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$257+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Find cheap flights from Seattle to Dublin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dublin are usually found in November or February, booked 26 days in advance, depart on a Tuesday or Wednesday and return on a Sunday

Cheap 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 January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com 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
Thu 4/232:15 pm
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 1/27$408
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/193:40 pm
SEA
-
DUB
1 stop13h 35m
Icelandair
Thu 4/232:15 pm
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 1/28$427
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 pm
SEA
-
DUB
1 stop32h 05m
Icelandair
Wed 4/2912:15 pm
DUB
-
SEA
1 stop13h 40m
Icelandair
Deal found 1/28$429
This FlightHub deal was found by Cheapflights users on 1/26. 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 4/163:40 pm
SEA
-
DUB
1 stop11h 25m
Icelandair
Thu 4/232:15 pm
DUB
-
SEA
1 stop11h 40m
Icelandair
Deal found 1/26$431
This FlightHub deal was found by Cheapflights users on 1/26. 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 4/157:00 pm
SEA
-
DUB
1 stop32h 05m
Icelandair
Thu 4/232:15 pm
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 1/26$433
This oojo deal was found by Cheapflights users on 1/27. 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 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 stop14h 25m
Icelandair
Deal found 1/27$435
This CrystalTravel deal was found by Cheapflights users on 1/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/262:35 pm
SEA
-
DUB
1 stop11h 40m
Icelandair
Thu 3/511:30 am
DUB
-
SEA
1 stop13h 30m
Icelandair
Deal found 1/27$445
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:35 pm
SEA
-
DUB
1 stop11h 40m
Icelandair
Fri 3/611:30 am
DUB
-
SEA
1 stop13h 30m
Icelandair
Deal found 1/27$448
This oojo deal was found by Cheapflights users on 1/28. 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 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 1/28$452
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 4/133:40 pm
SEA
-
DUB
1 stop13h 35m
Icelandair
Tue 4/212:15 pm
DUB
-
SEA
1 stop11h 40m
Icelandair
Deal found 1/26$453
This KAYAK deal was found by Cheapflights users on 1/26. 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.
Mon 4/133:40 pm
SEA
-
DUB
1 stop13h 35m
Icelandair
Thu 4/232:15 pm
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 1/26$454
This CrystalTravel deal was found by Cheapflights users on 1/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:40 pm
SEA
-
DUB
1 stop13h 35m
Icelandair
Tue 9/292:15 pm
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 1/27$455

Find 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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$408
(Kiwi.com)

One-way from

$257
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$554

Good round-trip deal

$609 or less

Good one-way deal

$367 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 Dublin
Search Deals
One-way flight from Seattle/Tacoma Intl to Dublin
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($161 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 Seattle/Tacoma Intl to Dublin.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Dublin.
Search Deals

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 January 29, 2026.
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

Tue 3/31

8:25 am-7:55 am

1 stop15h 30m

Dublin

Wed 4/8

11:10 am-4:30 pm

1 stop13h 20m

$476

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 4/19

7:20 am-9:15 am

1 stop17h 55m

Dublin

Mon 4/27

11:10 am-4:30 pm

1 stop13h 20m

$476

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 4/17

3:40 pm-1:15 pm

1 stop13h 35m

Dublin

Wed 4/22

12:15 pm-5:55 pm

1 stop13h 40m

$479

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 3/30

4:25 pm-6:25 pm

2 stops18h 00m

Dublin

Mon 4/6

5:55 am-4:30 pm

1 stop18h 35m

$481

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 3/29

7:20 am-8:20 am

2 stops17h 00m

Dublin

Tue 4/7

5:55 am-11:45 am

1 stop13h 50m

$481

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/22

8:00 am-7:20 am

1 stop15h 20m

Dublin

Fri 5/1

9:20 am-3:48 pm

2 stops38h 28m

$482

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 5/5

11:48 pm-7:20 am

2 stops23h 32m

Dublin

Wed 5/13

9:50 am-2:20 pm

1 stop12h 30m

$484

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 5/6

8:00 am-7:20 am

1 stop15h 20m

Dublin

Wed 5/13

9:50 am-2:20 pm

1 stop12h 30m

$484

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 5/2

11:14 pm-7:20 am

1 stop24h 06m

Dublin

Wed 5/13

9:50 am-2:20 pm

1 stop12h 30m

$484

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 4/30

7:15 am-10:25 am

2 stops19h 10m

Dublin

Thu 5/7

11:10 am-4:30 pm

1 stop13h 20m

$486

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 22 results
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2
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Dublin flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

To ensure you get the cheapest price possible for a flight from Seattle to Dublin, you should look to book at least 26 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, November is the cheapest month in which you can book a flight from Seattle to Dublin (average of $308). Flying from Seattle to Dublin in June is currently the most expensive (average of $656). 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.

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 January 29, 2026.
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
8,127 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,127 reviews
Delta
7.9
Good
8,127 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,206 reviews
Delta
7.9
Good
8,127 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Aer Lingus
7.2
Good
1,443 reviews
Delta
7.9
Good
8,127 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.1
Good
606 reviews
Delta
7.9
Good
8,127 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,705 reviews
Delta
7.9
Good
8,127 reviews

Food

7.2

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 14 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 $479, KLM can have you in Dublin from Seattle in 13h 35m. 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 Canada, from $341, and Icelandair, from $354. 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 cheapest airlines to fly from Seattle to Dublin one-way?

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $174. Users have also found prices from $234 and $278 on WestJet and British Airways, respectively.

  • 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 (61%), Aer Lingus (61%) or British Airways (61%) 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 $316. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for $407 on average, our data indicates $1,619 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 $52 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, November is the cheapest month in which you can book a flight from Seattle to Dublin (average of $308). Flying from Seattle to Dublin in June is currently the most expensive (average of $656). 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
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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$402FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$341Average$625FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$354Average$548FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$587FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$404Average$685FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$405Average$619FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$407Average$584FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$431Average$721FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$444Average$488FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$457Average$708FlexibilityNo cancel feeOn-time76%

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