SEA - DUB

C$ 467 Find Cheap Flights from Seattle to Dublin – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 906
Typical prices: C$ 850-C$ 1,442
Icelandair
Thu 29/11Sat 15/12
SEA - DUB • 1 stop
Cheapest one-way flights
C$ 467
Typical prices: C$ 585-C$ 929
United Airlines
Tue 27/2
SEA - DUB • 2 stops
Direct flights
There are currently no direct flights between Seattle and Dublin. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 21 weeks in advance save around 35% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 33% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 699 (round-trip)
Shortest trip • 12h 54m (one-way)
Insights
Insights
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We hope you enjoy your trip to Dublin!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Seattle to Dublin (SEA-DUB)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Dublin

Sun, 29 Nov - Tue, 15 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 906Icelandair
Tue, 24 Nov - Wed, 2 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Sun, 22 Nov - Tue, 1 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Mon, 30 Nov - Fri, 11 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Mon, 30 Nov - Tue, 8 Dec
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Sun, 17 Jan - Wed, 3 Feb
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Mon, 16 Nov - Wed, 25 Nov
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Mon, 16 Nov - Tue, 24 Nov
Icelandair Logo
2:35 p.m. - 10:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:30 a.m. - 5:00 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
C$ 955Icelandair
Wed, 16 Dec - Tue, 29 Dec
Aer Lingus Logo
6:20 a.m. - 5:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
14h 55m1 stop Chicago O'Hare Intl
Aer Lingus Logo
3:50 p.m. - 11:42 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
15h 52m1 stop Chicago O'Hare Intl
C$ 1,659Aer Lingus
Wed, 16 Dec - Tue, 29 Dec
Aer Lingus Logo
6:20 a.m. - 5:15 a.m.SEA  Seattle/Tacoma Intl-DUB Dublin
14h 55m1 stop Chicago O'Hare Intl
Aer Lingus Logo
3:50 p.m. - 11:42 p.m.DUB  Dublin-SEA Seattle/Tacoma Intl
15h 52m1 stop Chicago O'Hare Intl
C$ 1,660Aer Lingus
Booking Insights

Price, demand, and travel trends for Seattle to Dublin flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

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

Round-trip flights from Seattle to Dublin typically range from C$ 850 to C$ 1,442. The lowest price found in the past 5 days was C$ 906, on Icelandair.

What's the cheapest day of the week to fly from Seattle to Dublin?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Seattle to Dublin. It's 8% cheaper than the average day, while Thursday is the most expensive, with prices 17% higher.

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

•February is the cheapest month to fly from Seattle to Dublin at C$ 724 round-trip.
•June (C$ 1,580) and December (C$ 1,338) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 118% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Dublin the cheapest?

Flights from Seattle to Dublin are cheapest 21 weeks before departure. Booking in this window typically costs about 35% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Seattle to Dublin

 
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.

Key details for Seattle to Dublin flights

Low season

January

Cheapest flight

C$ 467
Beat the crowds with an average 52% drop in traveller numbers.
The most popular month to fly with an average 39% increase in traveller numbers.
One-way 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

Your Seattle to Dublin flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Seattle to Dublin?

    Only Economy Class is available on flights from Seattle to Dublin.

  • How long does a flight from Seattle to Dublin take?

    A direct flight from Seattle to Dublin takes 00m, covering 11,714 km.

  • Do I need a passport to fly from Seattle to Dublin?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Seattle to Dublin flight?

    Round-trip flights from Seattle to Dublin range from C$ 850 to C$ 1,442, with an average of C$ 1,087 over the past 12 months. Anything below C$ 850 counts as a good deal.

  • How expensive are last-minute Seattle to Dublin flights?

    Last-minute fares on this route (booked within two weeks of departure) run 30% above the C$ 1,087 route average. Book 21 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Seattle to Dublin?

    On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 699 round-trip via Kastrup Copenhagen (CPH), compared to C$ 1,181 for direct.

  • What is the standard checked bag allowance on flights from Seattle to Dublin?

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 77–C$ 140 for the first checked bag in economy. Premium fares and elite status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Seattle to Dublin?

    The Airbus A330-200 family is used most often on this route, operated mainly by Aer Lingus and American Airlines. Other aircraft seen on the route include Airbus A330-300 variants.

  • How are flight prices from Seattle to Dublin looking right now?

    One-way fares from Seattle to Dublin are currently lower than usual. Average one-way flight prices are about C$ 535, which is 30% below the typical average for this route.

  • What car rental options are available at Dublin Airport (DUB)?

    Dublin Airport (DUB) hosts 5 major car rental companies, with daily rates averaging C$ 44 for economy cars. Top options include:

    • Budget
    • Sixt
    • Easirent
    • Europcar
    • Thrifty

  • Which airports can I use when flying from Seattle to Dublin?

    Flights from Seattle to Dublin usually depart from Seattle/Tacoma Intl (SEA) and arrive at Dublin (DUB).

  • Which airports do connecting flights from Seattle to Dublin pass through?

    One-stop flights from Seattle to Dublin most commonly connect through:

    • Reykjavik Keflavik Intl (KEF) – 57% of one-stop connections
    • London Heathrow (LHR) – 16% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 5% of one-stop connections
    • Istanbul (IST) – 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Seattle to Dublin?

    Yes. Flexible dates can save you up to 22% on flights from Seattle to Dublin. Monday is the cheapest departure day at C$ 1,004 round-trip on average, while Thursday is the most expensive at C$ 1,273, a difference of C$ 269.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport when travelling from Seattle to Dublin?

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time at 12h 54m, compared with 13h 24m via Amsterdam Schiphol (AMS) and 13h 27m via Reykjavik Keflavik Intl (KEF).

  • What is the time difference between Seattle and Dublin?

    Dublin is 7 hours ahead of Seattle (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • Which popular places can I visit in Dublin?

    Some of the most popular sights in Dublin are St. Stephen's Green, The Convention Centre Dublin, and RDS Arena. These are among the most viewed places in Dublin on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Seattle to Dublin flights?

    Among airlines operating Seattle to Dublin flights:

    • Aer Lingus: offers extra legroom; offers free seat selection
    • American Airlines: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Seattle to Dublin flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Aer Lingus: a carry-on bag and a checked bag in Economy Class
    • American Airlines: a carry-on bag and a checked bag in Economy Class
    • Iberia: a carry-on bag and a checked bag in Economy Class

    Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

Your guide to booking Seattle to Dublin flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Thursday. On this route, Monday flights average C$ 1,004, about C$ 269 less than Thursday fares (21% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 35% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Dublin trip for February. Fares historically average C$ 724 round-trip in that month – typically C$ 856 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Kastrup Copenhagen Airport (CPH) can be cheaper than flying direct. The cheapest layover option averages C$ 699 round-trip on this route – about C$ 482 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Dublin Airport.

    • Clayton Hotel Dublin Airport
    • Maldron Hotel Dublin Airport
    • Metro Hotel Dublin Airport

More options for your flight from Seattle to Dublin

Complete your trip to Dublin with a hotel stay or car rental