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Cheap flights from Dublin to Seattle from €305

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Seattle departing on 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

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Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€403Icelandair
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Wed, 18 Feb - Sat, 28 Feb
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€404Icelandair
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Wed, 19 Nov - Wed, 3 Dec
KLM Logo
05:55 - 11:45DUB-SEA
13h 50m1 stop
KLM Logo
11:30 - 08:45SEA-DUB
13h 15m1 stop
€422KLM
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Fri, 21 Nov - Fri, 5 Dec
KLM Logo
05:55 - 11:45DUB-SEA
13h 50m1 stop
KLM Logo
09:45 - 12:40SEA-DUB
18h 55m2 stops
€423KLM
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Fri, 21 Nov - Fri, 5 Dec
American Airlines Logo
08:50 - 16:55DUB-SEA
16h 05m1 stop
American Airlines Logo
13:35 - 15:00SEA-DUB
17h 25m1 stop
€425American Airlines
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Wed, 28 Jan - Sat, 7 Feb
American Airlines Logo
10:20 - 16:55DUB-SEA
14h 35m1 stop
American Airlines Logo
13:35 - 10:00SEA-DUB
12h 25m1 stop
€426American Airlines
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Wed, 18 Feb - Fri, 27 Feb
Aer Lingus Logo
16:30 - 18:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
€435Aer Lingus
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Fri, 21 Nov - Fri, 5 Dec
British Airways Logo
08:50 - 21:47DUB-SEA
20h 57m2 stops
British Airways Logo
13:35 - 12:45SEA-DUB
15h 10m1 stop
€437British Airways
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Wed, 28 Jan - Sat, 7 Feb
Aer Lingus Logo
16:30 - 19:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
19:50 - 17:45SEA-DUB
14h 55m1 stop
€488Aer Lingus
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Fri, 13 Mar - Sun, 22 Mar
British Airways Logo
11:30 - 22:10DUB-SEA
18h 40m1 stop
British Airways Logo
00:31 - 07:10SEA-DUB
22h 39m1 stop
€498British Airways
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Tue, 2 Dec - Sat, 6 Dec

Icelandair flights from Dublin to Seattle

Our best Icelandair deals on Dublin to Seattle flight tickets
Icelandair
18 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
28 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€403
Find similar
Icelandair
19 Nov
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
3 Dec
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€404
Find similar
Icelandair
28 Jan
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
7 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€407
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American Airlines flights from Dublin to Seattle

Our best American Airlines deals on Dublin to Seattle flight tickets
American Airlines
28 Jan
DUB08:50Dublin
16h 05m
1 stop
SEA16:55Seattle/Tacoma Intl
7 Feb
SEA13:35Seattle/Tacoma Intl
17h 25m
1 stop
DUB15:00Dublin
€425
Find similar
American Airlines
18 Feb
DUB10:20Dublin
14h 35m
1 stop
SEA16:55Seattle/Tacoma Intl
27 Feb
SEA13:35Seattle/Tacoma Intl
12h 25m
1 stop
DUB10:00Dublin
€426
Find similar
American Airlines
2 Dec
DUB11:30Dublin
18h 40m
1 stop
SEA22:10Seattle/Tacoma Intl
7 Dec
SEA11:22Seattle/Tacoma Intl
16h 53m
2 stops
DUB12:15Dublin
€432
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momondo Fare Finder

 
Customise 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, momondo users made 13,528 searches. Data last updated 7 November 2025.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 18/2

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Sat 28/2

14:35-10:15

1 stop11h 40m

€403

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 19/11

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Wed 3/12

14:35-10:15

1 stop11h 40m

€404

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 21/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Fri 5/12

11:30-08:45

1 stop13h 15m

€422

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 21/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Fri 5/12

