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Cheap flights from Seattle to Dublin from C$ 490

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 9/1. 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 round-trip flights

Enter your travel dates to find the best prices.
Brussels Airlines Logo
10:55 a.m. - 8:10 a.m.SEA-DUB
13h 15m1 stop
Brussels Airlines Logo
10:40 a.m. - 7:03 p.m.DUB-SEA
16h 23m1 stop
C$ 634Brussels Airlines
Find Deal
Wed, 25 Feb - Fri, 6 Mar
United Airlines Logo
11:59 p.m. - 9:45 a.m.SEA-DUB
25h 46m1 stop
United Airlines Logo
9:20 a.m. - 9:21 a.m.DUB-SEA
32h 01m1 stop
C$ 641United Airlines
Find Deal
Sat, 18 Apr - Wed, 6 May
United Airlines Logo
10:58 a.m. - 8:10 a.m.SEA-DUB
13h 12m1 stop
United Airlines Logo
9:00 a.m. - 4:01 p.m.DUB-SEA
39h 01m2 stops
C$ 642United Airlines
Find Deal
Mon, 19 Jan - Wed, 28 Jan
United Airlines Logo
10:58 a.m. - 8:10 a.m.SEA-DUB
13h 12m1 stop
United Airlines Logo
9:00 a.m. - 6:26 p.m.DUB-SEA
41h 26m2 stops
C$ 643United Airlines
Find Deal
Mon, 19 Jan - Wed, 28 Jan
United Airlines Logo
8:59 a.m. - 9:55 a.m.SEA-DUB
17h 56m2 stops
United Airlines Logo
9:50 a.m. - 11:42 a.m.DUB-SEA
33h 52m2 stops
C$ 648United Airlines
Find Deal
Tue, 17 Mar - Tue, 14 Apr
United Airlines Logo
11:59 p.m. - 9:45 a.m.SEA-DUB
25h 46m1 stop
United Airlines Logo
9:50 a.m. - 11:15 a.m.DUB-SEA
33h 25m1 stop
C$ 649United Airlines
Find Deal
Sat, 18 Apr - Fri, 1 May
United Airlines Logo
7:00 a.m. - 9:55 a.m.SEA-DUB
18h 55m2 stops
United Airlines Logo
9:00 a.m. - 10:16 p.m.DUB-SEA
21h 16m1 stop
C$ 653United Airlines
Find Deal
Sun, 22 Feb - Wed, 4 Mar
United Airlines Logo
10:55 a.m. - 8:10 a.m.SEA-DUB
13h 15m1 stop
United Airlines Logo
9:00 a.m. - 10:16 p.m.DUB-SEA
21h 16m1 stop
C$ 655United Airlines
Find Deal
Sun, 22 Feb - Wed, 4 Mar
United Airlines Logo
7:00 a.m. - 7:30 a.m.SEA-DUB
16h 30m2 stops
United Airlines Logo
9:00 a.m. - 10:16 p.m.DUB-SEA
21h 16m1 stop
C$ 656United Airlines
Find Deal
Wed, 25 Feb - Wed, 4 Mar
Delta Logo
7:10 a.m. - 9:20 a.m.SEA-DUB
18h 10m2 stops
Delta Logo
5:55 a.m. - 11:35 a.m.DUB-SEA
13h 40m1 stop
C$ 657Delta
Find Deal
Wed, 25 Feb - Thu, 5 Mar

United Airlines flights from Seattle to Dublin

Our best United Airlines deals on Seattle to Dublin flight tickets
United Airlines
18 Apr
SEA11:59 p.m.Seattle/Tacoma Intl
25h 46m
1 stop
DUB9:45 a.m.Dublin
6 May
DUB9:20 a.m.Dublin
32h 01m
1 stop
SEA9:21 a.m.Seattle/Tacoma Intl
C$ 641
Find similar
United Airlines
19 Jan
SEA10:58 a.m.Seattle/Tacoma Intl
13h 12m
1 stop
DUB8:10 a.m.Dublin
28 Jan
DUB9:00 a.m.Dublin
39h 01m
2 stops
SEA4:01 p.m.Seattle/Tacoma Intl
C$ 642
Find similar
United Airlines
19 Jan
SEA10:58 a.m.Seattle/Tacoma Intl
13h 12m
1 stop
DUB8:10 a.m.Dublin
28 Jan
DUB9:00 a.m.Dublin
41h 26m
2 stops
SEA6:26 p.m.Seattle/Tacoma Intl
C$ 643
Find similar

