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$260+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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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

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3. Compare prices and book

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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 April 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$592
(Delta)

One-way from

$280
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$711

Good round-trip deal

$757 or less

Good one-way deal

$529 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 ($212 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 15, 2025.

This oojo deal was found by Cheapflights users on 4/15. 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.
Fri 9/53:45 pmSEA - DUB
1 stop13h 30mIcelandair
Thu 9/182:15 pmDUB - SEA
1 stop11h 35mIcelandair
Deal found 4/15$503
This CheapOair deal was found by Cheapflights users on 4/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:15 pmSEA - DUB
2 stops52h 30mAir Canada
Thu 9/189:20 amDUB - SEA
1 stop18h 11mAir Canada
Deal found 4/15$526
This FlightHub deal was found by Cheapflights users on 4/15. 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.
Mon 9/810:00 amSEA - DUB
1 stop13h 45mLufthansa
Mon 9/295:40 pmDUB - SEA
1 stop26h 15mLufthansa
Deal found 4/15$569
This FlightHub deal was found by Cheapflights users on 4/15. 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.
Mon 9/12:55 pmSEA - DUB
1 stop32h 50mMultiple Airlines
Mon 9/299:20 amDUB - SEA
2 stops20h 56mMultiple Airlines
Deal found 4/15$585
This United Airlines deal was found by Cheapflights users on 4/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/276:15 amSEA - DUB
2 stops20h 55mUnited Airlines
Tue 5/131:35 pmDUB - SEA
2 stops34h 23mUnited Airlines
Deal found 4/15$594
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2711:55 amSEA - DUB
1 stop12h 00mDelta
Tue 6/311:00 amDUB - SEA
1 stop19h 00mDelta
Deal found 4/13$602
This KLM deal was found by Cheapflights users on 4/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/217:23 amSEA - DUB
1 stop17h 52mKLM
Mon 4/288:45 pmDUB - SEA
1 stop23h 00mKLM
Deal found 4/15$604
This Bravofly deal was found by Cheapflights users on 4/14. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/216:45 pmSEA - DUB
Nonstop9h 00mAer Lingus
Wed 5/73:20 pmDUB - SEA
Nonstop9h 39mAer Lingus
Deal found 4/14$609
This JetBlue deal was found by Cheapflights users on 4/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:35 amSEA - DUB
1 stop12h 45mJetBlue
Wed 5/1411:30 amDUB - SEA
1 stop17h 24mJetBlue
Deal found 4/15$627
This SWISS deal was found by Cheapflights users on 4/14. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/213:24 pmSEA - DUB
2 stops36h 46mSWISS
Mon 4/286:40 pmDUB - SEA
2 stops34h 35mSWISS
Deal found 4/14$630
This British Airways deal was found by Cheapflights users on 4/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/258:20 pmSEA - DUB
1 stop27h 25mBritish Airways
Thu 6/198:35 amDUB - SEA
1 stop17h 45mBritish Airways
Deal found 4/15$643
This Kiwi.com deal was found by Cheapflights users on 4/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/241:50 pmSEA - DUB
2 stops36h 10mWestJet
Tue 6/1712:50 pmDUB - SEA
1 stop15h 38mWestJet
Deal found 4/15$672

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 April 15, 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

Fri 9/5

3:45 pm-1:15 pm

1 stop13h 30m

Dublin

Thu 9/18

2:15 pm-5:50 pm

1 stop11h 35m

$503

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 9/5

7:15 pm-7:45 am

2 stops52h 30m

Dublin

Thu 9/18

9:20 am-7:31 pm

1 stop18h 11m

$526

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 9/8

10:00 am-7:45 am

1 stop13h 45m

Dublin

Mon 9/29

5:40 pm-11:55 am

1 stop26h 15m

$569

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 9/1

2:55 pm-7:45 am

1 stop32h 50m

Dublin

Mon 9/29

9:20 am-10:16 pm

2 stops20h 56m

$585

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 4/27

6:15 am-11:10 am

2 stops20h 55m

Dublin

Tue 5/13

1:35 pm-3:58 pm

2 stops34h 23m

$594

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 5/27

11:55 am-7:55 am

1 stop12h 00m

Dublin

Tue 6/3

11:00 am-10:00 pm

1 stop19h 00m

$602

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 5/6

6:45 pm-11:45 am

Nonstop9h 00m

Dublin

Tue 5/13

3:20 pm-4:59 pm

Nonstop9h 39m

$611

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 5/1

11:35 am-8:20 am

1 stop12h 45m

Dublin

Wed 5/14

11:30 am-8:54 pm

1 stop17h 24m

$627

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/30

3:24 pm-5:50 pm

2 stops18h 26m

Dublin

Mon 5/26

6:40 pm-9:11 pm

2 stops34h 31m

$630

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 5/25

8:20 pm-7:45 am

1 stop27h 25m

Dublin

Mon 6/16

8:55 pm-11:10 am

1 stop22h 15m

$643

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 25 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*2 stars
CheapOairPrice Accuracy1 starTrust Score*3 stars
FlightnetworkPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Dublin flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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 April 11, 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 $1,006). 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 April 15, 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. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Dublin

Explore weekly flight availability from Seattle to Dublin. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 15, 2025.

The most flights from SEA to DUB are scheduled on a Monday (3 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

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 April 15, 2025.
To help decide which airline to fly from Seattle to Dublin, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
7,917 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
1,269 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
1,578 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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
8,658 reviews
Delta
8.0
Very good
7,917 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

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 are 2 flights from Seattle/Tacoma Intl to Dublin per day from 11 airlines.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 16 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 $592. Other airlines that can offer you cheap pricing are United Airlines, from $594, and Icelandair, from $595. You may be able to fly from Seattle to Dublin for 13% 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 $369. Users have also found prices from $391 and $406 on Scandinavian Airlines and Air Canada, 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 $478. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for $416 on average our data indicates $752 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 $49 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 $1,006). 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$380Average$597FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$437Average$632FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$443Average$755FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$468Average$506FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$480Average$752FlexibilityNo cancel feeOn-time69%
DeltaCheapest$490Average$678FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$501Average$792FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$509Average$752FlexibilityNo cancel feeOn-time67%
KLMCheapest$522Average$686FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$532Average$774FlexibilityNo cancel feeOn-time77%

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