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Cheap flights from Seattle to Dublin from C$ 524

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 21/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
26 Feb — 5 Mar1
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
Explore the most affordable flight options available from Seattle to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 January 2026.

Mon 13/43:40 p.m.
SEA
-
DUB
1 stop13h 35m
Icelandair
Thu 23/42:15 p.m.
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 24/1C$ 622
Wed 29/43:40 p.m.
SEA
-
DUB
1 stop13h 35m
Icelandair
Thu 7/52:15 p.m.
DUB
-
SEA
1 stop11h 40m
Icelandair
Deal found 27/1C$ 627
Fri 1/57:00 p.m.
SEA
-
DUB
1 stop32h 05m
Icelandair
Mon 11/52:15 p.m.
DUB
-
SEA
1 stop14h 25m
Icelandair
Deal found 27/1C$ 631
Tue 28/43:40 p.m.
SEA
-
DUB
1 stop11h 25m
Icelandair
Fri 8/512:15 p.m.
DUB
-
SEA
1 stop13h 40m
Icelandair
Deal found 27/1C$ 633
Tue 5/53:40 p.m.
SEA
-
DUB
1 stop11h 25m
Icelandair
Sun 10/512:15 p.m.
DUB
-
SEA
1 stop13h 40m
Icelandair
Deal found 27/1C$ 637
Fri 1/57:00 p.m.
SEA
-
DUB
1 stop32h 05m
Icelandair
Fri 8/512:15 p.m.
DUB
-
SEA
1 stop13h 40m
Icelandair
Deal found 27/1C$ 642
Sat 2/53:40 p.m.
SEA
-
DUB
1 stop11h 25m
Icelandair
Fri 8/512:15 p.m.
DUB
-
SEA
1 stop13h 40m
Icelandair
Deal found 27/1C$ 644
Fri 1/57:00 p.m.
SEA
-
DUB
1 stop32h 05m
Icelandair
Thu 7/52:15 p.m.
DUB
-
SEA
1 stop11h 40m
Icelandair
Deal found 27/1C$ 646
Tue 18/85:40 a.m.
SEA
-
DUB
1 stop18h 05m
United Airlines
Tue 1/99:50 a.m.
DUB
-
SEA
3 stops43h 21m
United Airlines
Deal found 26/1C$ 648
Tue 28/411:59 p.m.
SEA
-
DUB
1 stop25h 46m
United Airlines
Wed 6/59:50 a.m.
DUB
-
SEA
1 stop31h 25m
United Airlines
Deal found 27/1C$ 650
Mon 4/53:00 p.m.
SEA
-
DUB
1 stop32h 45m
United Airlines
Tue 12/59:50 a.m.
DUB
-
SEA
2 stops33h 49m
United Airlines
Deal found 26/1C$ 653
Wed 25/212:43 p.m.
SEA
-
DUB
1 stop13h 12m
United Airlines
Wed 4/39:00 a.m.
DUB
-
SEA
2 stops41h 04m
United Airlines
Deal found 26/1C$ 655

Find flight deals from Seattle to Dublin

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Dublin (DUB). 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 27 January 2026.

Round-trip from

C$ 622

One-way from

C$ 524

Popular in

June

Cheapest in

November

Average price

C$ 759

Good one-way deal

C$ 685 or less
Icelandair
  • Icelandair
  • 13/4-23/4
  • 2 total stops
  • 28h 00m total
  • Seattle to Dublin
Search Deals
JetBlue
  • JetBlue
  • 21/7
  • 1 total stop
  • 12h 50m total
  • Seattle to Dublin
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 301 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Dublin.
Search Deals

Cheapflights 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, Cheapflights users made 629,999 searches. Data last updated 27 January 2026.
Use the filters below to find and compare flights from Seattle to Dublin that are best for you.

Fly from

Seattle

Fly to

Dublin

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 3/5

11:14 p.m.-10:40 a.m.

1 stop27h 26m

Dublin

Wed 13/5

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

1 stop31h 25m

C$ 650

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 25/2

12:43 p.m.-9:55 a.m.

