SEA - DUB

C$ 509 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 12/12. 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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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

Thu, 27 Nov - Fri, 5 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB-SEA
13h 30m1 stop
C$ 562Icelandair
Find Deal
Thu, 26 Feb - Thu, 5 Mar
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB-SEA
13h 30m1 stop
C$ 565Icelandair
Find Deal
Wed, 3 Dec - Thu, 11 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA-DUB
11h 40m1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB-SEA
13h 30m1 stop
C$ 566Icelandair
Find Deal
Mon, 24 Nov - Fri, 5 Dec
Aer Lingus Logo
8:05 p.m. - 1:10 p.m.SEA-DUB
9h 05mdirect
Aer Lingus Logo
4:30 p.m. - 6:20 p.m.DUB-SEA
9h 50mdirect
C$ 584Aer Lingus
Find Deal
Mon, 5 Jan - Wed, 14 Jan
British Airways Logo
6:50 p.m. - 3:20 p.m.SEA-DUB
12h 30m1 stop
British Airways Logo
8:50 a.m. - 4:55 p.m.DUB-SEA
16h 05m1 stop
C$ 585British Airways
Find Deal
Mon, 29 Dec - Fri, 20 Feb
Delta Logo
12:55 a.m. - 7:45 a.m.SEA-DUB
22h 50m1 stop
Delta Logo
10:45 a.m. - 7:25 p.m.DUB-SEA
16h 40m1 stop
C$ 605Delta
Find Deal
Wed, 25 Feb - Wed, 4 Mar
Multiple Airlines Logo
8:25 a.m. - 9:20 a.m.SEA-DUB
16h 55m2 stops
Multiple Airlines Logo
10:45 a.m. - 7:25 p.m.DUB-SEA
16h 40m1 stop
C$ 612Multiple Airlines
Find Deal
Sat, 21 Feb - Fri, 6 Mar
Delta Logo
10:00 p.m. - 9:20 a.m.SEA-DUB
27h 20m1 stop
Delta Logo
11:30 a.m. - 10:05 p.m.DUB-SEA
18h 35m1 stop
C$ 613Delta
Find Deal
Wed, 4 Mar - Fri, 13 Mar
British Airways Logo
6:50 p.m. - 7:55 a.m.SEA-DUB
29h 05m1 stop
British Airways Logo
10:45 a.m. - 5:55 p.m.DUB-SEA
14h 10m1 stop
C$ 620British Airways
Find Deal
Tue, 11 Nov - Wed, 19 Nov
Multiple Airlines Logo
8:00 a.m. - 7:30 a.m.SEA-DUB
39h 30m2 stops
Multiple Airlines Logo
9:00 a.m. - 9:31 a.m.DUB-SEA
32h 31m2 stops
C$ 644Multiple Airlines
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Use SEA Spot Saver for faster security at Seattle.
Dublin's airport bus services offer scenic city access.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Icelandair
Cheapest • from C$ 562 (round-trip)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
3 weeks
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 23% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
4 days a week
There are direct flights from Seattle to Dublin 4 days a week: Mon, Wed, Fri, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest round-trip
C$ 562
Overall average: C$ 711
Icelandair
Thu 27/11Fri 5/12
SEA - DUB • 1 stop
Cheapest direct flights
C$ 584
Typical prices: C$ 620-C$ 975
Aer Lingus
Mon 24/11Fri 5/12
SEA - DUB • Direct
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!
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.

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 January, where tickets cost C$ 708 (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$ 1,367 and C$ 1,133 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$ 803 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 3 weeks before departure, which saves you about 32% 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

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SEA

Use the SEA Spot Saver for expedited security screening without a paid program. Book online or via the flySEA app.

Read more about SEAby Harriet Baskas
DUB

For a smooth arrival, use the airport bus services to reach Dublin city centre. They operate 24/7 with scenic views.

Read more about DUBby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on DUB

Ramsey Qubein

Ramsey Qubein

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.

Read more
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet Baskas

Harriet Baskas

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.

Read more

Good to know

Low seasonJanuary
Cheapest flightC$ 509
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly and prices are also 3% 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 3 days, the lowest price for a flight from Seattle to Dublin was C$ 509 for a one-way ticket and C$ 562 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: Air France, Delta, Virgin Atlantic, Lufthansa, United Airlines, KLM, and American 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?

    You can catch a direct flight from Seattle to Dublin on on Monday, Wednesday, Friday, and Sunday.

  • Which is the best airline for flights from Seattle to Dublin, Aer Lingus or Icelandair?

    The two airlines most popular with KAYAK users for flights from Seattle to Dublin are Aer Lingus and Icelandair. With an average price for the route of C$ 999 and an overall rating of 7.2, Aer Lingus is the most popular choice. Icelandair is also a great choice for the route, with an average price of C$ 859 and an overall rating of 7.1.

  • 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.

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

Wednesday

Aer Lingus

Aer Lingus

Friday

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

Wednesday

Aer Lingus

Aer Lingus

Friday

Aer Lingus

Aer Lingus

Sunday

Aer Lingus

Aer Lingus

See more nonstop flights

Reviews of the top airlines 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.
7.2
Aer LingusOverall score based on 1361 reviews
8.0Crew
7.1Comfort
6.6Food
7.4Boarding
6.9Entertainment
Airline reviews

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

8.0 ExcellentDaniel, Oct 2025BER - DUB
Read more Aer Lingus reviews

Staff was generally friendly and helpful. Attendants collecting trash were somewhat inattentive though.

This flight left about 45 minutes late, and arrived about 45 minutes late, which was enough to make us miss our next flight and trap us in Dublin for 24 hours!!

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Food was just okay. Was surprised initially when was charged for a cup of tea when they first came through cabin for beverages. I’ve had far better long distance flights ( take some tips from Swiss airlines)

The boarding process was not good. From check-in, there was only one desk for check-in, which made for a very long line. I asked to print out my boarding pass for the next leg of my trip, also via Aer Lingus, and they said they couldn't. I was unable to do this on the app or online, either. Many fellow passengers I spoke to had the same issue. Because the plane was delayed taking off by 90 minutes, everyone had to quickly go to a desk for their next boarding pass which was chaos. Overall it wasn't a smooth or happy experience.

UNDERPRISER IS A CRIMINAL ORGANIZATION. I WILL NEVER LET THEM MANAGE ANOTHER TRIP. THEY ESSENTIALLY WERE TRYING TO EXTORT ME FOR "Permission" FROM THEM not TO USE MY ROME TO DUBLIN FLIGHT. I did not use this flight, and despite many communications with both Aer Lingus and Underpricers, to the end, they insisted I could not do this, while Aer Lingus kept telling me there was no problem. And in fact, I had zero problems catching that second leg of the trip home from Dublin to LAX.. As if harrassment, underpricers sent me a rude and insensitve email insisting Aer Lingus would not honor the flight home to LAX from DUB. ON THE MORNING OF THE TRAVEL!!! KAYAK SHOULD NOT USE UNDERPRICER "services" They are dishonest and sadistic.

We left 2 1/2 hours late. It wasn't the airlines fault but they did nothing to help the situation. Even water had a price tag. The next flight was better.

They specifically asked about my flight from bordeaux to Dublin, which was fine. A little lacking but for a 1 and a half hour flight - it was more than enough. I transferred at Dublin and went to Newark. And wow that flight was incredible.

I liked that I went thru customs in Dublin instead of having to do that in LA.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

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

Information on your arrival and departure airports

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