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$268+ Cheap flights from Seattle (SEA) to Dublin (DUB)

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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dublin are usually found in January or November, booked 70 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Cheap flight deals from Seattle to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Dublin (DUB). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 3, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$403
(Icelandair)

One-way from

$268
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$509

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.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Dublin flights.
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From Seattle/Tacoma Intl to Dublin
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One-way flight from Seattle/Tacoma Intl to Dublin
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Highest demand for flights based on searches. 22% potential increase in price ($187 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Dublin.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Dublin.
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Find flight deals from Seattle to Dublin

Cheapest flights from Seattle to Dublin
Explore the most affordable flight options available from Seattle to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This deal was found by Cheapflights users on 11/2. 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 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
Tue 12/911:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 11/2$404
This Expedia deal was found by Cheapflights users on 11/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/92:35 pmSEA - DUB
1 stop11h 40mIcelandair
Mon 12/1511:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 11/1$405
This Mytrip deal was found by Cheapflights users on 11/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:05 pmSEA - DUB
Nonstop9h 05mAer Lingus
Fri 12/124:30 pmDUB - SEA
Nonstop9h 50mAer Lingus
Deal found 11/3$417
This British Airways deal was found by Cheapflights users on 11/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:50 pmSEA - DUB
1 stop14h 10mBritish Airways
Mon 1/1210:45 amDUB - SEA
1 stop32h 45mBritish Airways
Deal found 11/2$418
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub 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 11/194:30 pmDUB - SEA
Nonstop9h 50mAer Lingus
Deal found 11/2$419
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:27 amSEA - DUB
1 stop13h 18mDelta
Wed 11/2611:30 amDUB - SEA
1 stop31h 15mDelta
Deal found 11/3$423
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:35 pmSEA - DUB
1 stop11h 40mIcelandair
Wed 12/311:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 11/3$426
This deal was found by Cheapflights users on 11/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/22:35 pmSEA - DUB
1 stop11h 40mIcelandair
Mon 12/1511:30 amDUB - SEA
1 stop13h 30mIcelandair
Deal found 11/2$428
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/129:59 amSEA - DUB
1 stop14h 41mMultiple Airlines
Thu 11/277:35 amDUB - SEA
1 stop17h 20mMultiple Airlines
Deal found 11/2$430
This KLM deal was found by Cheapflights users on 11/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:27 amSEA - DUB
1 stop13h 18mMultiple Airlines
Wed 12/249:45 amDUB - SEA
1 stop18h 55mMultiple Airlines
Deal found 11/2$433
This KLM deal was found by Cheapflights users on 11/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:27 amSEA - DUB
1 stop13h 18mKLM
Thu 11/279:45 amDUB - SEA
2 stops16h 54mKLM
Deal found 11/2$438

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Dublin 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 November 3, 2025.
Use the filters below to find and compare flights from Seattle to Dublin that are best for you.

