SEA - DUB

C$ 663 Find Cheap Flights from Seattle to Dublin – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Dublin departing on 22/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 1,007
Typical prices: C$ 711-C$ 1,182
Icelandair
Sat 26/9Wed 7/10
SEA - DUB • 1 stop
Cheapest direct flights
C$ 1,346
Typical prices: C$ 748-C$ 1,341
Aer Lingus
Wed 16/9Wed 23/9
SEA - DUB • Direct
Top airlines
Cheapest • from C$ 1,007 (round-trip)
Best reviews • 7.3 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with Aer Lingus. Average duration is 9h 05m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg C$ 791 (round-trip)
Shortest trip • 12h 31m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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We hope you love your trip to Dublin!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Dublin (SEA-DUB)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Dublin that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Dublin

Sat, 26 Sep - Wed, 7 Oct
Icelandair Logo
3:40 p.m. - 11:05 a.m.
SEA
-
DUB
11h 25m
1 stop
Icelandair Logo
12:15 p.m. - 5:55 p.m.
DUB
-
SEA
13h 40m
1 stop
C$ 1,007Icelandair
Sat, 26 Sep - Tue, 6 Oct
Icelandair Logo
3:40 p.m. - 11:05 a.m.
SEA
-
DUB
11h 25m
1 stop
Icelandair Logo
2:15 p.m. - 5:55 p.m.
DUB
-
SEA
11h 40m
1 stop
C$ 1,007Icelandair
Mon, 9 Nov - Sat, 14 Nov
Icelandair Logo
2:35 p.m. - 10:15 a.m.
SEA
-
DUB
11h 40m
1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.
DUB
-
SEA
13h 30m
1 stop
C$ 1,011Icelandair
Mon, 19 Oct - Sun, 1 Nov
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.
DUB
-
SEA
13h 30m
1 stop
C$ 1,011Icelandair
Sun, 18 Oct - Sun, 1 Nov
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.
DUB
-
SEA
13h 30m
1 stop
C$ 1,011Icelandair
Sat, 12 Sep - Thu, 24 Sep
Icelandair Logo
11:25 p.m. - 1:15 p.m.
SEA
-
DUB
29h 50m
1 stop
Icelandair Logo
2:15 p.m. - 8:40 p.m.
DUB
-
SEA
14h 25m
1 stop
C$ 1,018Icelandair
Sat, 12 Sep - Tue, 22 Sep
Icelandair Logo
11:25 p.m. - 1:15 p.m.
SEA
-
DUB
29h 50m
1 stop
Icelandair Logo
2:15 p.m. - 8:40 p.m.
DUB
-
SEA
14h 25m
1 stop
C$ 1,018Icelandair
Sun, 6 Sep - Tue, 22 Sep
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m
1 stop
Icelandair Logo
2:15 p.m. - 8:40 p.m.
DUB
-
SEA
14h 25m
1 stop
C$ 1,022Icelandair
Wed, 16 Sep - Wed, 23 Sep
Aer Lingus Logo
7:10 p.m. - 12:20 p.m.
SEA
-
DUB
9h 10mdirect
Aer Lingus Logo
3:25 p.m. - 5:10 p.m.
DUB
-
SEA
9h 45mdirect
C$ 1,346Aer Lingus
Wed, 16 Sep - Tue, 22 Sep
Aer Lingus Logo
7:10 p.m. - 12:20 p.m.
SEA
-
DUB
9h 10mdirect
Aer Lingus Logo
3:25 p.m. - 5:10 p.m.
DUB
-
SEA
9h 45mdirect
C$ 1,674Aer Lingus
Booking Insights

KAYAK's insights & trends for Seattle to Dublin flights

Get data-powered insights and trends into flights from Seattle to Dublin to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Seattle to Dublin?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Dublin departing in September.

Flight prices are typical for this route right now.

Flights to Dublin from Seattle usually cost between C$ 820 and C$ 1,415 in September.
The lowest price found in the past 5 days was C$ 1,007 on Icelandair (26 Sep–7 Oct).

What is the cheapest month to fly from Seattle to Dublin?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Dublin, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Dublin is February, where tickets cost C$ 653 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is C$ 1,443 and C$ 1,241 respectively.

Can I save money by flying with a layover from Seattle to Dublin?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at C$ 990 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Dublin, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Dublin, you should book around 2 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Dublin

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low season

January

Cheapest flight

C$ 663
Best time to beat the crowds (26% less expensive on average)
Most popular time to fly (11% more expensive on average)
Flight from Seattle to Dublin

When to book flights from Seattle to Dublin

Are your dates flexible? Find out the best times to travel from Seattle to Dublin based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Dublin

  • What is the cheapest flight from Seattle to Dublin?