09:45-12:40

2 stops18h 55m

€423

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 28/1

08:50-16:55

1 stop16h 05m

Seattle/Tacoma Intl

Sat 7/2

13:35-15:00

1 stop17h 25m

€425

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 18/2

10:20-16:55

1 stop14h 35m

Seattle/Tacoma Intl

Fri 27/2

13:35-10:00

1 stop12h 25m

€426

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 21/11

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Fri 5/12

20:05-13:10

Nonstop9h 05m

€435

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 28/1

08:50-21:47

2 stops20h 57m

Seattle/Tacoma Intl

Sat 7/2

13:35-12:45

1 stop15h 10m

€437

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 13/3

16:30-19:20

Nonstop9h 50m

Seattle/Tacoma Intl

Sun 22/3

19:50-17:45

1 stop14h 55m

€488

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 2/12

11:30-22:10

1 stop18h 40m

Seattle/Tacoma Intl

Sat 6/12

00:31-07:10

1 stop22h 39m

€498

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Dublin to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Dublin and Seattle?

What is the cheapest month to fly to Seattle?

If you’re not able to fly to Seattle in February, then November is your next best option. Flight prices from Dublin to Seattle during November average around €549.

What is the cheapest day to depart on your flight to Seattle?

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €647. Flights from Dublin to Seattle on a Monday will generally be more expensive and average around €810. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Seattle?

Our data shows that the cheapest Dublin to Seattle flights are usually those with departure times in the morning. Our users have found flights to Seattle in the morning for as low as €577. Flights in the afternoon are often more expensive, with an average ticket price of €709.

What is the cheapest Dublin to Seattle/Tacoma Intl flight route?

Fly from Dublin to Seattle/Tacoma Intl for the best Dublin - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around €620 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Dublin for as low as €521 on momondo.

What cabin class options are available on Dublin to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on Dublin to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Dublin to Seattle flights?

You could potentially save up to 39% on your flight if you consider stops on a Dublin to Seattle flight.

How have Dublin to Seattle flight prices changed over time?

As of November 2025, prices for Dublin to Seattle flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to Seattle (DUB to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dublin to Seattle

Best price found

€499

Fastest flight time

9h 39m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Seattle

1 airport
The best flight deal from Dublin to Seattle found on momondo in the last 72 hours is €499
The fastest flight from Dublin to Seattle takes 9h 39m
Direct flights go from Dublin to Seattle on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Dublin to Seattle/Tacoma Intl by plane?

    There are 7271.7 km between Dublin and Seattle/Tacoma Intl. In terms of flight time, this usually takes a little over 9h 50m.

  • When did momondo last update prices for flights from Dublin Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Dublin Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Dublin Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Dublin Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Dublin Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Dublin to Seattle?

  • What is the most popular airline from Dublin to Seattle?

Best airlines flying from Dublin to Seattle

Compare and see reviews for airlines that fly from Dublin to Seattle with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom €424Free CancellationRating
7.1
572 reviews
Search Icelandair flights
Aer LingusPriceFrom €482Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
British AirwaysPriceFrom €509Free CancellationRating
6.7
7,500 reviews
Search British Airways flights

  • Aer Lingus Flights From Dublin to Seattle

    The lowest priced Aer Lingus flight from Dublin to Seattle from the last 72 hours was €482. Generally, Aer Lingus has 4 flights on this route every week with an average price of €666. Aer Lingus is rated 7.2/10 by our users.

  • British Airways Flights From Dublin to Seattle

    British Airways is also a popular choice for this route. British Airways flight deals for Dublin to Seattle start from as low as €509 round-trip, depending on your selected dates, with average British Airways deals seen on momondo around €810. British Airways operates 4 flights to Seattle from Dublin in an average week. Users have rated it 6.7/10 across 7,500 reviews.

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Aberdeen
Lynnwood

Why use momondo?

Why should I use momondo to find a flight deal from Dublin to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Seattle for you.

Can I find flights from Dublin to Seattle with flexible booking policies on momondo?

Flights from Dublin to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Dublin to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Dublin.

I’m not ready to book a flight from Dublin to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Dublin and alert you when they change.

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