Fly from

Seattle

Fly to

Dublin

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 1/12

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Sun 1/18

11:30 am-5:00 pm

1 stop13h 30m

$404

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 3/27

3:35 pm-12:15 pm

1 stop13h 40m

Dublin

Tue 3/31

2:15 pm-5:50 pm

1 stop11h 35m

$408

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 4/2

3:45 pm-11:05 am

1 stop11h 20m

Dublin

Wed 4/8

12:15 pm-5:50 pm

1 stop13h 35m

$408

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/30

6:50 pm-5:00 pm

1 stop14h 10m

Dublin

Mon 1/12

10:45 am-11:30 am

1 stop32h 45m

$418

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 1/9

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Sat 1/17

11:30 am-5:00 pm

1 stop13h 30m

$428

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/2

6:00 am-7:45 am

1 stop17h 45m

Dublin

Tue 12/9

6:00 am-6:32 pm

2 stops20h 32m

$452

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 11/24

10:53 am-8:10 am

1 stop13h 17m

Dublin

Wed 12/3

9:00 am-11:45 am

2 stops34h 45m

$455

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 3/11

12:20 pm-9:55 am

1 stop14h 35m

Dublin

Wed 3/25

8:00 am-9:17 pm

2 stops44h 17m

$455

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 4/28

11:44 am-9:45 am

2 stops38h 01m

Dublin

Tue 5/12

9:50 am-11:15 am

1 stop33h 25m

$465

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 11/19

6:03 am-7:30 am

1 stop17h 27m

Dublin

Wed 12/10

9:00 am-2:31 pm

2 stops37h 31m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 22 results
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Compare providers for flights from Seattle to Dublin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Dublin in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Dublin flights, users find the pricing of Gotogate to be most consistent on Cheapflights vs. Gotogate Users can find the same prices on Seattle-Dublin flight deals on Cheapflights vs. Gotogate >95% of the time. Price accuracy is based on data collected from Seattle-Dublin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Dublin flights, Cheapflights users trust Gotogate the most. Gotogate has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Dublin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin

How far ahead should I book a flight from Seattle to Dublin?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Dublin. Price data was last updated on October 31, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Dublin, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, February is the cheapest month in which you can book a flight from Seattle to Dublin (average of $326). Flying from Seattle to Dublin 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 DUB?

Find hourly flight availability from Seattle to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

It’s typically best to fly out from Seattle to Dublin at noon. Doing so could potentially save you 32% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

Travelers seeking maximum savings on their Seattle to Dublin flight should consider departing on Saturday at noon 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.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated November 3, 2025.
Read through reviews of airlines operating flights from Seattle to Dublin, such as Delta, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,002 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
American Airlines
7.2
Good
11,038 reviews
Delta
7.9
Good
8,002 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Aer Lingus
7.2
Good
1,365 reviews
Delta
7.9
Good
8,002 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Icelandair
7.1
Good
568 reviews
Delta
7.9
Good
8,002 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
British Airways
6.7
Okay
7,494 reviews
Delta
7.9
Good
8,002 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

Related info for your journey

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

  • What airports do I use to fly from Seattle to Dublin?

    If you book a flight from Seattle to Dublin, you will be flying from Seattle/Tacoma Intl to Dublin. Flights to Dublin (DUB) from Seattle/Tacoma Intl (SEA) take 9h 00m for a nonstop flight. There is 1 flight from Seattle/Tacoma Intl to Dublin per day from 13 airlines.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 15 users have taken a look at flights from Seattle/Tacoma Intl to Dublin.

  • How long is the flight from Seattle to Dublin?

    For as low as $404, Icelandair can have you in Dublin from Seattle in 11h 40m. The distance from Seattle to Dublin is about 4523 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Seattle to Dublin round-trip?

    Cheapflights users have booked flights from Seattle to Dublin round-trip from $101. Other airlines that can offer you cheap pricing are Air France, from $337, and Air Canada, from $341. You may be able to fly from Seattle to Dublin for 84% less than the average price by searching for these airlines.

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

    No one likes to see their flight delayed. When booking a flight from Seattle to Dublin consider choosing American Airlines (64%), Aer Lingus (64%) or British Airways (64%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Dublin?

    Looking at all options, your cheapest flight can be booked for $328. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for $347 on average, our data indicates $1,604 when flying from Seattle to Dublin.

  • Where are the most common layover locations when flying from Seattle to Dublin?

    The most popular layover on flights from Seattle to Dublin is Reykjavik.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are the most popular attractions in Reykjavik if you're in need of something to do during your layover. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool can be accessed by traveling approximately 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Travelers can rent a car at Reykjavik Keflavik Intl for an average daily rate of $48 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Seattle to Dublin flights?

    Of the flights from Seattle to Dublin that have layovers, the fewest flights stop in London.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Seattle to Dublin (average of $326). Flying from Seattle to Dublin 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.

See more FAQs

Traveling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Maynooth
Castleknock
Swords
Wicklow
Leixlip

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Top 10 airlines flying from Seattle to Dublin

Discover the top 10 airlines that operate flights from Seattle to Dublin. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$402FlexibilityNo cancel feeOn-time62%
Air FranceCheapest$337Average$646FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$341Average$677FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$364Average$570FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$512FlexibilityNo cancel feeOn-time77%
KLMCheapest$405Average$619FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$416Average$717FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$425Average$610FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$431Average$725FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$467Average$725FlexibilityNo cancel feeOn-time76%

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