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Cheap flights from Seattle to Dublin from C$ 438

SEA — DUB
25 Nov — 2 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Dublin

Mon 30/112:35 p.m. -
1 stop11h 40m
Fri 11/1211:30 a.m. -
1 stop13h 30m
Deal found 21/10C$ 957
Fri 4/122:35 p.m. -
1 stop11h 40m
Thu 10/1211:30 a.m. -
1 stop13h 30m
Deal found 21/10C$ 1,027
Tue 29/122:35 p.m. -
1 stop11h 40m
Tue 12/111:30 a.m. -
1 stop13h 30m
Deal found 24/10C$ 1,034
Sun 27/122:35 p.m. -
1 stop11h 40m
Mon 11/111:30 a.m. -
1 stop13h 30m
Deal found 24/10C$ 1,048
Tue 8/127:00 a.m. -
1 stop17h 10m
Tue 15/129:00 a.m. -
2 stops39h 22m
Deal found 24/10C$ 1,064
Mon 30/112:30 p.m. -
1 stop33h 40m
Thu 10/129:00 a.m. -
2 stops36h 22m
Deal found 21/10C$ 1,066
Wed 2/126:45 p.m. -
1 stop16h 55m
Mon 7/128:40 p.m. -
1 stop28h 10m
Deal found 21/10C$ 1,067
Wed 9/129:18 a.m. -
2 stops15h 27m
Wed 16/126:00 a.m. -
1 stop17h 13m
Deal found 25/10C$ 1,071
Wed 2/129:18 a.m. -
2 stops15h 27m
Wed 9/125:45 a.m. -
1 stop14h 05m
Deal found 23/10C$ 1,074
Wed 2/125:05 a.m. -
2 stops18h 25m
Wed 9/125:10 a.m. -
1 stop14h 50m
Deal found 21/10C$ 1,078
Wed 2/128:25 a.m. -
1 stop15h 30m
Fri 11/125:45 a.m. -
1 stop14h 05m
Deal found 21/10C$ 1,081

Find flight deals from Seattle to Dublin

Round-trip from

C$ 912

One-way from

C$ 438

Popular in

June

Cheapest in

February

Average price

C$ 1,190

Good one-way deal

C$ 580 or less
Icelandair
  • Icelandair
  • 9/2-19/2
  • 2 total stops
  • 25h 10m total
  • Seattle to Dublin
Search Deals
23/11-31/12
  • 23/11-31/12
  • 3 total stops
  • 44h 40m total
  • Seattle to Dublin
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (C$ 278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 61 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Dublin.
Search Deals

Cheapflights Fare Finder

 
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

Cheapest round-trip

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Mon 23/11

2:35 p.m.-7:15 p.m.

3 stops44h 40m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 438

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sun 13/12

6:45 p.m.-9:55 a.m.

1 stop31h 10m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 644

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Wed 4/11

8:30 a.m.-10:20 a.m.

2 stops17h 50m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 664

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sat 12/12

11:15 p.m.-9:45 a.m.

2 stops26h 30m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 668
Quickest round-trip

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sun 6/12

10:48 a.m.-9:55 a.m.

2 stops15h 07m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 668

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Wed 9/12

6:15 a.m.-9:55 a.m.

3 stops19h 40m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 668

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Fri 1/1

5:00 a.m.-8:10 a.m.

2 stops19h 10m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 738

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Fri 11/12

6:15 a.m.-9:55 a.m.

3 stops19h 40m

Dublin

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 738

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sat 20/2

7:42 p.m.-8:10 a.m.

2 stops28h 28m

Dublin

Tue 9/3

9:00 a.m.-6:15 p.m.

2 stops41h 15m

C$ 979

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Wed 10/3

5:07 a.m.-10:20 a.m.

2 stops21h 13m

Dublin

Thu 18/3

8:00 a.m.-9:55 p.m.

2 stops20h 55m

C$ 992

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Seattle to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Dublin

How far ahead should I book a flight from Seattle to Dublin?

The best time to book flights from Seattle to Dublin is 12 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Dublin?

Currently, February is the cheapest month in which you can book a flight from Seattle to Dublin (average of C$ 721). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 1,580). 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 SEA to DUB?

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

How much does it cost to fly round-trip from Seattle to Dublin?

Airfare is typical for this route at the moment.

Seattle to Dublin flights typically cost between C$ 859 and C$ 1,331 in February.
The cheapest round-trip price found within the last 5 days was C$ 912 on Icelandair (9 Feb-19 Feb).

Reviews of airlines servicing Dublin

Check out reviews from past customers who have flown with Aer Lingus from Seattle to Dublin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,858 reviews
Check prices

Comfort

7.2

Boarding

7.5

Entertainment

7.1

Crew

8.1

Overall

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Aer Lingus
7.3
Good
1,858 reviews
Aer Lingus
7.3
Good
1,858 reviews
Check prices

Comfort

7.2

Boarding

7.5

Entertainment

7.1

Crew

8.1

Overall

7.3

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.

Related info for your journey

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 47 users have taken a look at flights from Seattle/Tacoma Intl to Dublin.

  • How long is the flight from Seattle to Dublin?

    A quick flight from Seattle to Dublin can take about 11h 40m. United Airlines provides one of the quickest options available for as low as C$ 1,027. Airlines will cover a distance of 7279 km. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Seattle to Dublin round-trip?

    Flying on Aer Lingus is currently your cheapest option to Dublin, with prices starting at C$ 685. Aer Lingus is priced at 38% lower than the current average price of a flight leaving 3 months from now.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Dublin on time: American Airlines (77%), Aer Lingus (77%), Iberia (77%).

  • What are the cheapest flights from Seattle to Dublin?

    Looking at all options, your cheapest flight can be booked for C$ 575. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for C$ 1,571 on average, our data indicates C$ 580 when flying from Seattle to Dublin.

  • Can I find deals for flights from Seattle to Dublin that include hotel bookings?

    Yes. In addition to deals on Seattle to Dublin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Dublin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Dublin.

  • Can I find deals for business class flights from Seattle to Dublin?

    Yes. Cheapflights offers flight deals from Seattle to Dublin 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 Seattle to Dublin?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Dublin (average of C$ 721). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 1,580). 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

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Swords
Athlone

Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Seattle to Dublin

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 685AverageC$ 1,082FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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When you search for this flight from Seattle to Dublin, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Certainly. Search results for flights to Dublin from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Yes, Cheapflights offers price alerts on Seattle to Dublin flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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