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Cheap flights from Seattle to Dublin from C$ 376

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 28/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
8 Jul — 15 Jul1
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 8 June 2026.

Sun 1/112:50 p.m.
SEA
-
DUB
2 stops17h 40m
Lufthansa
Sat 7/1110:50 a.m.
DUB
-
SEA
1 stop34h 10m
Lufthansa
Deal found 4/6C$ 1,337
Fri 30/108:30 a.m.
SEA
-
DUB
2 stops18h 25m
United Airlines
Mon 9/119:00 a.m.
DUB
-
SEA
1 stop19h 54m
United Airlines
Deal found 8/6C$ 1,339
Tue 13/1010:30 a.m.
SEA
-
DUB
1 stop13h 15m
Lufthansa
Thu 29/105:10 a.m.
DUB
-
SEA
2 stops20h 49m
Lufthansa
Deal found 3/6C$ 1,341
Thu 17/911:55 p.m.
SEA
-
DUB
2 stops26h 05m
TAP AIR PORTUGAL
Sun 27/96:50 p.m.
DUB
-
SEA
2 stops35h 48m
TAP AIR PORTUGAL
Deal found 7/6C$ 1,342
Wed 29/78:00 a.m.
SEA
-
DUB
1 stop16h 15m
United Airlines
Thu 13/89:20 a.m.
DUB
-
SEA
1 stop19h 47m
United Airlines
Deal found 5/6C$ 1,345
Sat 10/1011:05 p.m.
SEA
-
DUB
2 stops27h 40m
Delta
Thu 22/1011:10 a.m.
DUB
-
SEA
1 stop13h 25m
Delta
Deal found 3/6C$ 1,346
Tue 7/77:00 p.m.
SEA
-
DUB
2 stops15h 20m
Multiple Airlines
Tue 28/72:15 p.m.
DUB
-
SEA
2 stops16h 49m
Multiple Airlines
Deal found 4/6C$ 1,348
Wed 14/106:50 p.m.
SEA
-
DUB
1 stop14h 05m
Lufthansa
Thu 29/105:10 a.m.
DUB
-
SEA
2 stops20h 49m
Lufthansa
Deal found 3/6C$ 1,351
Wed 14/106:50 p.m.
SEA
-
DUB
1 stop14h 05m
Lufthansa
Tue 27/1010:50 a.m.
DUB
-
SEA
2 stops20h 24m
Lufthansa
Deal found 3/6C$ 1,352
Thu 17/911:55 p.m.
SEA
-
DUB
2 stops26h 05m
TAP AIR PORTUGAL
Fri 2/105:30 a.m.
DUB
-
SEA
2 stops49h 08m
TAP AIR PORTUGAL
Deal found 7/6C$ 1,355
Wed 7/108:30 a.m.
SEA
-
DUB
2 stops18h 40m
United Airlines
Fri 30/1010:40 a.m.
DUB
-
SEA
2 stops17h 32m
United Airlines
Deal found 3/6C$ 1,358
Sun 26/711:20 p.m.
SEA
-
DUB
1 stop24h 00m
United Airlines
Tue 4/89:30 a.m.
DUB
-
SEA
1 stop18h 06m
United Airlines
Deal found 6/6C$ 1,359

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 8 June 2026.

Round-trip from

C$ 1,332

One-way from

C$ 376

Popular in

June

Cheapest in

February

Average price

C$ 1,383

Good round-trip deal

C$ 1,438 or less
JetBlue
  • JetBlue
  • 5/7-21/7
  • 2 total stops
  • 44h 50m total
  • Seattle to Dublin
Search Deals
28/7
  • 28/7
  • 2 total stops
  • 31h 05m total
  • Seattle to Dublin
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (C$ 349 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip 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 8 June 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

Cheapest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 30/10

6:50 a.m.-7:30 a.m.

1 stop17h 40m

Dublin

Sun 8/11

9:00 a.m.-9:17 a.m.

2 stops32h 17m

C$ 1,339
Quickest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 24/11

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

1 stop11h 40m

Dublin

Thu 26/11

11:30 a.m.-5:00 p.m.

1 stop13h 30m

C$ 1,384

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 25/7

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

1 stop11h 25m

Dublin

Tue 4/8

2:15 p.m.-11:04 p.m.

2 stops16h 49m

C$ 1,450

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 13/7

8:15 a.m.-10:40 a.m.

1 stop18h 25m

Dublin

Wed 29/7

9:50 a.m.-10:07 a.m.

1 stop32h 17m

C$ 1,455

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 13/7

9:05 a.m.-7:55 a.m.

1 stop14h 50m

Dublin

Wed 29/7

9:15 a.m.-5:27 p.m.

1 stop16h 12m

C$ 1,476

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 13/7

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

1 stop13h 35m

Dublin

Wed 29/7

12:15 p.m.-8:17 p.m.

2 stops40h 02m

C$ 1,479

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 20/7

11:45 a.m.-8:20 a.m.

1 stop12h 35m

Dublin

Mon 27/7

10:40 a.m.-10:54 p.m.

1 stop20h 14m

C$ 1,523

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 13/7

10:29 a.m.-9:45 a.m.

2 stops39h 16m

Dublin

Sun 26/7

9:50 a.m.-10:07 a.m.

1 stop32h 17m

C$ 1,540

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 15/11

12:00 p.m.-11:45 a.m.

2 stops39h 45m

Dublin

Thu 19/11

12:30 p.m.-10:26 p.m.

2 stops41h 56m

C$ 1,558

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 20/7

7:00 a.m.-10:40 a.m.

2 stops19h 40m

Dublin

Mon 27/7

9:50 a.m.-10:56 p.m.

2 stops21h 06m

C$ 1,569

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

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
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?

The best time to book flights from Seattle to Dublin is 25 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$ 643). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 1,316). 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?

Find hourly flight availability from Seattle to Dublin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 June 2026.

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?

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 8 June 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
7.3
Good
1,600 reviews
Check prices

Food

6.7

Comfort

7.2

Boarding

7.4

Overall

7.3

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Henry,May 2026

CDG - DUB

The staff was friendly and efficient. The cabin was well maintained. The economy seats were comfortable. The fact that the flight was not packed contributed largely to this impression. We would fly Aer Lingus again!
Aer Lingus
7.3
Good
1,600 reviews
Aer Lingus
7.3
Good
1,600 reviews
Check prices

Food

6.7

Comfort

7.2

Boarding

7.4

Overall

7.3

Entertainment

7.0

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Henry,May 2026

CDG - DUB

The staff was friendly and efficient. The cabin was well maintained. The economy seats were comfortable. The fact that the flight was not packed contributed largely to this impression. We would fly Aer Lingus again!

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.

  • 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 3 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. 9h 05m 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, 57 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 17h 40m. JetBlue provides one of the quickest options available for as low as C$ 1,337. 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$ 643. Aer Lingus is priced at 26% 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 (88%), Aer Lingus (88%), Iberia (88%).

  • What are the cheapest flights from Seattle to Dublin?

    Looking at all options, your cheapest flight can be booked for C$ 1,438. While the most popular route (Seattle/Tacoma Intl - Dublin) can be booked for C$ 1,075 on average, our data indicates C$ 1,679 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$ 643). Flying from Seattle to Dublin in June is currently the most expensive (average of C$ 1,316). 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

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 8 June 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 643AverageC$ 980FlexibilityNo 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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