    In the last 5 days, the lowest price for a flight from Seattle to Dublin was C$ 663 for a one-way ticket and C$ 1,007 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Dublin?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Dublin flight route: Iberia, Virgin Atlantic, Delta, KLM, Lufthansa, Air Europa, United Airlines, and Scandinavian Airlines.

  • Which aircraft models fly most regularly from Seattle to Dublin?

    The Airbus A330-200 is the aircraft model that flies most regularly on the Seattle to Dublin flight route.

  • On which days can I fly direct from Seattle to Dublin?

    There are direct flights from Seattle to Dublin on a daily basis.

  • How does KAYAK find such low prices on flights from Seattle to Dublin?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Dublin.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Dublin?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Dublin from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Dublin?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Dublin with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Dublin?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Dublin from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Dublin

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 631 or less one-way.

Prefer to fly direct from Seattle to Dublin?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Dublin.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Dublin Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Dublin

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more nonstop flights

Direct returns

Dublin to Seattle/Tacoma Intl

Monday

Aer Lingus

Aer Lingus

Tuesday

Aer Lingus

Aer Lingus

Wednesday

Aer Lingus

Aer Lingus

Thursday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Saturday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more nonstop flights

Reviews of the top airline flying from Seattle to Dublin

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Dublin. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Dublin? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Aer LingusOverall score based on 1682 reviews
7.0Entertainment
8.1Crew
7.4Boarding
6.7Food
7.2Comfort
Airline reviews

I love flying with them, the long-haul was fantastic. The short flight from Dublin --> Switzerland was horrible though. Most narrow seats I ever had, first and only time in my life I couldn't even close the seatbelt in seat 1A which was very embarrassing so I had to sit in the middle, because that seatbeld was 20cm longer. No idea why seat 1A would have a much shorter belt, it's just ridicilous. Also I hate the fixed seats, way too narrow.

10.0 ExcellentNihad, Jul 2026
JFK - DUB
Read more Aer Lingus reviews

I love flying with them, the long-haul was fantastic. The short flight from Dublin --> Switzerland was horrible though. Most narrow seats I ever had, first and only time in my life I couldn't even close the seatbelt in seat 1A which was very embarrassing so I had to sit in the middle, because that seatbeld was 20cm longer. No idea why seat 1A would have a much shorter belt, it's just ridicilous. Also I hate the fixed seats, way too narrow.

Food was mediocre, but as expected in economy class on an airline. Wrap was ice cold , my son’s served by a steward on the next aisle was warm . As expected, but at least heat the food up a bit. No frills, but it’s economy. Excellent free WiFi was a bonus

I flew Aer Lingus Business class for the first time. Having flown economy a few times, I was familiar with the airline, and happy enough with economy. I’ve certainly been in nicer economy airlines before, but Aer Lingus is usually very reasonable, and I find the staff to be kind and have an Irish sense of humor and accommodation. The business experience was good, in that you got superior service to the back, lay down seats, better food and drinks, and more attentive service. However, the plane was a bit older, the WiFi was slow(not Starlink) and the pods were too close to one another for privacy, or function. When the Oder lady to the left of me fell asleep(fully reclined) there was no way for me to escape without having to wake her and put her seat all the way up. That lead to me being stuck with luggage I couldn’t put away in a cramped(for business) space, and no way to use the restroom for almost the whole 8 1/2 hour trip. I ended up trying to sleep with a large backpack blocking my feet. The food was good for plane food, but not great. The drinks were great, shame I couldn’t have had more, but I’d have peed myself. I love a window, but next time maybe an isle seat. Overall, the experience was good, not great, but an expensive good experience during which I got zero sleep. I’d do it again, but it’d have to be a deal.

The direct flight was a superb idea; please continue. The seats were less than comfortable for such a long flight.

The check in and boarding process was smooth, and the flight was fine.

We had a wonderful experience with Aer Lingus. The seats were too close for the long trip. The crew was absolutely perfect. They were so caring and thoughtful! My husband did not have a good experience with Air Lingus on the phone when trying to take care of getting better seating because he is disabled and needed a wheelchair prior to the day of our flight! Mariam R. in Boston was so helpful with seating and getting help for my husband. Filip Pytka who works for OCS was extremely helpful! He made sure that we had the lift because my husband could not climb the stairs to get onto the airplane. He took us from the gate all the way down to where we needed to be.

Aer Lingus doesn't have plug ins for devices at each seat. They also did not give me a dairy free meal as requested and confirmed by staff. It was as if I had not requested anything. Otherwise, they were great!

Pretty darn good. Food was typical airline food. Not anyone’s favorite.

The family sitting beside me had a one year old constantly crying and another kid kicking my chair. I understand it’s nothing the airlines could do or it’s fault

The seating area was small and uncomfortable. The person in front of me put her seat back and my area got even smaller!!

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

Information on your arrival and departure airports