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$375+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
nov. 27 — déc. 41
jeu. 11/27
jeu. 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in February or November, booked 56 days in advance, depart on a Sunday or Tuesday and return on a Wednesday

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 octobre 28, 2025.

This Mytrip deal was found by Cheapflights users on 10/27. 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.
ven. 12/511:30 amDUB - SEA
1 stop13h 30mIcelandair
dim. 12/72:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 10/27$472
This American Airlines deal was found by Cheapflights users on 10/28. 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.
jeu. 11/2710:30 amDUB - SEA
1 stop33h 00mAmerican Airlines
lun. 12/111:42 amSEA - DUB
2 stops21h 23mAmerican Airlines
Deal found 10/28$496
This American Airlines deal was found by Cheapflights users on 10/27. 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.
dim. 11/2312:55 pmDUB - SEA
1 stop16h 21mAmerican Airlines
mar. 12/26:50 pmSEA - DUB
1 stop14h 10mAmerican Airlines
Deal found 10/27$502
This American Airlines deal was found by Cheapflights users on 10/26. 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.
ven. 11/712:55 pmDUB - SEA
1 stop16h 21mAmerican Airlines
lun. 11/106:50 pmSEA - DUB
1 stop14h 15mAmerican Airlines
Deal found 10/26$503
This American Airlines deal was found by Cheapflights users on 10/28. 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.
ven. 11/2112:55 pmDUB - SEA
1 stop16h 21mAmerican Airlines
lun. 12/111:42 amSEA - DUB
2 stops21h 23mAmerican Airlines
Deal found 10/28$504
This Air France deal was found by Cheapflights users on 10/27. 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.
mer. 11/265:55 amDUB - SEA
1 stop13h 50mMultiple Airlines
mar. 12/21:40 pmSEA - DUB
1 stop18h 05mMultiple Airlines
Deal found 10/27$505
This Icelandair deal was found by Cheapflights users on 10/28. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 11/711:30 amDUB - SEA
1 stop13h 30mIcelandair
lun. 11/102:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 10/28$506
This American Airlines deal was found by Cheapflights users on 10/28. 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.
sam. 11/2211:30 amDUB - SEA
2 stops31h 14mAmerican Airlines
sam. 11/291:35 pmSEA - DUB
1 stop12h 15mAmerican Airlines
Deal found 10/28$507
This American Airlines deal was found by Cheapflights users on 10/27. 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.
dim. 11/911:30 amDUB - SEA
1 stop18h 50mAmerican Airlines
lun. 11/2411:34 amSEA - DUB
2 stops21h 31mAmerican Airlines
Deal found 10/27$508
This Delta deal was found by Cheapflights users on 10/27. 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.
sam. 11/225:55 amDUB - SEA
1 stop13h 50mDelta
sam. 12/139:25 amSEA - DUB
1 stop14h 20mDelta
Deal found 10/27$509
This Delta deal was found by Cheapflights users on 10/28. 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.
sam. 11/225:55 amDUB - SEA
1 stop13h 50mDelta
sam. 11/299:28 amSEA - DUB
1 stop14h 17mDelta
Deal found 10/28$510
This Delta deal was found by Cheapflights users on 10/28. 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.
ven. 11/75:55 amDUB - SEA
1 stop13h 50mDelta
dim. 11/236:00 amSEA - DUB
2 stops22h 40mDelta
Deal found 10/28$511

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 octobre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$472
(Mytrip)

One-way from

$375
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$667

Good round-trip deal

$562 or less

Good one-way deal

$635 or less
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
One-way flight from Dublin to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($177 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Dublin to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from Dublin to Seattle/Tacoma Intl.
Search Deals

