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Cheap flights from Seattle to Dublin from C$ 455

SEA — DUB
11 Oct — 18 Oct1
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

Wed 16/912:05 p.m. -
1 stop15h 40m
Tue 22/93:25 p.m. -
Nonstop9h 45m
Deal found 9/9C$ 973
Fri 16/107:30 a.m. -
1 stop18h 15m
Mon 26/109:45 a.m. -
2 stops21h 51m
Deal found 9/9C$ 981
Wed 9/1211:55 a.m. -
1 stop12h 50m
Fri 18/1211:55 a.m. -
2 stops30h 54m
Deal found 8/9C$ 982
Sat 12/123:48 p.m. -
1 stop32h 57m
Tue 22/126:00 a.m. -
1 stop15h 50m
Deal found 8/9C$ 984
Fri 16/1011:14 p.m. -
2 stops24h 16m
Mon 26/1012:05 p.m. -
2 stops28h 42m
Deal found 10/9C$ 988
Wed 9/127:15 a.m. -
2 stops17h 30m
Mon 21/129:55 a.m. -
1 stop35h 55m
Deal found 8/9C$ 992
Thu 1/106:00 a.m. -
1 stop19h 15m
Sat 10/108:55 a.m. -
2 stops21h 10m
Deal found 9/9C$ 996
Fri 18/911:08 p.m. -
1 stop27h 37m
Sun 27/95:55 a.m. -
1 stop13h 52m
Deal found 9/9C$ 998
Sat 12/1211:37 p.m. -
1 stop24h 18m
Mon 21/129:55 a.m. -
1 stop35h 55m
Deal found 8/9C$ 1,002
Sat 26/93:40 p.m. -
1 stop11h 25m
Wed 7/1012:15 p.m. -
1 stop13h 40m
Deal found 8/9C$ 1,010
Fri 25/97:00 p.m. -
1 stop32h 05m
Tue 6/102:15 p.m. -
1 stop11h 40m
Deal found 8/9C$ 1,011

Find flight deals from Seattle to Dublin

Round-trip from

C$ 969

One-way from

C$ 455

Popular in

June

Cheapest in

February

Average price

C$ 1,210

Good one-way deal

C$ 409 or less
Air Canada
  • Air Canada
  • 9/1-18/1
  • 4 total stops
  • 49h 17m total
  • Seattle to Dublin
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United Airlines
  • United Airlines
  • 22/2-31/12
  • 2 total stops
  • 16h 27m total
  • Seattle to Dublin
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Highest demand for flights based on searches. 18% potential increase in price (C$ 315 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 63 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Dublin.
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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 22/2

1:16 p.m.-7:30 a.m.

3 stops34h 14m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 463

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sun 20/9

1:30 p.m.-7:35 p.m.

1 stop22h 05m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 636

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Tue 29/9

6:30 a.m.-11:10 a.m.

2 stops20h 40m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 652

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sat 7/11

10:56 p.m.-10:20 a.m.

2 stops27h 24m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 652

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sat 10/10

11:14 p.m.-7:30 a.m.

2 stops24h 16m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 652
Quickest round-trip

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Mon 12/10

8:25 a.m.-11:10 a.m.

2 stops18h 45m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 652

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Thu 29/10

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

3 stops18h 50m

Dublin

Wed 31/12

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

Nonstop0h 00m

C$ 721

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sat 9/1

5:55 p.m.-8:45 a.m.

2 stops30h 50m

Dublin

Wed 13/1

5:45 a.m.-11:50 a.m.

1 stop14h 05m

C$ 980

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Sat 9/1

5:55 p.m.-8:45 a.m.

2 stops30h 50m

Dublin

Fri 15/1

5:45 a.m.-11:50 a.m.

1 stop14h 05m

C$ 980

SeattleDublin

SEA Seattle/Tacoma Intl - DUB Dublin

SEADUB

Seattle/Tacoma Intl

Thu 8/10

6:00 a.m.-7:55 a.m.

1 stop17h 55m

Dublin

Mon 12/10

5:55 a.m.-4:45 p.m.

2 stops18h 50m

C$ 998

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/9

Showing 1-10 of 17 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 46 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$ 647). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 1,530). 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 below average for this route at the moment.

Seattle to Dublin flights typically cost between C$ 1,016 and C$ 1,449 in January.
The cheapest round-trip price found within the last 5 days was C$ 969 on Air Canada (9 Jan-18 Jan).

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
1,755 reviews
Check prices

Food

6.7

Comfort

7.2

Overall

7.3

Crew

8.1

Boarding

7.5

Entertainment

7.0

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
1,755 reviews
Aer Lingus
7.3
Good
1,755 reviews
Check prices

Food

6.7

Comfort

7.2

Overall

7.3

Crew

8.1

Boarding

7.5

Entertainment

7.0

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

  • What airports do I use to fly from Seattle to Dublin?

    If you wish to fly to Dublin from Seattle, then you need to book flights from Seattle/Tacoma Intl to Dublin. There are 4 flights from Seattle/Tacoma Intl (SEA) to Dublin (DUB) per day to choose from. Flights to Dublin from Seattle/Tacoma Intl are available from 1 airline, which means you should have some options if you want to compare airfare deals. 15h 30m is how long a nonstop flight from Seattle to Dublin typically takes.

  • How popular is this Seattle to Dublin flight route?

    Within the past month, 46 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 16h 30m. Delta provides one of the quickest options available for as low as C$ 1,011. 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$ 675. Aer Lingus is priced at 34% 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 (83%), Aer Lingus (83%), Iberia (83%).

  • What are the cheapest flights from Seattle to Dublin?

    Looking at all options, your cheapest flight can be booked for C$ 409. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for C$ 1,129 on average, our data indicates C$ 569 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$ 647). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 1,530). 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

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Top airline flying from Seattle to Dublin

AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 675AverageC$ 1,067FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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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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