Icelandair flights from Seattle to Dublin

Our best Icelandair deals on Seattle to Dublin flight tickets
Icelandair
4 Dec
SEA2:35 p.m.Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15 a.m.Dublin
9 Dec
DUB11:30 a.m.Dublin
13h 30m
1 stop
SEA5:00 p.m.Seattle/Tacoma Intl
C$ 604
Find similar
Icelandair
14 May
SEA3:45 p.m.Seattle/Tacoma Intl
11h 20m
1 stop
DUB11:05 a.m.Dublin
24 May
DUB12:15 p.m.Dublin
13h 45m
1 stop
SEA6:00 p.m.Seattle/Tacoma Intl
C$ 679
Find similar
Icelandair
3 Dec
SEA2:35 p.m.Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15 a.m.Dublin
9 Dec
DUB11:30 a.m.Dublin
13h 30m
1 stop
SEA5:00 p.m.Seattle/Tacoma Intl
C$ 804
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 26 November 2025.
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

Wed 25/2

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

1 stop13h 15m

Dublin

Fri 6/3

10:40 a.m.-7:03 p.m.

1 stop16h 23m

C$ 634

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 18/4

11:59 p.m.-9:45 a.m.

1 stop25h 46m

Dublin

Wed 6/5

9:20 a.m.-9:21 a.m.

1 stop32h 01m

C$ 641

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 19/1

10:58 a.m.-8:10 a.m.

1 stop13h 12m

Dublin

Wed 28/1

9:00 a.m.-4:01 p.m.

2 stops39h 01m

C$ 642

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 19/1

10:58 a.m.-8:10 a.m.

1 stop13h 12m

Dublin

Wed 28/1

9:00 a.m.-6:26 p.m.

2 stops41h 26m

C$ 643

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 17/3

8:59 a.m.-9:55 a.m.

2 stops17h 56m

Dublin

Tue 14/4

9:50 a.m.-11:42 a.m.

2 stops33h 52m

C$ 648

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 18/4

11:59 p.m.-9:45 a.m.

1 stop25h 46m

Dublin

Fri 1/5

9:50 a.m.-11:15 a.m.

1 stop33h 25m

C$ 649

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 22/2

7:00 a.m.-9:55 a.m.

2 stops18h 55m

Dublin

Wed 4/3

9:00 a.m.-10:16 p.m.

1 stop21h 16m

C$ 653

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 22/2

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

1 stop13h 15m

Dublin

Wed 4/3

9:00 a.m.-10:16 p.m.

1 stop21h 16m

C$ 655

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 25/2

7:00 a.m.-7:30 a.m.

2 stops16h 30m

Dublin

Wed 4/3

9:00 a.m.-10:16 p.m.

1 stop21h 16m

C$ 656

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 25/2

7:10 a.m.-9:20 a.m.

2 stops18h 10m

Dublin

Thu 5/3

5:55 a.m.-11:35 a.m.

1 stop13h 40m

C$ 657

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

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$ 734.

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$ 987. 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$ 1,439. 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 morning. momondo users have found flights departing from Seattle to Dublin in the morning for as low as C$ 747. 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$ 1,222.

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$ 927 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$ 820 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 November 2025, prices for Seattle to Dublin flights are approximately 41% 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$ 984

Fastest flight time

9h 05m

Direct flights

Mon, Tue, Thu, Fri and Sat

Airports in Dublin

1 airport
The best flight deal from Seattle to Dublin found on momondo in the last 72 hours is C$ 984
The fastest flight from Seattle to Dublin takes 9h 05m
Direct flights go from Seattle to Dublin on Monday, Tuesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.
There is 1 airport near Dublin: 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 11h 20m, 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$ 650Free CancellationRating
7.2
1,381 reviews
Search Aer Lingus flights

  • Aer Lingus Flights From Seattle to Dublin

    The lowest priced Aer Lingus flight from Seattle to Dublin from the last 72 hours was C$ 650. Generally, Aer Lingus has 3 flights on this route every week with an average price of C$ 1,014. Aer Lingus is rated 7.2/10 by our users.

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.

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