HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dublin

$217+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
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 Wednesday or Tuesday and return on a Friday

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 March 18, 2026.

This FlightHub deal was found by Cheapflights users on 3/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:00 pm
SEA
-
DUB
2 stops39h 50m
Scandinavian Airlines
Thu 9/2412:40 pm
DUB
-
SEA
1 stop33h 05m
Scandinavian Airlines
Deal found 3/16$545
This oojo deal was found by Cheapflights users on 3/15. 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 9/13:55 pm
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Thu 9/1012:40 pm
DUB
-
SEA
1 stop33h 05m
Scandinavian Airlines
Deal found 3/15$546
This oojo deal was found by Cheapflights users on 3/13. 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 9/63:55 pm
SEA
-
DUB
2 stops35h 00m
Scandinavian Airlines
Mon 9/217:50 pm
DUB
-
SEA
2 stops25h 55m
Scandinavian Airlines
Deal found 3/13$550
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Sat 4/257:00 pm
SEA
-
DUB
2 stops32h 20m
Multiple Airlines
Fri 5/11:00 pm
DUB
-
SEA
1 stop28h 40m
Multiple Airlines
Deal found 3/13$555
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:55 pm
SEA
-
DUB
2 stops32h 05m
Scandinavian Airlines
Sat 9/128:00 pm
DUB
-
SEA
2 stops25h 45m
Scandinavian Airlines
Deal found 3/13$556
This FlightHub deal was found by Cheapflights users on 3/15. 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 8/1912:00 pm
SEA
-
DUB
2 stops39h 50m
Scandinavian Airlines
Fri 9/412:40 pm
DUB
-
SEA
1 stop33h 05m
Scandinavian Airlines
Deal found 3/15$561
This oojo deal was found by Cheapflights users on 3/15. 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.
Sat 8/223:55 pm
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Fri 9/47:50 pm
DUB
-
SEA
2 stops25h 55m
Scandinavian Airlines
Deal found 3/15$562
This KAYAK deal was found by Cheapflights users on 3/15. 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.
Fri 9/43:55 pm
SEA
-
DUB
1 stop33h 30m
Scandinavian Airlines
Mon 9/1412:40 pm
DUB
-
SEA
1 stop33h 05m
Scandinavian Airlines
Deal found 3/15$565
This FlightHub deal was found by Cheapflights users on 3/14. 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.
Fri 9/113:55 pm
SEA
-
DUB
1 stop33h 30m
Scandinavian Airlines
Sat 9/1910:15 am
DUB
-
SEA
1 stop35h 30m
Scandinavian Airlines
Deal found 3/14$567
This SmartFares deal was found by Cheapflights users on 3/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:55 pm
SEA
-
DUB
2 stops35h 00m
Scandinavian Airlines
Sat 9/1210:15 am
DUB
-
SEA
1 stop35h 30m
Scandinavian Airlines
Deal found 3/17$569
This Scandinavian Airlines deal was found by Cheapflights users on 3/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/43:55 pm
SEA
-
DUB
2 stops34h 15m
Scandinavian Airlines
Tue 10/137:05 pm
DUB
-
SEA
2 stops35h 21m
Scandinavian Airlines
Deal found 3/17$570
This Scandinavian Airlines deal was found by Cheapflights users on 3/15. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/103:55 pm
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Tue 10/137:05 pm
DUB
-
SEA
2 stops35h 21m
Scandinavian Airlines
Deal found 3/15$571

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 March 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$546
(oojo)

One-way from

$217
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$608

Good round-trip deal

$730 or less

Good one-way deal

$360 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 ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 18, 2026.
Use the filters below to find and compare flights from Seattle to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 9/10

12:00 pm-6:20 pm

2 stops22h 20m

Dublin

Sat 9/19

8:00 pm-1:45 pm

2 stops25h 45m

$655

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 9/1

7:10 pm-11:05 pm

1 stop19h 55m

Dublin

Tue 9/15

5:35 am-5:15 pm

1 stop19h 40m

$660

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/22

11:35 am-9:35 am

2 stops38h 00m

Dublin

Tue 4/28

10:40 am-5:15 pm

1 stop38h 35m

$674

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 5/18

7:10 pm-4:00 pm

1 stop36h 50m

Dublin

Mon 5/25

5:05 pm-5:15 pm

1 stop32h 10m

$676

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 8/22

5:00 pm-9:45 am

1 stop32h 45m

Dublin

Wed 9/2

9:50 am-9:52 am

1 stop32h 02m

$703

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 5/10

10:41 pm-7:20 am

1 stop24h 39m

Dublin

Wed 6/10

9:50 am-9:50 am

1 stop32h 00m

$720

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 8/28

11:10 pm-10:40 am

1 stop27h 30m

Dublin

Sun 9/6

9:50 am-9:52 am

1 stop32h 02m

$720

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 5/1

7:10 pm-11:05 pm

1 stop19h 55m

Dublin

Tue 5/5

10:40 am-9:06 pm

2 stops42h 26m

$720
Quickest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 8/23

3:40 pm-1:15 pm

1 stop13h 35m

Dublin

Thu 8/27

2:15 pm-5:55 pm

1 stop11h 40m

$728

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 5/6

8:20 am-12:40 pm

2 stops20h 20m

Dublin

Wed 5/13

8:55 am-8:43 pm

2 stops19h 48m

$741

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 March.
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 March 13, 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 $306). Flying from Seattle to Dublin in June is currently the most expensive (average of $607). 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 March 18, 2026.

When flying from Seattle to Dublin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 March 18, 2026.
Read through reviews of airlines operating flights from Seattle to Dublin, such as United Airlines,Aer Lingus, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,435 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,435 reviews
United Airlines
7.4
Good
9,435 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Aer Lingus
7.2
Good
1,477 reviews
United Airlines
7.4
Good
9,435 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,468 reviews
United Airlines
7.4
Good
9,435 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
622 reviews
United Airlines
7.4
Good
9,435 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,800 reviews
United Airlines
7.4
Good
9,435 reviews

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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, 11 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 $660, Scandinavian Airlines can have you in Dublin from Seattle in 19h 55m. 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 $348. You may be able to fly from Seattle to Dublin for 83% 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 $212 and $218 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 (88%), Aer Lingus (88%) or Iberia (88%) 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 $288. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for $485 on average, our data indicates $1,645 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 $59 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 $306). Flying from Seattle to Dublin in June is currently the most expensive (average of $607). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Seattle to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
Portland to Dublin flights
Spokane to Dublin flights
Seattle to Shannon flights
Seattle to Cork flights

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 March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$621FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$341Average$585FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$348Average$510FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$596FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$397Average$671FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$405Average$634FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$407Average$708FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$407Average$569FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$444Average$503FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$456Average$629FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.