DUB - SEA

£329 Find Cheap Flights from Dublin to Seattle – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£451
Typical prices: £476-£708
Icelandair
Mon 12/11Mon 26/11
DUB - SEA • 1 stop
Cheapest one-way flight
£329
Typical prices: £466-£636
Delta
Thu 25/1
DUB - SEA • 1 stop
Direct flights
There are currently no direct flights between Dublin and Seattle. You'll need to take a connecting flight to reach the destination.
Insights
Insights
Avoid delays
Most punctual • 88% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 10 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Cheapest • Avg £468 (return)
Shortest trip • 13h 17m (one-way)
Insights
Insights
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We hope you enjoy your trip to Seattle!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Dublin to Seattle (DUB-SEA)

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

Recent return flight deals from Dublin to Seattle

Thu, 12 Nov - Thu, 26 Nov
Icelandair Logo
11:30 - 17:00DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 10:15SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
£451Icelandair
Thu, 12 Nov - Thu, 26 Nov
Icelandair Logo
11:30 - 17:00DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 10:15SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
£453Icelandair
Thu, 12 Nov - Thu, 26 Nov
Icelandair Logo
11:30 - 17:00DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 10:15SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
£455Icelandair
Fri, 12 Feb - Wed, 17 Feb
Icelandair Logo
11:30 - 17:00DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 10:15SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
£456Icelandair
Fri, 12 Feb - Wed, 17 Feb
Scandinavian Airlines Logo
19:05 - 20:50DUB  Dublin-SEA Seattle/Tacoma Intl
33h 45m2 stops Kastrup Copenhagen San Francisco
Scandinavian Airlines Logo
11:45 - 18:20SEA  Seattle/Tacoma Intl-DUB Dublin
22h 35m2 stops San Francisco Kastrup Copenhagen
£458Scandinavian Airlines
Tue, 8 Dec - Tue, 15 Dec
Scandinavian Airlines Logo
19:05 - 20:24DUB  Dublin-SEA Seattle/Tacoma Intl
33h 19m2 stops Kastrup Copenhagen San Francisco
Scandinavian Airlines Logo
12:31 - 11:45SEA  Seattle/Tacoma Intl-DUB Dublin
39h 14m2 stops Los Angeles Kastrup Copenhagen
£458Scandinavian Airlines
Fri, 12 Feb - Thu, 18 Feb
Icelandair Logo
11:30 - 17:00DUB  Dublin-SEA Seattle/Tacoma Intl
13h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:35 - 10:15SEA  Seattle/Tacoma Intl-DUB Dublin
11h 40m1 stop Reykjavik Keflavik Intl
£463Icelandair
Sun, 13 Dec - Mon, 28 Dec
Scandinavian Airlines Logo
10:10 - 22:02DUB  Dublin-SEA Seattle/Tacoma Intl
19h 52m2 stops Kastrup Copenhagen Los Angeles
Scandinavian Airlines Logo
07:15 - 18:20SEA  Seattle/Tacoma Intl-DUB Dublin
27h 05m2 stops Chicago O'Hare Intl Kastrup Copenhagen
£482Scandinavian Airlines
Thu, 12 Nov - Thu, 26 Nov
Scandinavian Airlines Logo
19:05 - 23:00DUB  Dublin-SEA Seattle/Tacoma Intl
35h 55m2 stops Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
07:27 - 18:20SEA  Seattle/Tacoma Intl-DUB Dublin
26h 53m2 stops Chicago O'Hare Intl Kastrup Copenhagen
£482Scandinavian Airlines
Thu, 1 Apr - Thu, 29 Apr
Aer Lingus Logo
16:45 - 23:52DUB  Dublin-SEA Seattle/Tacoma Intl
15h 07m1 stop Chicago O'Hare Intl
Aer Lingus Logo
19:10 - 12:15SEA  Seattle/Tacoma Intl-DUB Dublin
9h 05mdirect
£2,436Aer Lingus
Booking Insights

Price, demand, and travel trends for Dublin to Seattle 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 return flight from Dublin to Seattle?

Return flights from Dublin to Seattle typically range from £476 to £708. The lowest price found in the past 5 days was £451 on Icelandair.

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

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Dublin to Seattle. It's 6% cheaper than the average day, while Thursday is the most expensive, with prices 4% higher.

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

•April is the cheapest month to fly from Dublin to Seattle at £453 return.
•July (£785) and August (£760) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 73% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Dublin to Seattle the cheapest?

Flights from Dublin to Seattle are cheapest 10 weeks before departure. Booking in this window typically costs about 33% 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 Dublin to Seattle

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and 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, 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.

Marisa Garcia

Marisa Garcia

Expert on Aer Lingus

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Ramsey Qubein

Ramsey Qubein

Expert on DUB

An avid traveller 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.

Key details for Dublin to Seattle flights

Low season

October

Cheapest flight

£329
Beat the crowds with an average 42% drop in traveller numbers.
The most popular month to fly with an average 45% increase in traveller numbers.
One-way flight from Dublin to Seattle

When to book flights from Dublin to Seattle

Are your dates flexible? Find out the best times to travel from Dublin to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Dublin to Seattle 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 Dublin to Seattle?

    Three cabin classes are available on flights from Dublin to Seattle:

    • Economy class
    • Business Class
    • First Class

  • How long is a flight from Dublin to Seattle?

    A direct flight from Dublin to Seattle takes 00m, covering 4,523 miles.

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

    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 Dublin to Seattle flight?

