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$317+ Cheap flights from Dublin (DUB) to Seattle (SEA)

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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
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
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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Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in February or November, booked 62 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$380
(Mytrip)

One-way from

$317
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$694

Good round-trip deal

$803 or less

Good one-way deal

$617 or less
Provider with most accurate pricing for Dublin-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Dublin-Seattle/Tacoma Intl flights.
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From Dublin to Seattle/Tacoma Intl
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One-way flight from Dublin to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 21% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 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 Dublin to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Dublin to Seattle/Tacoma Intl.
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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 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.
Thu 5/2212:40 pmDUB - SEA
1 stop33h 10mScandinavian Airlines
Fri 5/304:00 pmSEA - DUB
1 stop33h 25mScandinavian Airlines
Deal found 3/24$380
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:15 pmDUB - SEA
1 stop16h 25mIcelandair
Sat 9/273:45 pmSEA - DUB
1 stop11h 20mIcelandair
Deal found 3/24$572
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.
Thu 5/86:15 amDUB - SEA
2 stops22h 25mMultiple Airlines
Thu 5/157:00 pmSEA - DUB
2 stops20h 25mMultiple Airlines
Deal found 3/24$626
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/315:55 amDUB - SEA
1 stop18h 05mDelta
Wed 4/161:30 pmSEA - DUB
1 stop17h 30mDelta
Deal found 3/24$650
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/313:20 pmDUB - SEA
Nonstop9h 39mAer Lingus
Sun 4/136:45 pmSEA - DUB
Nonstop9h 00mAer Lingus
Deal found 3/24$656
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/68:45 pmDUB - SEA
1 stop23h 00mKLM
Sun 4/131:55 pmSEA - DUB
1 stop18h 45mKLM
Deal found 3/24$664
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/412:40 pmDUB - SEA
1 stop34h 57mAmerican Airlines
Thu 4/178:20 pmSEA - DUB
1 stop29h 20mAmerican Airlines
Deal found 3/24$672
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3112:40 pmDUB - SEA
1 stop18h 29mIberia
Sun 4/136:58 amSEA - DUB
1 stop18h 47mIberia
Deal found 3/24$703
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.
Sat 4/1910:40 amDUB - SEA
1 stop20h 05mJetBlue
Fri 4/2511:39 pmSEA - DUB
1 stop24h 41mJetBlue
Deal found 3/24$738
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.
Thu 5/229:45 amDUB - SEA
3 stops29h 52mWestJet
Sat 5/317:05 amSEA - DUB
2 stops18h 55mWestJet
Deal found 3/24$780
This TravelUp 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/43:20 pmDUB - SEA
Nonstop9h 39mBritish Airways
Sat 4/198:20 pmSEA - DUB
1 stop12h 55mBritish Airways
Deal found 3/24$802
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.
Thu 4/179:50 amDUB - SEA
1 stop19h 51mUnited Airlines
Fri 4/255:15 amSEA - DUB
2 stops21h 55mUnited Airlines
Deal found 3/24$809

Cheapflights Fare Finder

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 March 25, 2025.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.

Fly from

Dublin

Fly to

Seattle

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 5/22

12:40 pm-1:50 pm

1 stop33h 10m

Seattle/Tacoma Intl

Fri 5/30

4:00 pm-9:25 am

1 stop33h 25m

$380

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 9/19

12:15 pm-8:40 pm

1 stop16h 25m

Seattle/Tacoma Intl

Sat 9/27

3:45 pm-11:05 am

1 stop11h 20m

$572

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 5/8

6:15 am-8:40 pm

2 stops22h 25m

Seattle/Tacoma Intl

Thu 5/15

7:00 pm-11:25 pm

2 stops20h 25m

$626

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 4/13

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

Sun 4/20

6:20 am-10:25 am

2 stops20h 05m

$662

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 4/6

8:45 pm-11:45 am

1 stop23h 00m

Seattle/Tacoma Intl

Sun 4/13

1:55 pm-4:40 pm

1 stop18h 45m

$664

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 4/4

12:40 pm-3:37 pm

1 stop34h 57m

Seattle/Tacoma Intl

Thu 4/17

8:20 pm-9:40 am

1 stop29h 20m

$672

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 5/18

3:20 pm-4:59 pm

Nonstop9h 39m

Seattle/Tacoma Intl

Wed 5/28

6:45 pm-11:45 am

Nonstop9h 00m

$675

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 4/19

10:40 am-10:45 pm

1 stop20h 05m

Seattle/Tacoma Intl

Fri 4/25

11:39 pm-8:20 am

1 stop24h 41m

$738

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 5/22

9:45 am-7:37 am

3 stops29h 52m

Seattle/Tacoma Intl

Sat 5/31

7:05 am-10:00 am

2 stops18h 55m

$780

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 4/4

3:20 pm-4:59 pm

Nonstop9h 39m

Seattle/Tacoma Intl

Sat 4/19

8:20 pm-5:15 pm

1 stop12h 55m

$802

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 21 results
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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 March.
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*1 star
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.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Seattle

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 March 21, 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Seattle, you should look to book at least 62 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 March 25, 2025.

One of the essential ways to save on airfare from Dublin to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 15% 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 March 25, 2025.
See what other customers who have flown with Delta, KLM and United Airlines 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
7,890 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,890 reviews
Delta
8.0
Very good
7,890 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,318 reviews
Delta
8.0
Very good
7,890 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,605 reviews
Delta
8.0
Very good
7,890 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
JetBlue
7.3
Good
2,924 reviews
Delta
8.0
Very good
7,890 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,745 reviews
Delta
8.0
Very good
7,890 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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.

  • What airports do I use to fly from Dublin to Seattle?

    If you book a flight from Dublin to Seattle, you will be flying from Dublin to Seattle/Tacoma Intl. Flights to Seattle/Tacoma Intl (SEA) from Dublin (DUB) take 9h 39m for a nonstop flight. There is 1 flight from Dublin to Seattle per day from 3 airlines.

  • How popular is this Dublin to Seattle flight route?

    Flights from Dublin to Seattle/Tacoma Intl have been viewed 2 times in the past calendar month.

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

    Flying on Scandinavian Airlines is currently your cheapest option to Seattle, with prices starting at $380. Additional round-trip tickets that might be worth considering are offered by Icelandair and Delta, with the lowest prices starting at $572 and $662, respectively. Scandinavian Airlines is currently priced 49% 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 WestJet, with whom users have recently found tickets for as low as $330. However, be on the lookout for offers from Scandinavian Airlines and Icelandair, 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 (82%), Aer Lingus (82%) or British Airways (82%) 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 $535. While the most popular route (Dublin - Seattle/Tacoma Intl) can be booked for $390 on average our data indicates $804 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
Tacoma
Lakewood
Renton
Lacey
Ocean Shores
Leavenworth
Federal Way
Olympia
Cle Elum
Centralia
Mukilteo
Aberdeen
Shoreline
Lynnwood
Shelton
Silverdale
Redmond
Monroe

Browse thousands of different options on Cheapflights for your next trip

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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
Dublin to Spokane flights
Cork to Seattle flights
Shannon to Seattle flights
Shannon to Portland flights
Shannon to Spokane flights
Cork 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$556Average$766FlexibilityNo cancel feeOn-time76%
Aer LingusCheapest$585Average$880FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$684Average$832FlexibilityNo cancel feeOn-time71%
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