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Ireland

$296+ Cheap flights from Seattle (SEA) 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find flight deals from Seattle to Ireland

Cheapest flights from Seattle to Ireland
Explore the most affordable flight options available from Seattle to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/272:35 pmSEA - DUB
1 stop11h 40mIcelandair
Fri 12/511:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 10/29$402
This Icelandair deal was found by Cheapflights users on 10/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/42:35 pmSEA - DUB
1 stop11h 40mIcelandair
Wed 12/1011:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 10/28$405
This FlightHub deal was found by Cheapflights users on 10/28. 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 12/12:35 pmSEA - DUB
1 stop11h 40mIcelandair
Wed 12/1011:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 10/28$406
This Ovago deal was found by Cheapflights users on 10/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:50 pmSEA - DUB
1 stop29h 05mBritish Airways
Wed 2/188:50 amDUB - SEA
1 stop16h 05mBritish Airways
Deal found 10/28$413
This oojo deal was found by Cheapflights users on 10/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:35 pmSEA - DUB
1 stop11h 40mIcelandair
Thu 11/2711:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 10/29$415
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Sun 11/98:05 pmSEA - DUB
Nonstop9h 05mAer Lingus
Wed 11/194:30 pmDUB - SEA
Nonstop9h 50mAer Lingus
Deal found 10/27$416
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:25 pmSEA - DUB
1 stop12h 50mAmerican Airlines
Tue 11/1810:00 amDUB - SEA
1 stop14h 55mAmerican Airlines
Deal found 10/27$417
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/248:05 pmSEA - DUB
Nonstop9h 05mAer Lingus
Fri 12/54:30 pmDUB - SEA
Nonstop9h 50mAer Lingus
Deal found 10/29$418
This Expedia deal was found by Cheapflights users on 10/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:05 pmSEA - DUB
Nonstop9h 05mAer Lingus
Wed 11/264:30 pmDUB - SEA
Nonstop9h 50mAer Lingus
Deal found 10/28$419
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:50 pmSEA - DUB
1 stop14h 55mMultiple Airlines
Tue 11/1811:30 amDUB - SEA
2 stops16h 33mMultiple Airlines
Deal found 10/27$424
This Icelandair deal was found by Cheapflights users on 10/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:35 pmSEA - DUB
1 stop11h 40mIcelandair
Wed 12/1011:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 10/28$429
This American Airlines deal was found by Cheapflights users on 10/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:50 pmSEA - ORK
1 stop12h 35mAmerican Airlines
Wed 12/107:40 amORK - SEA
2 stops20h 57mAmerican Airlines
Deal found 10/28$481

Cheap flight deals from Seattle to Ireland

Keep the following information in mind while searching for Seattle to Ireland flight deals. Data was last updated October 29, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$402
(Kiwi.com)

One-way from

$296
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$619

Good round-trip deal

$518 or less

Good one-way deal

$428 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 Seattle/Tacoma Intl to Ireland
Search Deals
One-way flight from Seattle/Tacoma Intl to Ireland
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($188 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 October 2025
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Ireland.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Ireland.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 October 29, 2025.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Seattle

Fly to

Ireland

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/30

6:50 pm-5:00 pm

1 stop14h 10m

Dublin

Thu 2/19

8:50 am-4:55 pm

1 stop16h 05m

$419

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 1/4

6:50 pm-7:40 pm

1 stop16h 50m

Dublin

Wed 2/18

10:20 am-4:55 pm

1 stop14h 35m

$419

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/30

6:50 pm-5:00 pm

1 stop14h 10m

Dublin

Tue 2/17

8:50 am-4:55 pm

1 stop16h 05m

$419

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 12/31

6:50 pm-7:45 pm

1 stop16h 55m

Dublin

Fri 2/20

8:50 am-4:55 pm

1 stop16h 05m

$419

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 12/29

12:55 am-7:45 am

1 stop22h 50m

Dublin

Fri 2/20

10:45 am-7:25 pm

1 stop16h 40m

$433

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/2

6:00 am-7:45 am

1 stop17h 45m

Dublin

Fri 12/12

10:45 am-10:19 am

2 stops31h 34m

$438

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 12/1

11:55 pm-7:45 am

1 stop23h 50m

Dublin

Tue 12/9

10:45 am-11:58 pm

2 stops21h 13m

$443

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 11/24

6:00 am-7:45 am

1 stop17h 45m

Dublin

Wed 12/3

6:00 am-8:50 pm

2 stops22h 50m

$452

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/2

6:00 am-7:45 am

1 stop17h 45m

Dublin

Thu 12/11

8:45 am-10:23 pm

2 stops21h 38m

$452

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 11/12

11:27 am-8:45 am

1 stop13h 18m

Dublin

Wed 11/26

6:00 am-5:00 pm

2 stops19h 00m

$452

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 42 results
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Best time to book a flight from Seattle to Ireland

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

What is the cheapest month to book a flight from Seattle to Ireland?

Currently, November is the cheapest month in which you can book a flight from Seattle to Ireland (average of $319). Flying from Seattle to Ireland in June is currently the most expensive (average of $681). 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 SEA to IE?

Find hourly flight availability from Seattle 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 October 29, 2025.

A simple way to save on the total cost of your ticket is to fly from Seattle to Ireland in the morning. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Seattle to Ireland?

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

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

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 October 29, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Aer Lingus from Seattle to Ireland. 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.
United Airlines
7.4
Good
9,001 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,001 reviews
United Airlines
7.4
Good
9,001 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,032 reviews
United Airlines
7.4
Good
9,001 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Aer Lingus
7.2
Good
1,361 reviews
United Airlines
7.4
Good
9,001 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Icelandair
7.1
Good
562 reviews
United Airlines
7.4
Good
9,001 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
British Airways
6.7
Okay
7,485 reviews
United Airlines
7.4
Good
9,001 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • What airport do you fly from for flights from Seattle to Ireland?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Ireland from Seattle.

  • How popular is this Seattle to Ireland flight route?

    This flight path from Seattle/Tacoma Intl to Ireland was viewed by 15 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Ireland?

    There are many flights that can get you from Seattle to Ireland in 14h 10m. Fly via British Airways, Delta, or KLM to get the fastest option. 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 most popular routes from Seattle to Ireland?

    The most popular flight routes from Seattle to Ireland are Seattle/Tacoma Intl - Dublin, Seattle/Tacoma Intl - Shannon and Seattle/Tacoma Intl - Cork.

  • What are the most reliable airlines from Seattle to Ireland?

    No one likes to see their flight delayed. When booking a flight from Seattle to Ireland consider choosing American Airlines (70%), Aer Lingus (70%) or British Airways (70%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Ireland?

    Looking for the cheapest flight from Seattle to Ireland? While on average our users pay $1,604, our data indicates the cheapest price to be $328. The most popular route (Seattle/Tacoma Intl - Dublin), is priced around $350.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle 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 Seattle to Ireland?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Ireland (average of $319). Flying from Seattle to Ireland in June is currently the most expensive (average of $681). 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.

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Top 10 airlines flying from Seattle to Ireland

Discover the top 10 airlines that operate flights from Seattle 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$402FlexibilityNo cancel feeOn-time62%
Air FranceCheapest$337Average$732FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$341Average$689FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$366Average$574FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$512FlexibilityNo cancel feeOn-time77%
KLMCheapest$405Average$671FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$414Average$755FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$425Average$862FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$431Average$741FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$467Average$725FlexibilityNo cancel feeOn-time76%

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