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Cheap flights from Seattle to Dublin from C$ 388

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Dublin departing on 18/2. 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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Find the cheapest flights from Seattle to Dublin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Brussels Airlines Logo
7:00 a.m. - 8:10 a.m.
SEA
-
DUB
17h 10m1 stop
Brussels Airlines Logo
10:40 a.m. - 6:16 p.m.
DUB
-
SEA
15h 36m1 stop
C$ 647Brussels Airlines
Sun, 1 Feb - Tue, 10 Feb
Icelandair Logo
2:35 p.m. - 10:15 a.m.
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
2:15 p.m. - 8:40 p.m.
DUB
-
SEA
14h 25m1 stop
C$ 653Icelandair
Mon, 16 Feb - Thu, 30 Apr
Icelandair Logo
2:35 p.m. - 10:15 a.m.
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
11:30 a.m. - 6:00 p.m.
DUB
-
SEA
13h 30m1 stop
C$ 654Icelandair
Thu, 29 Jan - Tue, 17 Mar
United Airlines Logo
7:00 a.m. - 8:10 a.m.
SEA
-
DUB
17h 10m1 stop
United Airlines Logo
8:00 a.m. - 7:03 p.m.
DUB
-
SEA
42h 03m2 stops
C$ 658United Airlines
Sun, 1 Feb - Wed, 18 Mar
United Airlines Logo
12:25 p.m. - 9:55 a.m.
SEA
-
DUB
14h 30m1 stop
United Airlines Logo
9:50 a.m. - 6:00 p.m.
DUB
-
SEA
40h 10m2 stops
C$ 664United Airlines
Tue, 17 Mar - Tue, 31 Mar
United Airlines Logo
11:59 p.m. - 8:10 a.m.
SEA
-
DUB
24h 11m1 stop
United Airlines Logo
9:50 a.m. - 10:20 a.m.
DUB
-
SEA
32h 30m1 stop
C$ 665United Airlines
Sun, 15 Feb - Tue, 5 May
British Airways Logo
1:35 p.m. - 2:15 p.m.
SEA
-
DUB
16h 40m1 stop
British Airways Logo
8:15 p.m. - 11:35 a.m.
DUB
-
SEA
23h 20m1 stop
C$ 666British Airways
Sun, 31 May - Thu, 11 Jun
United Airlines Logo
10:55 a.m. - 8:10 a.m.
SEA
-
DUB
13h 15m1 stop
United Airlines Logo
8:00 a.m. - 10:16 p.m.
DUB
-
SEA
21h 16m1 stop
C$ 669United Airlines
Mon, 23 Feb - Wed, 11 Mar
United Airlines Logo
7:00 a.m. - 7:20 a.m.
SEA
-
DUB
16h 20m2 stops
United Airlines Logo
9:50 a.m. - 11:48 a.m.
DUB
-
SEA
33h 58m2 stops
C$ 670United Airlines
Wed, 8 Apr - Tue, 21 Apr
Icelandair Logo
2:35 p.m. - 10:15 a.m.
SEA
-
DUB
11h 40m1 stop
Icelandair Logo
11:30 a.m. - 6:00 p.m.
DUB
-
SEA
13h 30m1 stop
C$ 672Icelandair
Thu, 29 Jan - Mon, 16 Mar

British Airways flights from Seattle to Dublin

Our best British Airways deals on Seattle to Dublin flight tickets
British Airways
31 May
SEA1:35 p.m.Seattle/Tacoma Intl
16h 40m
1 stop
DUB2:15 p.m.Dublin
11 Jun
DUB8:15 p.m.Dublin
23h 20m
1 stop
SEA11:35 a.m.Seattle/Tacoma Intl
C$ 666
Find similar
British Airways
1 Feb
SEA6:50 p.m.Seattle/Tacoma Intl
32h 25m
1 stop
DUB11:15 a.m.Dublin
10 Feb
DUB5:25 p.m.Dublin
31h 30m
1 stop
SEA4:55 p.m.Seattle/Tacoma Intl
C$ 673
Find similar
British Airways
3 Feb
SEA1:25 p.m.Seattle/Tacoma Intl
22h 15m
1 stop
DUB7:40 p.m.Dublin
18 Mar
DUB8:50 a.m.Dublin
16h 05m
1 stop
SEA5:55 p.m.Seattle/Tacoma Intl
C$ 675
Find similar

