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$350+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — SEA
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in February or January, booked 20 days in advance, depart on a Sunday or Saturday 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 septiembre 11, 2025.

Round-trip from

$416
(SmartFares)

One-way from

$350
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$690

Good round-trip deal

$523 or less

Good one-way deal

$619 or less
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. 19% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 11, 2025.

This SmartFares deal was found by Cheapflights users on 9/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/1612:40 pmDUB - SEA
1 stop33h 20mScandinavian Airlines
mié. 10/224:20 pmSEA - DUB
1 stop35h 30mScandinavian Airlines
Deal found 9/11$416
This lol.travel deal was found by Cheapflights users on 9/11. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/212:40 pmDUB - SEA
1 stop33h 20mScandinavian Airlines
mié. 10/154:20 pmSEA - DUB
1 stop35h 30mScandinavian Airlines
Deal found 9/11$462
This oojo deal was found by Cheapflights users on 9/10. 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.
sáb. 10/1110:15 amDUB - SEA
1 stop35h 45mScandinavian Airlines
dom. 10/194:20 pmSEA - DUB
1 stop35h 30mScandinavian Airlines
Deal found 9/10$475
This TravelUp deal was found by Cheapflights users on 9/10. 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.
jue. 11/65:00 amDUB - SEA
1 stop15h 10mLufthansa
mar. 11/117:00 amSEA - DUB
1 stop17h 10mLufthansa
Deal found 9/10$517
This Gotogate deal was found by Cheapflights users on 9/11. 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.
lun. 11/311:30 amDUB - SEA
1 stop13h 30mIcelandair
dom. 11/162:35 pmSEA - DUB
1 stop11h 40mIcelandair
Deal found 9/11$520
This TravelUp deal was found by Cheapflights users on 9/10. 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.
mié. 11/55:10 amDUB - SEA
2 stops21h 42mLufthansa
lun. 11/107:00 amSEA - DUB
1 stop17h 10mLufthansa
Deal found 9/10$522
This TravelUp deal was found by Cheapflights users on 9/11. 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.
vie. 10/311:40 pmDUB - SEA
1 stop29h 50mMultiple Airlines
vie. 11/141:35 pmSEA - DUB
1 stop12h 25mMultiple Airlines
Deal found 9/11$533
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
mié. 9/245:55 amDUB - SEA
1 stop14h 00mLufthansa
dom. 10/127:00 amSEA - DUB
1 stop18h 45mLufthansa
Deal found 9/9$544

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 septiembre 11, 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

mié. 11/5

10:40 am-6:52 pm

1 stop16h 12m

Seattle/Tacoma Intl

lun. 11/10

7:00 am-8:10 am

1 stop17h 10m

$539

DublinSeattle

DUB - SEA

DUBSEA

Dublin

mié. 9/24

5:55 am-11:55 am

1 stop14h 00m

Seattle/Tacoma Intl

dom. 10/12

7:00 am-9:45 am

1 stop18h 45m

$544

DublinSeattle

DUB - SEA

DUBSEA

Dublin

vie. 11/7

1:40 pm-11:30 am

1 stop29h 50m

Seattle/Tacoma Intl

lun. 11/10

6:50 pm-7:40 pm

1 stop16h 50m

$545

DublinSeattle

DUB - SEA

DUBSEA

Dublin

jue. 9/25

5:55 am-2:16 pm

2 stops16h 21m

Seattle/Tacoma Intl

dom. 9/28

8:00 am-10:20 am

1 stop18h 20m

$551

DublinSeattle

DUB - SEA

DUBSEA

Dublin

jue. 9/25

4:10 pm-5:50 pm

Nonstop9h 40m

Seattle/Tacoma Intl

sáb. 10/11

7:35 pm-12:35 pm

Nonstop9h 00m

$554

DublinSeattle

DUB - SEA

DUBSEA

Dublin

jue. 9/25

9:20 am-7:31 pm

1 stop18h 11m

Seattle/Tacoma Intl

sáb. 10/11

1:12 pm-10:20 am

1 stop13h 08m

$558

DublinSeattle

DUB - SEA

DUBSEA

Dublin

mié. 9/24

9:20 am-2:16 pm

1 stop12h 56m

Seattle/Tacoma Intl

dom. 10/12

5:00 am-9:45 am

2 stops20h 45m

$560

DublinSeattle

DUB - SEA

DUBSEA

Dublin

vie. 11/7

9:00 am-12:59 am

2 stops23h 59m

Seattle/Tacoma Intl

lun. 11/10

5:05 am-8:10 am

2 stops19h 05m

$561

DublinSeattle

DUB - SEA

DUBSEA

Dublin

vie. 11/7

9:00 am-12:59 am

2 stops23h 59m

Seattle/Tacoma Intl

mié. 11/12

8:36 am-10:20 am

2 stops17h 44m

$561

DublinSeattle

DUB - SEA

DUBSEA

Dublin

jue. 11/6

5:00 am-10:16 pm

2 stops25h 16m

Seattle/Tacoma Intl

mar. 11/11

5:50 am-7:10 am

2 stops17h 20m

$562

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
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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 August 29, 2025.

To ensure you get the cheapest price possible for a flight from Dublin to Seattle, you should look to book at least 20 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 June is currently the most expensive (average of $388). 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 septiembre 11, 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 8% on airfare.

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 septiembre 11, 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
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

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
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

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
1,271 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

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
7.0
Good
546 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Crew

8.0

Overall

7.2

Food

6.4

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 40m for a nonstop flight. There are 2 flights 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?

    Lufthansa and American Airlines can get you from Dublin to Seattle in just under 16h 12m. Your travel time can differ by up to 13h 38m. 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 $684, respectively. Aer Lingus is currently priced 27% below the average price you’ll pay for this route.

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

    Consider American Airlines (78%), Aer Lingus (78%) or British Airways (78%) 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 $523. While the most popular route (Dublin - Seattle/Tacoma Intl) can be booked for $492 on average, our data indicates $847 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 June is currently the most expensive (average of $388). 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
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

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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
Dublin to Spokane flights
Cork to Portland flights
Shannon to Spokane flights
Shannon to Portland flights
Shannon to Seattle 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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$525Average$781FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$556Average$712FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$684Average$787FlexibilityNo cancel feeOn-time71%

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