SEA - DUB

C$ 376 Find Cheap Flights from Seattle to Dublin

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 28/7. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Dublin

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Dublin, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Dublin, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 1,330
Typical prices: C$ 922-C$ 530
Icelandair
Fri 20/11Wed 25/11
SEA - DUB • 1 stop
Cheapest direct flights
C$ 1,555
Typical prices: C$ 1,583-C$ 784
Aer Lingus
Thu 9/7Tue 21/7
SEA - DUB • Direct
Top airlines
Cheapest • from C$ 1,330 (round-trip)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
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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
+1
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg C$ 543 (round-trip)
Shortest trip • 12h 35m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% 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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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
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

Fri, 20 Nov - Wed, 25 Nov
Icelandair Logo
2:35 p.m. - 10:15 a.m.
SEA
-
DUB
11h 40m
1 stop
Icelandair Logo
11:30 a.m. - 8:40 p.m.
DUB
-
SEA
17h 10m
2 stops
C$ 1,330Icelandair
Sat, 17 Oct - Mon, 19 Oct
Turkish Airlines Logo
7:15 p.m. - 11:05 p.m.
SEA
-
DUB
19h 50m
1 stop
Turkish Airlines Logo
5:05 p.m. - 5:20 p.m.
DUB
-
SEA
32h 15m
1 stop
C$ 1,333Turkish Airlines
Sat, 12 Sep - Mon, 21 Sep
Turkish Airlines Logo
7:15 p.m. - 11:05 p.m.
SEA
-
DUB
19h 50m
1 stop
Turkish Airlines Logo
5:55 a.m. - 5:20 p.m.
DUB
-
SEA
19h 25m
1 stop
C$ 1,334Turkish Airlines
Fri, 23 Oct - Sun, 8 Nov
British Airways Logo
1:30 p.m. - 9:40 a.m.
SEA
-
DUB
12h 10m
1 stop
British Airways Logo
10:45 a.m. - 4:55 p.m.
DUB
-
SEA
14h 10m
1 stop
C$ 1,339British Airways
Fri, 30 Oct - Mon, 9 Nov
United Airlines Logo
8:30 a.m. - 9:55 a.m.
SEA
-
DUB
18h 25m
2 stops
United Airlines Logo
9:00 a.m. - 8:54 p.m.
DUB
-
SEA
19h 54m
1 stop
C$ 1,340United Airlines
Thu, 17 Sep - Sun, 27 Sep
TAP AIR PORTUGAL Logo
11:55 p.m. - 10:00 a.m.
SEA
-
DUB
26h 05m
2 stops
TAP AIR PORTUGAL Logo
6:50 p.m. - 10:38 p.m.
DUB
-
SEA
35h 48m
2 stops
C$ 1,343TAP AIR PORTUGAL
Fri, 6 Nov - Wed, 18 Nov
Lufthansa Logo
8:00 a.m. - 11:00 a.m.
SEA
-
DUB
19h 00m
2 stops
Lufthansa Logo
5:10 a.m. - 1:00 p.m.
DUB
-
SEA
15h 50m
2 stops
C$ 1,344Lufthansa
Thu, 23 Jul - Fri, 31 Jul
JetBlue Logo
11:45 a.m. - 8:20 a.m.
SEA
-
DUB
12h 35m
1 stop
JetBlue Logo
10:40 a.m. - 10:54 p.m.
DUB
-
SEA
20h 14m
1 stop
C$ 1,346JetBlue
Wed, 15 Jul - Wed, 22 Jul
JetBlue Logo
11:45 a.m. - 8:20 a.m.
SEA
-
DUB
12h 35m
1 stop
JetBlue Logo
10:40 a.m. - 10:54 p.m.
DUB
-
SEA
20h 14m
1 stop
C$ 1,347JetBlue
Tue, 7 Jul - Tue, 28 Jul
Multiple Airlines Logo
7:00 p.m. - 6:20 p.m.
SEA
-
DUB
15h 20m
2 stops
Multiple Airlines Logo
2:15 p.m. - 9:57 p.m.
DUB
-
SEA
15h 42m
2 stops
C$ 1,348Multiple Airlines
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 November.

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$ 639 (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$ 1,383 and C$ 1,051 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 1 stop layover the cheapest option at C$ 980 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 4 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 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 seasonJanuary
Cheapest flightC$ 376
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 1% lower 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$ 376 for a one-way ticket and C$ 1,330 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, Lufthansa, Air France, KLM, 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$ 1,439 or less round-trip.

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 1601 reviews
7.2Comfort
7.4Boarding
7.0Entertainment
6.7Food
8.1Crew
Airline reviews

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

6.0 GoodScott, Jun 2026
MAN - DUB
Read more Aer Lingus reviews

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

Flight delayed 45 minutes almost caused us to miss connection to transatlantic flight.

Vegetarian food options were pretty tasteless. Gob of rice with absolutely no protein, barely any vegetables, and poorly seasoned. Food was the major disappointment of an otherwise good flight experience. However, food is a differentiator on long haul flights.

We were an hour and a half late, which caused my rental car company to cancel my reservation. We had no car, had to take a taxi to our hotel, and then a taxi back to get a new car the next day. Sometimes lack of on-time performance can end up costing the passenger a lot of money, none of which is covered by the airline that operated the late flight.

Overall good experience. But seats were small and uncomfortable for the price. Good entertainment, staff friendly and attentive.

Flight was delayed no information given really . No food whatsoever on the plane . I think you should be able to put that on the app so people have a chance to buy food bring it with them . They said plane was very busy on way over but there should be enough for both flights as we pay full price for the service. No information or very slow on the app about the delays . Staff were lovely it’s not their fault so company not fare to passengers or staff .

Smooth quiet flight take off and landing both excellent. Food was mediocre. Boarding at gate was disorganized and unacceptable.

My only complaint is that during my 8-hour-long flight, the flight attendants came around with the coffee and tea cart twice instead of the alcoholic beverage cart. I would rather sleep on a plane than rush to the bathroom to take a dump. I asked the flight attendant if I could have a beer instead of coffee or tea. Unfortunately, she said the bar is closed. That tells me that she was too lazy to get me a beer on the plane. I was not happy about that.

Caring & friendly crew. Most important: got us SAFELY to our destination!

Friendly flight attendants, decent food if you can eat dairy.

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

Information on your arrival and departure airports