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$376+ Cheap flights from Ireland to Washington

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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Ireland to Washington

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

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:00 pmDUB - SEA
1 stop29h 59mAmerican Airlines
Mon 12/297:07 amSEA - DUB
1 stop16h 08mAmerican Airlines
Deal found 12/17$824
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:00 pmDUB - SEA
1 stop29h 59mAmerican Airlines
Sun 12/285:23 amSEA - DUB
2 stops19h 17mAmerican Airlines
Deal found 12/17$833
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2410:20 amDUB - SEA
2 stops32h 39mAmerican Airlines
Sat 12/2711:59 pmSEA - DUB
1 stop23h 11mAmerican Airlines
Deal found 12/17$839
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:00 amDUB - SEA
2 stops32h 55mUnited Airlines
Tue 1/63:30 pmSEA - DUB
2 stops32h 40mUnited Airlines
Deal found 12/16$856
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2412:05 pmDUB - SEA
1 stop16h 52mUnited Airlines
Wed 1/77:00 amSEA - DUB
1 stop17h 10mUnited Airlines
Deal found 12/16$861
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.
Wed 12/245:15 pmDUB - SEA
1 stop26h 35mMultiple Airlines
Tue 1/61:40 pmSEA - DUB
1 stop18h 05mMultiple Airlines
Deal found 12/16$863
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:30 pmDUB - SEA
Nonstop9h 50mAer Lingus
Mon 12/298:05 pmSEA - DUB
Nonstop9h 05mAer Lingus
Deal found 12/17$885
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/241:25 pmDUB - SEA
1 stop30h 25mDelta
Fri 12/2610:55 pmSEA - DUB
2 stops50h 25mDelta
Deal found 12/17$896
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:55 amDUB - PDX
1 stop13h 30mKLM
Wed 1/71:25 pmPDX - DUB
1 stop15h 15mKLM
Deal found 12/17$902
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:15 pmDUB - SEA
1 stop26h 35mMultiple Airlines
Sat 1/171:40 pmSEA - DUB
1 stop18h 05mMultiple Airlines
Deal found 12/17$908
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:00 amDUB - PDX
2 stops33h 01mUnited Airlines
Wed 1/710:47 amPDX - DUB
1 stop13h 23mUnited Airlines
Deal found 12/17$910
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/211:35 pmDUB - SEA
1 stop16h 00mUnited Airlines
Sat 1/177:00 amSEA - DUB
1 stop17h 10mUnited Airlines
Deal found 12/16$920

Find flight deals from Ireland to Washington

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

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$600
(Gotogate)

One-way from

$376
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$682

Good round-trip deal

$698 or less

Good one-way deal

$628 or less
Provider with most accurate pricing for Dublin-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Seattle/Tacoma Intl flights.
Search Deals
From Ireland to Washington
Search Deals
One-way flight from Ireland to Washington
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($174 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 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 Ireland to Washington.
Search Deals
Price to beat on a one-way flight from Ireland to Washington.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ireland to Washington 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 Ireland to Washington that are best for you.

Fly from

Ireland

Fly to

Washington

Route

Depart

Return

Price

DublinPortland

DUB - PDX

DUBPDX

Dublin

Sun 1/25

10:10 am-10:20 pm

2 stops20h 10m

Portland

Sun 2/8

10:30 am-6:20 pm

2 stops23h 50m

$650

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 1/16

7:05 am-5:00 pm

2 stops17h 55m

Seattle/Tacoma Intl

Sat 1/24

2:35 pm-9:35 pm

2 stops23h 00m

$658

DublinPortland

DUB - PDX

DUBPDX

Dublin

Sun 1/25

10:10 am-10:20 pm

2 stops20h 10m

Portland

Sun 2/15

1:02 pm-11:45 am

2 stops38h 43m

$662

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 1/31

10:10 am-6:58 pm

2 stops40h 48m

Seattle/Tacoma Intl

Sat 2/7

2:02 pm-11:45 am

2 stops37h 43m

$693

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 2/1

7:05 pm-10:24 pm

2 stops35h 19m

Seattle/Tacoma Intl

Sun 2/8

2:02 pm-11:45 am

2 stops37h 43m

$693

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 1/25

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-10:15 am

1 stop11h 40m

$695

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 2/27

7:05 pm-9:52 pm

2 stops34h 47m

Seattle/Tacoma Intl

Mon 3/2

11:17 am-11:45 am

2 stops40h 28m

$708

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/4

12:30 pm-6:56 pm

2 stops38h 26m

Seattle/Tacoma Intl

Sun 3/8

1:30 pm-11:45 am

2 stops39h 15m

$721

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 1/25

1:25 pm-5:00 pm

3 stops35h 35m

Seattle/Tacoma Intl

Fri 1/30

2:35 pm-6:50 pm

2 stops20h 15m

$724

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 2/5

7:05 pm-6:58 pm

2 stops31h 53m

Seattle/Tacoma Intl

Sun 2/15

7:10 am-6:20 pm

2 stops27h 10m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 58 results
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Best time to book a flight from Ireland to Washington

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

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

Currently, March is the cheapest month in which you can book a flight from Ireland to State of Washington (average of $464). Flying from Ireland to State of Washington in July is currently the most expensive (average of $790). 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 IE to WA?

Find hourly flight availability from Ireland to Washington. 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.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ireland to State of Washington as you normally would.

Reviews of airlines servicing Washington

Get insights into the airlines that provide service to Washington. 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 Washington. Reviews last updated December 18, 2025.
See what other customers who have flown with Aer Lingus from Ireland to Washington have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,399 reviews

Entertainment

6.9

Food

6.6

Boarding

7.4

Comfort

7.1

Crew

8.0

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.
Aer Lingus
7.2
Good
1,399 reviews
Aer Lingus
7.2
Good
1,399 reviews

Entertainment

6.9

Food

6.6

Boarding

7.4

Comfort

7.1

Crew

8.0

Overall

7.2

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

DUB - EDI

Fine except for app. Couldn’t check in online - kept saying I couldn’t check in until the morning after my flight. On second leg I could check in but couldn’t get my boarding pass into my wallet. Thankfully I took a screenshot of it because I couldn’t retrieve it when we boarded - the app prohibited it.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Washington. 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 Ireland to State of Washington flight route?

    Flights from Ireland to Washington have been viewed 2 times in the past calendar month.

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

    There are many flights that can get you from Ireland to State of Washington in 13h 30m. Fly via Scandinavian Airlines, Icelandair, or Delta to get the fastest option. The distance from Ireland to State of Washington is about 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 Ireland to State of Washington one-way?

    One-way options have recently been found by users for as low as $192 on WestJet. Other airlines that offer cheap prices include Icelandair from $414 and Aer Lingus from $507 one-way.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Ireland to State of Washington (average of $464). Flying from Ireland to State of Washington in July is currently the most expensive (average of $790). 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 Ireland to Washington

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Top airline flying from Ireland to Washington

Discover the top airline that operate flights from Ireland to Washington. 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
Aer LingusCheapest$523Average$699FlexibilityNo cancel feeOn-timeN/A

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