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Ireland

$274+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This KLM deal was found by Cheapflights users on 12/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:30 amPDX - DUB
2 stops18h 15mKLM
Tue 12/169:45 amDUB - PDX
2 stops16h 29mKLM
Deal found 12/1$424
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:59 pmPDX - DUB
1 stop33h 46mDelta
Tue 12/169:45 amDUB - PDX
1 stop15h 58mDelta
Deal found 12/1$439
This Kiwi.com deal was found by Cheapflights users on 12/4. 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 12/510:50 amPDX - DUB
1 stop13h 20mMultiple Airlines
Mon 12/1510:40 amDUB - PDX
1 stop16h 05mMultiple Airlines
Deal found 12/4$441
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
Wed 12/37:00 amPDX - DUB
1 stop17h 10mBrussels Airlines
Fri 12/1210:40 amDUB - PDX
1 stop16h 05mBrussels Airlines
Deal found 12/1$447
This KLM deal was found by Cheapflights users on 12/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:30 amPDX - DUB
2 stops18h 15mMultiple Airlines
Mon 12/1510:45 amDUB - PDX
2 stops19h 30mMultiple Airlines
Deal found 12/1$449
This Air Canada deal was found by Cheapflights users on 12/1. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:00 amPDX - DUB
2 stops17h 10mAir Canada
Sun 12/149:00 amDUB - PDX
2 stops41h 41mAir Canada
Deal found 12/1$450
This lastminute.com deal was found by Cheapflights users on 12/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:00 pmPDX - DUB
2 stops52h 10mMultiple Airlines
Fri 12/1210:40 amDUB - PDX
2 stops21h 57mMultiple Airlines
Deal found 12/2$451
This United Airlines deal was found by Cheapflights users on 12/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:59 pmPDX - DUB
1 stop24h 11mUnited Airlines
Tue 12/1610:40 amDUB - PDX
2 stops33h 32mUnited Airlines
Deal found 12/1$452
This Air Canada deal was found by Cheapflights users on 12/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/23:15 pmPDX - DUB
2 stops55h 55mAir Canada
Wed 12/109:00 amDUB - PDX
2 stops41h 45mAir Canada
Deal found 12/2$457
This Delta deal was found by Cheapflights users on 12/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:10 amPDX - DUB
1 stop17h 35mDelta
Sun 12/149:45 amDUB - PDX
1 stop17h 50mDelta
Deal found 12/1$458
This lastminute.com deal was found by Cheapflights users on 12/2. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/23:55 pmPDX - DUB
2 stops31h 35mLufthansa
Fri 12/1210:40 amDUB - PDX
2 stops21h 57mLufthansa
Deal found 12/2$461
This United Airlines deal was found by Cheapflights users on 12/3. 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.
Wed 12/108:10 amSEA - DUB
1 stop18h 10mUnited Airlines
Wed 4/159:50 amDUB - SEA
2 stops33h 52mUnited Airlines
Deal found 12/3$479

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 December 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$391
(Mytrip)

One-way from

$274
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$658

Good round-trip deal

$619 or less

Good one-way deal

$458 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. 22% potential increase in price ($186 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 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 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 December 4, 2025.
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

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 1/18

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Fri 1/30

11:30 am-5:00 pm

1 stop13h 30m

$422

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/20

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Tue 1/27

11:30 am-5:00 pm

1 stop13h 30m

$422

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 1/24

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Fri 1/30

11:30 am-5:00 pm

1 stop13h 30m

$422

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 1/21

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Thu 1/29

11:30 am-5:00 pm

1 stop13h 30m

$422

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 1/19

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Fri 1/30

11:30 am-5:00 pm

1 stop13h 30m

$422

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 1/19

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Thu 1/29

11:30 am-5:00 pm

1 stop13h 30m

$422

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sun 1/25

7:00 am-7:30 am

2 stops16h 30m

Dublin

Tue 2/10

9:30 am-9:12 pm

2 stops19h 42m

$426

PortlandDublin

PDX - DUB

PDXDUB

Portland

Wed 1/21

10:47 am-8:10 am

1 stop13h 23m

Dublin

Sat 1/31

9:00 am-10:32 pm

2 stops45h 32m

$430

PortlandDublin

PDX - DUB

PDXDUB

Portland

Fri 1/23

10:47 am-8:10 am

1 stop13h 23m

Dublin

Wed 1/28

9:00 am-9:12 pm

2 stops44h 12m

$430

PortlandDublin

PDX - DUB

PDXDUB

Portland

Sat 2/14

11:59 pm-8:10 am

1 stop24h 11m

Dublin

Sat 2/28

9:00 am-6:49 pm

2 stops41h 49m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

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 $680). 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 WA to IE?

Find hourly flight availability from Washington 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 4, 2025.

It’s optimal to fly from State of Washington to Ireland in the evening. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from State of Washington to Ireland?

Use this chart to determine the cheapest time to fly round-trip from Washington to Ireland. Price data was last updated on December 1, 2024.

Travelers seeking maximum savings on their State of Washington to Ireland flight should consider departing on Tuesday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 14 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 11h 40m. 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 ($179), 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 $680). 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$402FlexibilityNo cancel feeOn-time62%
Air FranceCheapest$337Average$732FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$341Average$639FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$358Average$713FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$512FlexibilityNo cancel feeOn-time77%
KLMCheapest$405Average$660FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$412Average$765FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$418Average$849FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$431Average$704FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$467Average$729FlexibilityNo cancel feeOn-time76%

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