HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$355+ Cheap flights from Dublin (DUB) to Seattle (SEA)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dublin to Seattle 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.

The best prices from Dublin to Seattle/Tacoma Intl are usually found in November or April, booked 59 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from Dublin to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Seattle (SEA). 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 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$359
(Booking.com)

Popular in

July

Cheapest in

November

Average price

$733
Provider with most accurate pricing for Dublin-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dublin-Seattle/Tacoma Intl flights.
Search Deals
From Dublin to Seattle/Tacoma Intl
Search Deals
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Dublin to Seattle

Cheapest flights from Dublin to Seattle
Explore the most affordable flight options available from Dublin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Bravofly deal was found by Cheapflights users on 1/19. 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.
Sat 5/1012:15 pmDUB - SEA
1 stop13h 35mIcelandair
Fri 5/233:45 pmSEA - DUB
1 stop13h 30mIcelandair
Deal found 1/19$355
This TravelUp deal was found by Cheapflights users on 1/20. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/138:30 pmDUB - SEA
1 stop22h 50mBritish Airways
Tue 3/187:50 pmSEA - DUB
1 stop14h 10mBritish Airways
Deal found 1/20$428
This flygcity.se deal was found by Cheapflights users on 1/20. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/98:00 amDUB - SEA
1 stop20h 30mAir Canada
Mon 3/247:00 amSEA - DUB
2 stops17h 00mAir Canada
Deal found 1/20$429
This Ticket deal was found by Cheapflights users on 1/20. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/91:25 pmDUB - SEA
1 stop30h 15mMultiple Airlines
Mon 3/247:30 amSEA - DUB
1 stop17h 55mMultiple Airlines
Deal found 1/20$435
This United Airlines deal was found by Cheapflights users on 1/20. 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.
Fri 5/99:20 amDUB - SEA
1 stop20h 53mUnited Airlines
Fri 5/302:55 pmSEA - DUB
1 stop32h 50mUnited Airlines
Deal found 1/20$437
This Bravofly deal was found by Cheapflights users on 1/18. 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.
Sun 2/164:30 pmDUB - SEA
Nonstop9h 45mAer Lingus
Sun 3/28:00 pmSEA - DUB
Nonstop9h 10mAer Lingus
Deal found 1/18$442
This American Airlines deal was found by Cheapflights users on 1/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/119:30 amDUB - SEA
1 stop20h 36mAmerican Airlines
Fri 4/1812:59 amSEA - DUB
1 stop24h 46mAmerican Airlines
Deal found 1/19$478
This Delta deal was found by Cheapflights users on 1/19. 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.
Sat 5/108:55 amDUB - SEA
1 stop15h 00mDelta
Fri 5/238:50 amSEA - DUB
2 stops19h 45mDelta
Deal found 1/19$479
This ResecentrumGruppen deal was found by Cheapflights users on 1/19. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/511:50 amDUB - SEA
1 stop16h 29mLufthansa
Wed 3/123:00 pmSEA - DUB
1 stop18h 40mLufthansa
Deal found 1/19$491
This Gotogate deal was found by Cheapflights users on 1/19. 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.
Wed 9/1011:45 amDUB - SEA
2 stops58h 15mScandinavian Airlines
Wed 9/174:20 pmSEA - DUB
1 stop17h 55mScandinavian Airlines
Deal found 1/19$629
This Finnair deal was found by Cheapflights users on 1/20. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/312:40 pmDUB - SEA
1 stop20h 07mFinnair
Sat 7/195:40 pmSEA - DUB
1 stop31h 15mFinnair
Deal found 1/20$756
This Air France deal was found by Cheapflights users on 1/19. 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.
Mon 6/306:00 amDUB - SEA
1 stop13h 15mAir France
Thu 7/106:30 pmSEA - DUB
1 stop20h 10mAir France
Deal found 1/19$787

Find flights from Dublin to Seattle within your budget

Customize your flight search to find flights from Dublin to Seattle 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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 4/24

