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$264+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Dublin are usually found in November or January, booked 26 days in advance, depart on a Wednesday or Tuesday 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 December 18, 2025.

This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:40 amSEA - DUB
1 stop17h 40mAir France
Sat 1/108:55 amDUB - SEA
1 stop36h 30mAir France
Deal found 12/16$709
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 amSEA - DUB
1 stop17h 10mMultiple Airlines
Wed 1/77:45 pmDUB - SEA
2 stops34h 31mMultiple Airlines
Deal found 12/16$717
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 12/315:02 amSEA - DUB
2 stops18h 28mUnited Airlines
Wed 1/79:00 amDUB - SEA
2 stops36h 57mUnited Airlines
Deal found 12/16$740
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:00 amSEA - DUB
1 stop17h 45mDelta
Tue 1/135:55 amDUB - SEA
1 stop13h 55mDelta
Deal found 12/16$752
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:00 amSEA - DUB
1 stop17h 45mDelta
Wed 12/248:50 amDUB - SEA
2 stops21h 35mDelta
Deal found 12/16$762
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.
Tue 12/165:00 amSEA - DUB
2 stops20h 55mUnited Airlines
Tue 1/139:30 amDUB - SEA
2 stops19h 42mUnited Airlines
Deal found 12/16$768
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:00 pmSEA - DUB
2 stops51h 10mAir Canada
Sat 1/109:00 amDUB - SEA
2 stops21h 06mAir Canada
Deal found 12/16$790
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:00 pmSEA - DUB
1 stop18h 25mMultiple Airlines
Tue 12/238:45 amDUB - SEA
2 stops21h 31mMultiple Airlines
Deal found 12/16$865
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/162:00 pmSEA - DUB
1 stop18h 25mLufthansa
Tue 12/2310:40 amDUB - SEA
1 stop20h 07mLufthansa
Deal found 12/16$988

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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$434
(CrystalTravel)

One-way from

$264
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$658

Good round-trip deal

$583 or less

Good one-way deal

$488 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. 21% potential increase in price ($180 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 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 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 December 18, 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 2/16

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Thu 3/5

11:30 am-5:00 pm

1 stop13h 30m

$474

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-10:20 am

1 stop32h 30m

$486

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Fri 3/6

11:30 am-5:00 pm

1 stop13h 30m

$487

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/13

9:25 am-8:45 am

2 stops15h 20m

Dublin

Fri 1/23

5:55 am-11:50 am

1 stop13h 55m

$496

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/13

9:25 am-8:45 am

2 stops15h 20m

Dublin

Tue 1/20

1:25 pm-11:50 am

1 stop30h 25m

$496

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 4/6

7:20 am-10:45 am

2 stops19h 25m

Dublin

Mon 4/13

1:25 pm-11:45 am

1 stop30h 20m

$500

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 3/4

8:30 am-12:40 pm

2 stops20h 10m

Dublin

Tue 3/17

5:55 am-12:35 pm

1 stop13h 40m

$502

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 2/7

3:30 pm-8:10 am

2 stops32h 40m

Dublin

Wed 2/18

9:00 am-10:43 pm

2 stops21h 43m

$503

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 2/25

8:30 am-8:45 am

2 stops16h 15m

Dublin

Tue 3/10

5:55 am-5:09 pm

2 stops18h 14m

$506

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 4/18

9:55 pm-9:15 am

1 stop27h 20m

Dublin

Wed 4/29

5:55 am-6:20 pm

2 stops20h 25m

$511

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 23 results
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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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Dublin flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 12, 2025.

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 $664). 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 December 18, 2025.

It’s typically best to fly out from Seattle to Dublin at noon. Doing so could potentially save you 31% 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 December 18, 2025.
Read through reviews of airlines operating flights from Seattle to Dublin, such as United Airlines, American Airlines, and Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
American Airlines
7.2
Good
11,054 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Aer Lingus
7.2
Good
1,399 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Icelandair
7.0
Good
591 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
British Airways
6.7
Okay
7,586 reviews
United Airlines
7.4
Good
9,095 reviews

Overall

7.4

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 12 airlines.

  • 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 $474, 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 Canada, from $341, and Icelandair, from $357. 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 $179. 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 (62%), Aer Lingus (62%) or British Airways (62%) 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 $414. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for $445 on average, our data indicates $1,664 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, 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 $664). 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
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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$402FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$341Average$648FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$357Average$567FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$547FlexibilityNo cancel feeOn-time77%
KLMCheapest$405Average$634FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$407Average$579FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$411Average$704FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$431Average$725FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$444Average$488FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$467Average$726FlexibilityNo cancel feeOn-time76%

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