1 stop13h 12m

Dublin

Wed 4/3

9:00 a.m.-6:04 p.m.

2 stops41h 04m

C$ 655

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 4/3

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

2 stops18h 55m

Dublin

Wed 11/3

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

2 stops42h 03m

C$ 660

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 6/5

8:00 a.m.-7:20 a.m.

1 stop15h 20m

Dublin

Wed 13/5

9:50 a.m.-2:20 p.m.

1 stop12h 30m

C$ 661

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 5/5

11:48 p.m.-7:20 a.m.

2 stops23h 32m

Dublin

Wed 13/5

9:50 a.m.-2:20 p.m.

1 stop12h 30m

C$ 661

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 5/5

9:55 a.m.-7:45 a.m.

1 stop13h 50m

Dublin

Tue 12/5

5:55 a.m.-12:20 p.m.

1 stop14h 25m

C$ 671

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 6/5

3:40 p.m.-1:15 p.m.

1 stop13h 35m

Dublin

Tue 12/5

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

1 stop14h 25m

C$ 678

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 2/5

3:40 p.m.-11:05 a.m.

1 stop11h 25m

Dublin

Wed 6/5

12:15 p.m.-8:40 p.m.

1 stop16h 25m

C$ 678

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 3/5

11:14 p.m.-10:40 a.m.

1 stop27h 26m

Dublin

Fri 15/5

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

1 stop31h 25m

C$ 678

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 2/5

3:40 p.m.-11:05 a.m.

1 stop11h 25m

Dublin

Tue 12/5

2:15 p.m.-5:55 p.m.

1 stop11h 40m

C$ 679

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Showing 1-10 of 19 results
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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
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 Seattle to Dublin

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Dublin. Price data was last updated on 23 January 2026.

The best time to book flights from Seattle to Dublin is 26 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, November is the cheapest month in which you can book a flight from Seattle to Dublin (average of C$ 422). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 898). 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.

Reviews of airlines servicing Dublin

Get insights into the airlines that provide service to Dublin. 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 Dublin. Reviews last updated 27 January 2026.
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
7.2
Good
1,442 reviews
Check prices

Food

6.6

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Overall

7.2

Crew

8.0

Reviews

1 / 20
4.0
Okay

Catherine,Dec 2025

AGP - DUB

Flight out to Malaga was terrific on A330 but flight back on A320 no where as good. Seat was uncomfortable, sweet wrappers & toilet paper on the floor at my seat. Rubbish in holder of seat in front. All unpleasant. Flight itself was fine & crew otherwise very good.
Aer Lingus
7.2
Good
1,442 reviews
Aer Lingus
7.2
Good
1,442 reviews
Check prices

Food

6.6

Boarding

7.4

Entertainment

6.9

Comfort

7.1

Overall

7.2

Crew

8.0

Reviews

1 / 20
4.0
Okay

Catherine,Dec 2025

AGP - DUB

Flight out to Malaga was terrific on A330 but flight back on A320 no where as good. Seat was uncomfortable, sweet wrappers & toilet paper on the floor at my seat. Rubbish in holder of seat in front. All unpleasant. Flight itself was fine & crew otherwise very good.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 24 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 27h 26m. United Airlines provides one of the quickest options available for as low as C$ 650. Airlines will cover a distance of 7279 km.

  • 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$ 631. Aer Lingus is priced at 28% 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 (61%), Aer Lingus (61%), British Airways (61%).

  • What are the cheapest flights from Seattle to Dublin?

    Looking at all options, your cheapest flight can be booked for C$ 510. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for C$ 745 on average, our data indicates C$ 695 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, November is the cheapest month in which you can book a flight from Seattle to Dublin (average of C$ 422). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 898). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Seattle to Dublin

Discover the top airline that operate flights from Seattle to Dublin. 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 629,999 searches. Data last updated 27 January 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 631AverageC$ 1,122FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Dublin?

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.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Dublin?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Dublin from Seattle.

Can Cheapflights find flights from Seattle to Dublin with no change fees?

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.

Can Cheapflights notify me if prices for flights from Seattle to Dublin become cheaper?

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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