm-9:52 pm

1 stop15h 17m

$434

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

7:00 am-11:20 am

2 stops20h 20m

Shannon

Sat 4/25

7:30 am-5:10 pm

2 stops17h 40m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

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

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

What is the cheapest month to book a flight from State of Washington to Ireland?

Currently, November is the cheapest month in which you can book a flight from State of Washington to Ireland (average of $308). Flying from State of Washington to Ireland in June is currently the most expensive (average of $654). 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.

Related info for your journey

Find useful and relevant information for your journey from Washington to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this State of Washington to Ireland flight route?

    Flights from Washington to Ireland have been viewed 15 times in the past calendar month.

  • How long is the flight from State of Washington to Ireland?

    Departing from State of Washington to Ireland will take you 13h 35m. Airlines will cover a distance of 4523 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 State of Washington to Ireland one-way?

    The cheapest airlines for a one-way flight from State of Washington to Ireland are Icelandair ($174), WestJet ($234), and British Airways ($278).

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

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

  • How can I find direct flights from Washington to Ireland?

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Ireland?

    Currently, November is the cheapest month in which you can book a flight from State of Washington to Ireland (average of $308). Flying from State of Washington to Ireland in June is currently the most expensive (average of $654). 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 to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Ireland

Discover the top 10 airlines that operate flights from Washington 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 January 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$402FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$341Average$625FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$355Average$716FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$547FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$405Average$688FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$405Average$683FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$407Average$822FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$431Average$678FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$444Average$488FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$467Average$717FlexibilityNo cancel feeOn-time76%

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