2:15 pm-5:50 pm

1 stop11h 35m

Seattle/Tacoma Intl

Wed 4/30

7:00 pm-11:05 am

1 stop32h 05m

$359

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 3/13

8:30 pm-12:20 pm

1 stop22h 50m

Seattle/Tacoma Intl

Tue 3/18

7:50 pm-5:00 pm

1 stop14h 10m

$428

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 3/9

8:00 am-8:30 pm

1 stop20h 30m

Seattle/Tacoma Intl

Mon 3/24

7:00 am-7:00 am

2 stops17h 00m

$429

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 3/9

1:25 pm-12:40 pm

1 stop30h 15m

Seattle/Tacoma Intl

Mon 3/24

7:30 am-8:25 am

1 stop17h 55m

$435

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 5/9

9:20 am-10:13 pm

1 stop20h 53m

Seattle/Tacoma Intl

Fri 5/30

2:55 pm-7:45 am

1 stop32h 50m

$437

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 3/9

4:30 pm-7:15 pm

Nonstop9h 45m

Seattle/Tacoma Intl

Mon 3/24

9:00 pm-1:10 pm

Nonstop9h 10m

$450

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 5/18

10:40 am-4:59 pm

1 stop14h 19m

Seattle/Tacoma Intl

Wed 5/28

8:00 am-10:20 am

1 stop18h 20m

$459

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 3/14

5:55 am-6:14 pm

2 stops19h 19m

Seattle/Tacoma Intl

Sun 3/23

10:55 pm-8:25 am

1 stop26h 30m

$471

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 2/16

4:30 pm-6:15 pm

Nonstop9h 45m

Seattle/Tacoma Intl

Sun 3/2

6:50 pm-7:05 pm

1 stop16h 15m

$591

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 7/3

12:40 pm-12:47 am

1 stop20h 07m

Seattle/Tacoma Intl

Sat 7/19

5:40 pm-8:55 am

1 stop31h 15m

$756

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 23 results
1
2
3

Compare providers for flights from Dublin to Seattle

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 Dublin to Seattle in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust 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 Dublin-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dublin-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Dublin-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dublin-Seattle 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 Dublin-Seattle 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 Dublin to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Dublin 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.

Travel insights for flights from Dublin to Seattle

Get recent, data-driven insights about flights from Dublin to Seattle including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Dublin to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Dublin to Seattle. Price data was last updated on January 17, 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Seattle, you should look to book at least 58 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 Dublin to Seattle?

Currently, January is the cheapest month in which you can book a flight from Dublin to Seattle (average of $238). Flying from Dublin to Seattle in July is currently the most expensive (average of $411). 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 DUB to SEA?

Find hourly flight availability from Dublin to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

One of the essential ways to save on airfare from Dublin to Seattle is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 12% on airfare.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated January 21, 2025.
See what other customers who have flown with British Airways, American Airlines and KLM from Dublin to Seattle have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,982 reviews
Delta
8.0
Very good
8,521 reviews

Entertainment

7.9

Crew

8.6

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Dublin to Seattle. 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 Dublin to Seattle flight route?

    Flights from Dublin to Seattle/Tacoma Intl have been viewed 4 times in the past calendar month.

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

    Flying on Icelandair is currently your cheapest option to Seattle, with prices starting at $359. Additional round-trip tickets that might be worth considering are offered by British Airways and Air Canada, with the lowest prices starting at $428 and $429, respectively. Icelandair is currently priced 52% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Dublin to Seattle one-way?

    The cheapest airline one-way is Icelandair, with whom users have recently found tickets for as low as $408. However, be on the lookout for offers from WestJet and British Airways, as they are both options that can get you from Dublin to Seattle for a low price.

  • What are the most reliable airlines from Dublin to Seattle?

    Consider American Airlines (70%), Aer Lingus (70%) or British Airways (70%) when booking your flight. These represent the most reliable airlines when flying from Dublin to Seattle.

  • What are the cheapest flights from Dublin to Seattle?

    Looking at all options, your cheapest flight can be booked for $575. While the most popular route (Dublin - Seattle/Tacoma Intl) can be booked for $355 on average our data indicates $686 when flying from Dublin to Seattle.

  • Can I find deals for flights from Dublin to Seattle that include hotel bookings?

    Yes. In addition to deals on Dublin to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Seattle.

  • Can I find deals for business class flights from Dublin to Seattle?

    Yes. Cheapflights offers flight deals from Dublin to Seattle 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 Dublin to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Dublin to Seattle (average of $238). Flying from Dublin to Seattle in July is currently the most expensive (average of $411). 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
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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 Dublin to Seattle

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

Top 3 airlines flying from Dublin to Seattle

Discover the top 3 airlines that operate flights from Dublin to Seattle. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$496Average$852FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$556Average$752FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$640Average$787FlexibilityNo cancel feeOn-time71%
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.