Lufthansa flights from Seattle to Dublin

Our best Lufthansa deals on Seattle to Dublin flight tickets
Lufthansa
3 Feb
SEA7:00 a.m.Seattle/Tacoma Intl
26h 10m
2 stops
DUB5:10 p.m.Dublin
10 Feb
DUB5:00 a.m.Dublin
23h 57m
2 stops
SEA8:57 p.m.Seattle/Tacoma Intl
C$ 699
Find similar
Lufthansa
8 Apr
SEA8:00 a.m.Seattle/Tacoma Intl
18h 40m
1 stop
DUB10:40 a.m.Dublin
20 Apr
DUB12:25 p.m.Dublin
31h 55m
1 stop
SEA12:20 p.m.Seattle/Tacoma Intl
C$ 709
Find similar
Lufthansa
23 Feb
SEA9:55 a.m.Seattle/Tacoma Intl
17h 05m
2 stops
DUB11:00 a.m.Dublin
11 Mar
DUB5:10 a.m.Dublin
20h 53m
2 stops
SEA7:03 p.m.Seattle/Tacoma Intl
C$ 710
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Dublin 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 96,600 searches. Data last updated 6 January 2026.
Use the filters below to find and compare flights from Seattle to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 1/2

7:00 a.m.-8:10 a.m.

1 stop17h 10m

Dublin

Tue 10/2

10:40 a.m.-6:16 p.m.

1 stop15h 36m

C$ 647

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 16/2

2:35 p.m.-10:15 a.m.

1 stop11h 40m

Dublin

Thu 30/4

2:15 p.m.-8:40 p.m.

1 stop14h 25m

C$ 653

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 29/1

2:35 p.m.-10:15 a.m.

1 stop11h 40m

Dublin

Tue 17/3

11:30 a.m.-6:00 p.m.

1 stop13h 30m

C$ 654

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 1/2

7:00 a.m.-8:10 a.m.

1 stop17h 10m

Dublin

Wed 18/3

8:00 a.m.-7:03 p.m.

2 stops42h 03m

C$ 658

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/3

12:25 p.m.-9:55 a.m.

1 stop14h 30m

Dublin

Tue 31/3

9:50 a.m.-6:00 p.m.

2 stops40h 10m

C$ 664

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 15/2

11:59 p.m.-8:10 a.m.

1 stop24h 11m

Dublin

Tue 5/5

9:50 a.m.-10:20 a.m.

1 stop32h 30m

C$ 665

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 31/5

1:35 p.m.-2:15 p.m.

1 stop16h 40m

Dublin

Thu 11/6

8:15 p.m.-11:35 a.m.

1 stop23h 20m

C$ 666

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 23/2

10:55 a.m.-8:10 a.m.

1 stop13h 15m

Dublin

Wed 11/3

8:00 a.m.-10:16 p.m.

1 stop21h 16m

C$ 669

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 8/4

7:00 a.m.-7:20 a.m.

2 stops16h 20m

Dublin

Tue 21/4

9:50 a.m.-11:48 a.m.

2 stops33h 58m

C$ 670

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 29/1

2:35 p.m.-10:15 a.m.

1 stop11h 40m

Dublin

Mon 16/3

11:30 a.m.-6:00 p.m.

1 stop13h 30m

C$ 672

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Seattle to Dublin

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 cheapest month to fly to Dublin?

If you’re not able to fly to Dublin in November, then January is your next best option. Flight prices from Seattle to Dublin during January average around C$ 752.

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

On average, the least expensive day to fly to Dublin from Seattle is on a Sunday. momondo users have found tickets for Sunday departures for as low as C$ 963. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around C$ 1,404. These prices are subject to change though, so be sure to set up a Price Alert for flights to Dublin.

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

According to our data, the cheapest time of day to fly to Dublin is in the evening. momondo users have found flights departing from Seattle to Dublin in the evening for as low as C$ 999. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of C$ 1,128.

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

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

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

You are more likely to see cheaper flights to Dublin from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around C$ 888 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Seattle for as low as C$ 811 on momondo.

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

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

How have Seattle to Dublin flight prices changed over time?

As of January 2026, prices for Seattle to Dublin flights are approximately 17% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Dublin

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

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

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

Best price found

C$ 654

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Dublin

1 airport
The best one-way flight to Dublin from Seattle in the past 72 hours is C$ 654. The best round-trip flight deal from Seattle to Dublin found on momondo in the last 72 hours is C$ 968.
The fastest flight from Seattle to Dublin takes 9h 05m
Direct flights go from Seattle to Dublin every day.
There is 1 airport in Dublin. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

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

    A flight from Seattle/Tacoma Intl to Dublin will travel around 7271.7 km. Flights usually cover this in 9h 05m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Seattle/Tacoma Intl Airport to Dublin Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents required for your trip to Dublin Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Dublin Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Seattle to Dublin

Compare and see reviews for airlines that fly from Seattle to Dublin with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom C$ 635Free CancellationRating
7.2
1,425 reviews
Search Aer Lingus flights

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Kilkenny
Swords
Arklow
Bray
Maynooth
Portmarnock

Why use momondo?

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

Finding the right flight to Dublin from Seattle is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Dublin quick and easy, saving you time and money.

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

All flight searches from Seattle to Dublin on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Dublin.

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

Of course. momondo tracks the price of Seattle to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Dublin trip

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