SEA - DUB

C$ 451 Find Cheap Flights from Seattle to Dublin

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Dublin departing on 11/8. 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

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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Flights 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

Mon, 11 Aug - Thu, 21 Aug
United Airlines Logo
7:20 a.m. - 7:45 a.m.SEA-DUB
16h 25m1 stop
United Airlines Logo
9:20 a.m. - 11:31 a.m.DUB-SEA
34h 11m2 stops
C$ 451United Airlines
Find Deal
Tue, 2 Dec - Wed, 10 Dec
United Airlines Logo
8:15 a.m. - 7:10 a.m.SEA-DUB
14h 55m1 stop
United Airlines Logo
9:00 a.m. - 1:47 p.m.DUB-SEA
36h 47m2 stops
C$ 464United Airlines
Find Deal
Sun, 26 Oct - Wed, 5 Nov
Delta Logo
9:55 p.m. - 8:45 a.m.SEA-DUB
27h 50m1 stop
Delta Logo
10:45 a.m. - 7:29 p.m.DUB-SEA
16h 44m1 stop
C$ 506Delta
Find Deal
Mon, 24 Nov - Tue, 9 Dec
Delta Logo
10:00 p.m. - 9:20 a.m.SEA-DUB
27h 20m1 stop
Delta Logo
10:45 a.m. - 10:23 p.m.DUB-SEA
19h 38m2 stops
C$ 512Delta
Find Deal
Sat, 25 Oct - Wed, 5 Nov
Icelandair Logo
3:50 p.m. - 11:05 a.m.SEA-DUB
11h 15m1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB-SEA
13h 30m1 stop
C$ 523Icelandair
Find Deal
Fri, 17 Oct - Mon, 3 Nov
Icelandair Logo
7:00 p.m. - 11:05 a.m.SEA-DUB
32h 05m1 stop
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB-SEA
13h 30m1 stop
C$ 525Icelandair
Find Deal
Wed, 26 Nov - Tue, 9 Dec
Lufthansa Logo
3:10 p.m. - 5:10 p.m.SEA-DUB
18h 00m1 stop
Lufthansa Logo
10:50 a.m. - 1:20 p.m.DUB-SEA
34h 30m1 stop
C$ 539Lufthansa
Find Deal
Tue, 12 Aug - Thu, 21 Aug
 Logo
1:55 p.m. - 12:35 p.m.SEA-DUB
14h 40m1 stop
 Logo
3:00 p.m. - 10:25 p.m.DUB-SEA
15h 25m1 stop
C$ 542
Find Deal
Mon, 20 Oct - Fri, 7 Nov
Lufthansa Logo
2:55 p.m. - 7:45 a.m.SEA-DUB
32h 50m1 stop
Lufthansa Logo
5:10 a.m. - 12:10 p.m.DUB-SEA
15h 00m1 stop
C$ 562Lufthansa
Find Deal
Mon, 1 Dec - Sun, 14 Dec
 Logo
11:20 p.m. - 8:40 a.m.SEA-DUB
25h 20m1 stop
 Logo
12:55 p.m. - 9:15 p.m.DUB-SEA
16h 20m1 stop
C$ 575
Find Deal
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
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$ 599 (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$ 1,349 and C$ 1,136 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$ 485 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 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.


Good to know

Low seasonJanuary
Cheapest flightC$ 451
Best time to beat the crowds (35% less expensive on average)
Most popular time to fly and prices are also 0% 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$ 362 for a one-way ticket and C$ 329 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, United Airlines, Lufthansa, and KLM.

  • 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.

  • Which airline alliances offer flights from Seattle to Dublin?

    oneworld is the only airline alliance operating flights between Seattle and Dublin.

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

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

  • 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$ 968 and an overall rating of 7.1, Aer Lingus is the most popular choice. Icelandair is also a great choice for the route, with an average price of C$ 843 and an overall rating of 7.0.

  • 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$ 1,079 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,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Tuesday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Wednesday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Thursday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Friday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Saturday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Sunday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

See more nonstop flights

Direct returns

Dublin to Seattle/Tacoma Intl

Monday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Tuesday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Wednesday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Thursday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Friday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Saturday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

Sunday

Aer Lingus,American Airlines,British Airways

Aer Lingus,American Airlines, +1 more

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.
7.1
Aer LingusOverall score based on 1190 reviews
7.1Comfort
7.3Boarding
8.0Crew
6.8Entertainment
6.4Food
Airline reviews

We booked a flight from FCO(Rome) with a stop over at DUB(Dublin) going to JFK. Boarding from Rome was kind of chaotic since the airport I guess is very small and we needed to shuttle to the airplane. The gate agent just let everyone and anyone go without using the sections so that took a lot longer than usual boarding. From drinking to JFk boarding was good and organized. Amazingly the flights was very smooth sailing and we’ve flown American big airplane to small companies before. The aircraft’s itself is on the older side, can’t complain tho because the plane ride wa smooth. For a 3 hour plane ride, nothing was complimentary. But for the longer leg of the plane complimentary snacks, meals and drinks were provided which was great. The food wasn’t bad either. I would fly with them again, great price and good service.

8.0 ExcellentGene, Jul 2025FCO - DUB
Read more Aer Lingus reviews

We booked a flight from FCO(Rome) with a stop over at DUB(Dublin) going to JFK. Boarding from Rome was kind of chaotic since the airport I guess is very small and we needed to shuttle to the airplane. The gate agent just let everyone and anyone go without using the sections so that took a lot longer than usual boarding. From drinking to JFk boarding was good and organized. Amazingly the flights was very smooth sailing and we’ve flown American big airplane to small companies before. The aircraft’s itself is on the older side, can’t complain tho because the plane ride wa smooth. For a 3 hour plane ride, nothing was complimentary. But for the longer leg of the plane complimentary snacks, meals and drinks were provided which was great. The food wasn’t bad either. I would fly with them again, great price and good service.

Comfortable trip , flight attendants professional as always. Only complaint was the food, We fly Aer Lingus frequently, this was the first time the quality of the meal was poor.

Everything went well. I made my connection which is always a concern.

I appteciate the very courteous staff. The flight was good. Something that wasn't good was that my bag was only checked as far as Dublin and I had a connecting flight to Vienna. (That was a mistake the ORD desk made.) Fortunately the desk at DUB was able to re-tag without me having to re-check in (which initially it seemed I might have to do.)

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

When I booked the flight, I wasn't aware that this was a "no frills" flight. No wifi, no reclining seat, no complimentary soft drinks.

Charging for coffee on a business class fare??? And to not even mention it? Inexcusable. Boarding and disembarking was pathetic. Could not use a jetway on either end. Had to use stairs and walk across tarmac at origination and use stairs and be bussed to terminal at destination.

It was excellent! The plane left Chicago early. Arrived in Dublin early. The crew was excellent! It was a great experience.

The Nice airport was a horrible boarding experience. I have never experienced the kind of compressed mob (in the B12-B17 gate area) of people all unclear what was happening and no airport staff to assist. There was no signage and 1000’s of people waiting for any info for 2 hours.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

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

Information on your arrival and departure airports

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