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 octobre 28, 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

ven. 11/7

12:55 pm-9:16 pm

1 stop16h 21m

Seattle/Tacoma Intl

lun. 11/10

6:50 pm-5:05 pm

1 stop14h 15m

$503

DublinSeattle

DUB - SEA

DUBSEA

Dublin

ven. 11/14

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

ven. 11/28

9:30 am-3:45 pm

2 stops22h 15m

$508

DublinSeattle

DUB - SEA

DUBSEA

Dublin

mar. 11/25

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

mar. 12/2

9:30 am-3:45 pm

2 stops22h 15m

$509

DublinSeattle

DUB - SEA

DUBSEA

Dublin

sam. 11/22

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

sam. 12/13

11:30 am-8:45 am

1 stop13h 15m

$509

DublinSeattle

DUB - SEA

DUBSEA

Dublin

sam. 11/22

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

sam. 11/29

9:28 am-7:45 am

1 stop14h 17m

$509

DublinSeattle

DUB - SEA

DUBSEA

Dublin

jeu. 12/11

5:55 am-11:50 am

1 stop13h 55m

Seattle/Tacoma Intl

jeu. 12/18

6:00 am-7:45 am

1 stop17h 45m

$509

DublinSeattle

DUB - SEA

DUBSEA

Dublin

ven. 11/7

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

mer. 11/12

9:43 am-12:40 pm

2 stops18h 57m

$511

DublinSeattle

DUB - SEA

DUBSEA

Dublin

sam. 11/8

5:55 am-11:45 am

1 stop13h 50m

Seattle/Tacoma Intl

lun. 11/10

6:00 am-12:40 pm

2 stops22h 40m

$512

DublinSeattle

DUB - SEA

DUBSEA

Dublin

dim. 11/9

5:55 am-3:35 pm

2 stops17h 40m

Seattle/Tacoma Intl

lun. 11/24

2:05 pm-3:45 pm

1 stop17h 40m

$512

DublinSeattle

DUB - SEA

DUBSEA

Dublin

mer. 1/21

7:40 pm-12:44 pm

3 stops49h 04m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 19 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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
GurufarePrice Accuracy2 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 Dublin-Seattle flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dublin-Seattle flight deals on Cheapflights vs. eDreams >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 Gurufare the most. Gurufare 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 October 24, 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Seattle, you should look to book at least 56 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, March is the cheapest month in which you can book a flight from Dublin to Seattle (average of $480). Flying from Dublin to Seattle in July is currently the most expensive (average of $792). 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 octobre 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dublin to Seattle as you normally would.

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 octobre 28, 2025.
Read reviews from past customers who have flown American Airlines, Aer Lingus, and Icelandair from Dublin to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,033 reviews

Crew

8.0

Boarding

7.5

Overall

7.2

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
American Airlines
7.2
Good
11,033 reviews
American Airlines
7.2
Good
11,033 reviews

Crew

8.0

Boarding

7.5

Overall

7.2

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
Aer Lingus
7.2
Good
1,360 reviews
American Airlines
7.2
Good
11,033 reviews

Crew

8.0

Boarding

7.5

Overall

7.2

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
Icelandair
7.1
Good
562 reviews
American Airlines
7.2
Good
11,033 reviews

Crew

8.0

Boarding

7.5

Overall

7.2

Comfort

7.2

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sep 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.

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 50m 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.

  • How long is the flight from Dublin to Seattle?

    American Airlines and Delta can get you from Dublin to Seattle in just under 13h 50m. Your travel time can differ by up to 2h 31m. The distance from Dublin to Seattle is about 4523 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Aer Lingus is currently your cheapest option to Seattle, with prices starting at $525. Additional round-trip tickets that might be worth considering are offered by Icelandair and American Airlines, with the lowest prices starting at $556 and $640, respectively. Aer Lingus is currently priced 26% below the average price you’ll pay for this route.

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

    Consider Aer Lingus (87%), British Airways (75%) or American Airlines (75%) 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 $518. While the most popular route (Dublin - Seattle/Tacoma Intl) can be booked for $472 on average, our data indicates $644 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, March is the cheapest month in which you can book a flight from Dublin to Seattle (average of $480). Flying from Dublin to Seattle in July is currently the most expensive (average of $792). 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?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

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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
Cork to Seattle flights
Shannon to Seattle flights
Shannon to Portland flights
Dublin to Spokane 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 octobre 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$525Average$724FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$556Average$712FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$640Average$860FlexibilityNo cancel feeOn-time71%

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