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$284+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
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 January or November, booked 26 days in advance, depart on a Wednesday or Monday 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$540
(Mytrip)

One-way from

$284
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$599

Good round-trip deal

$701 or less

Good one-way deal

$556 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. 23% potential increase in price ($207 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 25, 2025.

This Mytrip deal was found by Cheapflights users on 3/24. 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 5/113:45 pmSEA - DUB
2 stops23h 20mMultiple Airlines
Sun 5/186:25 amDUB - SEA
2 stops19h 25mMultiple Airlines
Deal found 3/24$540
This oojo deal was found by Cheapflights users on 3/24. 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.
Mon 9/84:00 pmSEA - DUB
1 stop18h 15mScandinavian Airlines
Sat 9/2010:15 amDUB - SEA
1 stop35h 45mScandinavian Airlines
Deal found 3/24$547
This United Airlines deal was found by Cheapflights users on 3/24. 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 11/127:12 amSEA - DUB
2 stops18h 53mUnited Airlines
Wed 11/269:00 amDUB - SEA
2 stops34h 40mUnited Airlines
Deal found 3/24$549
This Air Canada deal was found by Cheapflights users on 3/24. 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.
Mon 11/1710:35 amSEA - DUB
2 stops36h 35mAir Canada
Fri 11/289:00 amDUB - SEA
1 stop33h 40mAir Canada
Deal found 3/24$559
This oojo deal was found by Cheapflights users on 3/24. 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 10/153:45 pmSEA - DUB
1 stop13h 30mIcelandair
Wed 10/2212:15 pmDUB - SEA
1 stop16h 25mIcelandair
Deal found 3/24$588
This JetBlue deal was found by Cheapflights users on 3/23. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:38 amSEA - DUB
1 stop13h 22mJetBlue
Thu 5/1511:30 amDUB - SEA
1 stop17h 24mJetBlue
Deal found 3/23$626
This Lufthansa deal was found by Cheapflights users on 3/24. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/252:55 pmSEA - DUB
1 stop32h 50mLufthansa
Thu 9/49:20 amDUB - SEA
2 stops35h 45mLufthansa
Deal found 3/24$641
This Expedia deal was found by Cheapflights users on 3/24. 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 4/26:45 pmSEA - DUB
Nonstop9h 00mAer Lingus
Wed 4/93:20 pmDUB - SEA
Nonstop9h 39mAer Lingus
Deal found 3/24$670
This SWISS deal was found by Cheapflights users on 3/24. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/14:25 pmSEA - DUB
1 stop17h 25mSWISS
Mon 9/156:40 pmDUB - SEA
2 stops31h 56mSWISS
Deal found 3/24$678
This FlightHub deal was found by Cheapflights users on 3/24. 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.
Sun 3/307:10 pmSEA - DUB
1 stop30h 25mTurkish Airlines
Sun 6/221:35 pmDUB - SEA
1 stop35h 40mTurkish Airlines
Deal found 3/24$741
This Kiwi.com deal was found by Cheapflights users on 3/24. 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 9/232:05 pmSEA - DUB
1 stop12h 45mWestJet
Sun 9/2812:50 pmDUB - SEA
1 stop15h 39mWestJet
Deal found 3/24$765

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 25, 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

Sun 5/11

3:45 pm-11:05 pm

2 stops23h 20m

Dublin

Sun 5/18

6:25 am-5:50 pm

2 stops19h 25m

$540

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 9/8

4:00 pm-6:15 pm

1 stop18h 15m

Dublin

Sat 9/20

10:15 am-2:00 pm

1 stop35h 45m

$547

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 5/8

11:38 am-9:00 am

1 stop13h 22m

Dublin

Thu 5/15

11:30 am-8:54 pm

1 stop17h 24m

$626

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 8/26

5:40 am-7:45 am

1 stop18h 05m

Dublin

Tue 9/23

9:20 am-12:58 pm

2 stops35h 38m

$628

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 9/20

7:15 pm-7:45 am

2 stops28h 30m

Dublin

Tue 9/30

9:20 am-6:36 pm

2 stops17h 16m

$638

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 8/25

2:55 pm-7:45 am

1 stop32h 50m

Dublin

Thu 9/4

9:20 am-1:05 pm

2 stops35h 45m

$641

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 8/7

3:45 pm-11:05 am

1 stop11h 20m

Dublin

Wed 8/20

12:15 pm-11:25 am

1 stop31h 10m

$672

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-5:50 pm

1 stop17h 25m

Dublin

Mon 9/15

6:40 pm-6:36 pm

2 stops31h 56m

$678

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 4/22

6:45 pm-11:45 am

Nonstop9h 00m

Dublin

Wed 5/7

3:20 pm-4:59 pm

Nonstop9h 39m

$756

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 7/8

7:00 pm-11:25 pm

2 stops20h 25m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 24 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
GotogatePrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy2 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 21, 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 $509). Flying from Seattle to Dublin in June is currently the most expensive (average of $1,010). 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 25, 2025.

It’s typically best to fly out from Seattle to Dublin in the evening. 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 Thursday evenings 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.

Rainfall in Dublin by month

Plan your trip to Dublin by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dublin ranges from 1.9 - 3.1 inches per month. October is typically the wettest month, when rainfall can reach 3.1 in. February is typically the driest time to visit Dublin when rainfall is around 1.9 in.

Temperature in Dublin by month

Plan your trip to Dublin by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dublin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 25, 2025.
To help decide which airline to fly from Seattle to Dublin, see what other customers have to say about Delta, Finnair and SWISS. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,266 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,569 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,423 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews

Overall

8.0

Food

7.3

Comfort

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 11 airlines.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 18 users have taken a look at flights from Seattle/Tacoma Intl to Dublin.

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

    Cheapflights users have booked flights from Seattle to Dublin round-trip from $575. Other airlines that can offer you cheap pricing are Air Canada, from $616, and JetBlue, from $626. You may be able to fly from Seattle to Dublin for 15% 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 TAP AIR PORTUGAL. According to our data, you can fly for as low as $325. Users have also found prices from $340 and $405 on WestJet and Scandinavian Airlines, 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 (81%), Aer Lingus (81%) or British Airways (81%) 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 $460. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for $467 on average our data indicates $2,453 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 $55 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 $509). Flying from Seattle to Dublin in June is currently the most expensive (average of $1,010). 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 Seattle?

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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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$380Average$598FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$436Average$750FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$437Average$640FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$473Average$488FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$480Average$729FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$501Average$744FlexibilityNo cancel feeOn-time76%
DeltaCheapest$505Average$682FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$509Average$749FlexibilityNo cancel feeOn-time67%
KLMCheapest$522Average$637FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$532Average$774FlexibilityNo cancel feeOn-time77%
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