    Return flights from Dublin to Seattle range from £476 to £708, with an average of £582 over the past 12 months. Anything below £476 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 15% above the £582 route average. Book 10 weeks before departure for the lowest fares.

  • How much can I save by having a stopover when flying from Dublin to Seattle?

    On this route, stopover flights are cheaper than direct options on average. Stopover fares average £468 return via Toronto Pearson Intl (YYZ), compared with £592 for direct.

  • How does on-time performance compare across airlines flying from Dublin to Seattle?

    Aer Lingus is the only airline operating Dublin to Seattle flights. 88% of its flights are on time.

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

    There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £20–£75 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 Dublin to Seattle?

    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.

  • Which airlines offer Wi-Fi on Dublin to Seattle flights?

    Iberia is the only airline on the Dublin to Seattle route offering in-flight Wi-Fi. Pricing depends on fare class.

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

    One-way fares from Dublin to Seattle are currently lower than usual. Average one-way flight prices are about £329, which is 39% below the typical average for this route.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car hire companies, with daily rates starting from around £3 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

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

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

  • What time of day has the fewest delays on flights from Dublin to Seattle?

    Afternoon flights have the fewest delays on this route.

  • At what point is a flight considered delayed on the route from Dublin to Seattle?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Dublin to Seattle route, 12% of flights were delayed in the past three months, with delays averaging 2h 43m.

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

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

    • London Heathrow (LHR) – 49% of one-stop connections
    • Reykjavik Keflavik Intl (KEF) – 36% of one-stop connections
    • Amsterdam Schiphol (AMS) – 6% of one-stop connections
    • Chicago O'Hare Intl (ORD) – 3% of one-stop connections

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

    Yes. Flexible dates can save you up to 10% on flights from Dublin to Seattle. Wednesday is the cheapest departure day at £551 return on average, while Thursday is the most expensive at £606, a difference of £55.

    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 stopover airport from Dublin to Seattle?

    Flying via Reykjavik Keflavik Intl (KEF) gives the shortest average 1-stop total travel time of 13h 17m, compared to 13h 28m via Amsterdam Schiphol (AMS) and 14h 23m via London Heathrow (LHR).

  • What is the time difference between Dublin and Seattle?

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

  • What popular places can I visit in Seattle?

    Some of the most popular sights in Seattle are The Westin Seattle, Seattle Center, and Seattle Marriott Waterfront. These are among the most viewed places in Seattle on KAYAK.

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

    Among airlines operating Dublin to Seattle flights:

    • Aer Lingus: offers free seat selection
    • American Airlines: offers free seat selection
    • Iberia: 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 Dublin to Seattle flights?

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

    • Aer Lingus: a cabin bag and a checked bag in Economy class
    • American Airlines: a cabin bag and a checked bag in Economy class
    • Iberia: a cabin 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.

  • Are there hotels at Seattle-Tacoma Airport (SEA)?

    There aren’t any accommodation options inside Seattle Airport but there are plenty of hotels nearby. At roughly 0.6 km away, the 3-star Hilton Seattle Airport and Conference Centre is closest. The 4-star Crowne Plaza Seattle Airport, the 3-star Radisson Hotel Seattle Airport, and the 2-star Clarion Hotel Seatac are all around 0.8 km away and all offer a shuttle service to and from Seattle Airport. Other nearby options include the Red Lion Hotel, the Seatac Inn, and the Seattle Airport Marriott. All three hotels are within about 1 km of Seattle Airport.

  • How do I get from Seattle Airport to Seattle city centre?

    Seattle Airport is around 25 km from Seattle city centre and is well connected by public and private transport routes. Three good options are train, shuttle bus (Airporter), or taxi. The train leaves from Seattle Airport approximately every 15min. The journey to central Seattle takes around 40min and a single ticket costs about $3 (€2.60). Several shuttle bus services (called Airporters) operate from Seattle Airport. Prices are around $24-60.50 (€20-50) (depending on group size and distance to accommodation) one-way and the journey to downtown Seattle takes around 20min. A taxi from Seattle Airport to Seattle city centre can cost between $50-75 (€42-63) depending on traffic. Journey times are around 20min.

Your guide to booking Dublin to Seattle 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 Wednesday departure and avoid flying on Thursday. On this route, Wednesday flights average £551, about £55 less than Thursday fares (9% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 10 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Dublin to Seattle trip for April. Fares historically average £453 return in that month – typically £332 less than the most expensive month, which is July (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Toronto Pearson Intl Airport (YYZ) can be cheaper than flying direct. The cheapest stopover option averages £468 return on this route – about £124 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 Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport
  • Seattle-Tacoma Airport (SEA) holds a huge selection of artworks. If you have time, you can visit the Art Walk, which is an 800 m stretch along the airport’s central terminal where contemporary artworks are displayed.
  • Several airline lounges at Seattle Airport allow passengers to pay for entrance. The Alaska Lounges charge around €42, the Centurion Lounge costs about €42, and the Club at SEA Lounges cost around €33 to enter.
  • A 24h children’s play area is available in Seattle Airport’s central terminal close to the A-gates. There, you will also find a quiet Mother’s Room with dimmed lighting, rocking chairs, and baby-care facilities.
  • You’ll find dedicated family lanes at the security area of Dublin Airport (DUB). The lanes are wider than normal to allow families with buggies/prams to pass through easily.

More options for your flight from Dublin to Seattle

Complete your trip to Seattle with a hotel stay or car hire