SEA - DUB

C$ 414 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 17/2. 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
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
C$ 578
Overall average: C$ 937
Icelandair
Tue 14/4Wed 22/4
SEA - DUB • 1 stop
Cheapest direct flights
C$ 881
Typical prices: C$ 875-C$ 1,147
Aer Lingus
Wed 1/4Thu 30/4
SEA - DUB • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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$ 649 (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 29% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 28% 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
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

Tue, 14 Apr - Wed, 22 Apr
Icelandair Logo
3:40 p.m. - 11:05 a.m.
SEA
-
DUB
11h 25m1 stop
Icelandair Logo
12:15 p.m. - 5:55 p.m.
DUB
-
SEA
13h 40m1 stop
C$ 578Icelandair
Wed, 21 Jan - Tue, 27 Jan
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$ 585Icelandair
Mon, 20 Apr - Tue, 5 May
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m1 stop
Icelandair Logo
2:15 p.m. - 5:55 p.m.
DUB
-
SEA
11h 40m1 stop
C$ 587Icelandair
Fri, 8 May - Tue, 12 May
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m1 stop
Icelandair Logo
2:15 p.m. - 5:55 p.m.
DUB
-
SEA
11h 40m1 stop
C$ 596Icelandair
Fri, 1 May - Fri, 15 May
Icelandair Logo
7:00 p.m. - 11:05 a.m.
SEA
-
DUB
32h 05m1 stop
Icelandair Logo
12:15 p.m. - 5:55 p.m.
DUB
-
SEA
13h 40m1 stop
C$ 599Icelandair
Tue, 14 Apr - Mon, 20 Apr
Icelandair Logo
3:40 p.m. - 11:05 a.m.
SEA
-
DUB
11h 25m1 stop
Icelandair Logo
2:15 p.m. - 5:55 p.m.
DUB
-
SEA
11h 40m1 stop
C$ 631Icelandair
Fri, 23 Jan - Tue, 27 Jan
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$ 638Icelandair
Mon, 20 Apr - Wed, 6 May
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m1 stop
Icelandair Logo
12:15 p.m. - 8:40 p.m.
DUB
-
SEA
16h 25m1 stop
C$ 639Icelandair
Sat, 18 Apr - Thu, 23 Apr
Icelandair Logo
3:40 p.m. - 11:05 a.m.
SEA
-
DUB
11h 25m1 stop
Icelandair Logo
2:15 p.m. - 8:40 p.m.
DUB
-
SEA
14h 25m1 stop
C$ 648Icelandair
Mon, 11 May - Wed, 20 May
Icelandair Logo
3:40 p.m. - 1:15 p.m.
SEA
-
DUB
13h 35m1 stop
Icelandair Logo
12:15 p.m. - 5:55 p.m.
DUB
-
SEA
13h 40m1 stop
C$ 649Icelandair
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 November, 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$ 1,353 and C$ 1,088 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$ 973 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 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.
Airports
SEA

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

DUB

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

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$ 414
Best time to beat the crowds (17% 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$ 414 for a one-way ticket and C$ 585 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, KLM, American Airlines, Lufthansa, and United 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.

  • 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$ 916 or less one-way and C$ 965 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

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 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.
7.2
Aer LingusOverall score based on 1392 reviews
6.9Entertainment
6.6Food
8.0Crew
7.4Boarding
7.1Comfort
Airline reviews

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

6.0 GoodLisa, Dec 2025
BOS - DUB
Read more Aer Lingus reviews

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

It all went very well, except for the ramp coordination upon landing in Boston. That, however, was resolved in fairly short order.

NOTE. Aer Lingus does not accept American Express. I was denied boarding because I could not pay the fee for my oversized bag. I did not have another credit or debit card. Moreover, at CDG, I needed to check my bag at one location, go to another location to check my oversized bag and a THIRD location to pay for my oversized bag. Hence, once I was denied boarding, my bags were already en route to the plane. To retrieve them I needed to go to a FOURTH location in another part of the terminal. Last, Aer Lingus will not reimburse me for any portion of my ticket. I lost $1000 bc Aer Lingus doesn’t accept American Express at the CDG counter even though I paid for my ticket through the Kayak link with Amex. Kayak should remedy this situation if they want to continue to partner with Aer Lingus.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

It was poor overall. They cancelled our flight and changed it without notifying us. So we incurred extra costs by having to book a hotel for our layover. They say it's Kayak/Underpricer's responsibility to reimburse us. But Kayak/Underpricer have said it's Aer Lingus' responsibility because they are the ones with our 'booking information.' I find this situation confusing and unacceptable.

My experience with Aer Lingus was not too good. First, because of the last minute delayed flight from Amsterdam to Dublin we almost missed our flight from Dublin to Philadelphia. Secondly, the flight from Dublin to Philadelphia had very uncomfortable seats especially it was a very long flight. My buttocks were constantly in pain for sitting on these seats for this long. Lastly, the service in the plane was also slow. I asked for a second cup of water and the hostess told me he'll be right back with that where it took him over an hour to come back with water. It was warm in the plane and I was very thirsty. Overall this airline needs much improvement in their services.

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.

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

Information on your arrival and departure airports