Cheap Flights from Seattle to Dublin

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Flight deals from Seattle to Dublin

Looking for a cheap last-minute deal or the best return flight from Seattle to Dublin? Find the lowest prices on one-way and return tickets right here.

Dublin.452 € per passenger.Departing Sun, 21 Sep, returning Tue, 30 Sep.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Sun, 21 Sep, arriving in Dublin.Inbound indirect flight with Scandinavian Airlines, departs from Dublin on Tue, 30 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 452 €, select.

Dublin.469 € per passenger.Departing Wed, 19 Nov, returning Wed, 26 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Wed, 19 Nov, arriving in Dublin.Inbound indirect flight with Icelandair, departs from Dublin on Wed, 26 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 469 €, select.

Dublin.499 € per passenger.Departing Sat, 6 Dec, returning Sat, 13 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sat, 6 Dec, arriving in Dublin.Inbound indirect flight with Icelandair, departs from Dublin on Sat, 13 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 499 €, select.

Dublin.499 € per passenger.Departing Wed, 26 Nov, returning Wed, 3 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Wed, 26 Nov, arriving in Dublin.Inbound indirect flight with Icelandair, departs from Dublin on Wed, 3 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 499 €, select.

Dublin.502 € per passenger.Departing Sun, 15 Feb, returning Wed, 25 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sun, 15 Feb, arriving in Dublin.Inbound indirect flight with Icelandair, departs from Dublin on Wed, 25 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 502 €, select.

Dublin.502 € per passenger.Departing Sun, 1 Jun, returning Sun, 22 Jun.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Sun, 1 Jun, arriving in Dublin.Inbound indirect flight with Scandinavian Airlines, departs from Dublin on Sun, 22 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 502 €, select.

Dublin.504 € per passenger.Departing Tue, 28 Oct, returning Tue, 4 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Tue, 28 Oct, arriving in Dublin.Inbound indirect flight with Icelandair, departs from Dublin on Tue, 4 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 504 €, select.

Dublin.513 € per passenger.Departing Sun, 4 May, returning Sun, 11 May.Return flight with Spirit Airlines and WestJet.Outbound indirect flight with Spirit Airlines, departs from Seattle / Tacoma International on Sun, 4 May, arriving in Dublin.Inbound indirect flight with WestJet, departs from Dublin on Sun, 11 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 513 €, select.

Find the cheapest month to fly from Seattle to Dublin

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Dublin flights are currently cheapest in September.

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Direct flights from Seattle to Dublin

Seattle to Dublin: Alternative routes

Compare routes from Seattle to Dublin below. You may find an airport to fly into that's cheaper, faster, or easier than Dublin.

Seattle to Dublin: Flight information

The things to know before you go.

Cheapest flight found	452 €
Cheapest month to fly	September
Average flight time	9 hrs, 5 mins
Most popular airline	American Airlines
Average flights per week	19

Finding cheap flights from Seattle to Dublin: Frequently asked questions

How much are return flights from Seattle to Dublin?

The best price we found for a return flight from Seattle to Dublin is 452 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seattle to Dublin?

9 hours and 5 minutes is the average flight time from Seattle to Dublin.

Which airlines fly direct from Seattle to Dublin?

American Airlines, Aer Lingus and British Airways fly direct from Seattle to Dublin.

How many flights are there a week from Seattle to Dublin?

As of March 2025, there are 20 flights per week flying from Seattle to Dublin.

When is the cheapest time to fly from Seattle to Dublin?

The cheapest month to fly from Seattle to Dublin is usually March 2025.

Which upcoming date is cheapest to fly from Seattle to Dublin Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Dublin Airport on Sunday, 21 September 2025.

Can I get a direct flight from Seattle to Dublin Airport?

Yes – the average flight time is 9 hours and 5 minutes.

How can I find the best flight deal to Dublin?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Dublin but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Dublin?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Dublin is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Seattle to Dublin Airport (DUB): what you need to know

Seattle is home to a couple of airports where you can start your adventure. Explore your options for booking a flight from Seattle to Dublin Airport (DUB) leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base (LKE).
9 hours 7 minutes is the average duration of a direct flight from Seattle to Dublin Airport.
Dublin is 7 hours ahead of Seattle. Dublin Airport is located in Dublin, which operates on the UTC+0 timezone.
With 6 direct flights a week between the two airports, Seattle-Tacoma International Airport (SEA) to Dublin Airport (DUB) is the most popular route. Aer Lingus operates the earliest flight at 18:45. If you prefer to get more out of your day before flying, the last departure from SEA to DUB is with Aer Lingus at 21:00.
Your flight from Seattle to DUB won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.
Peak months like July or high seasons such as summer and spring break will mean longer queues at check-in and security. Be on the safe side and head to the airport even earlier. Arriving two hours before domestic flights and up four hours ahead of international flights is a smart move.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) is a convenient option for travelling directly to your destination. Nonstop flights from Seattle to Dublin Airport (DUB) depart from this terminal.
When jetting out of SEA, you can catch a direct flight from Seattle to Dublin Airport with Aer Lingus.
A stopover is the ideal opportunity to take a travel break — and possibly even explore a different city. When browsing flights from Seattle to DUB leaving from Seattle-Tacoma International Airport (SEA), deselect the 'Direct flights only' box to see where you can visit along the way. Here are some popular options to consider:
- Vancouver International Airport (YVR)
- London Heathrow Airport (LHR)
- Keflavik International Airport (KEF)
The distance from central Seattle to SEA is roughly 23 kilometres. Use travel apps like Google Maps for the fastest way to get there, whether you're driving or taking public transport.
After a hassle-free start to your travels? Stay near Seattle-Tacoma International Airport. Whether you're taking an early flight from Seattle to Dublin Airport or want to avoid feeling rushed, these hotels are perfect:

Lake Union Sea Plane Base (LKE)

Prefer to leave from Lake Union Sea Plane Base (LKE)? You can book a direct flight from Seattle to Dublin Airport (DUB) out of this popular hub.
Aer Lingus offers direct flights from Seattle to DUB departing from LKE. Book your preferred window (or aisle) seat and reach your destination in one go.
Break up your flight from Seattle to Dublin Airport with a stop so you can freshen up or tick a new place off your list. Some great stopovers between Lake Union Sea Plane Base and DUB are:
- Vancouver International Airport (YVR)
- London Heathrow Airport (LHR)
- Amsterdam Airport Schiphol Airport (AMS)
With public transport, you can travel from central Seattle to LKE in about 23 minutes. The terminal is roughly 3 kilometres away, and getting there by car will take approximately 11 minutes.
You're off on holiday, so why not extend it with an extra night away from home? Consider kicking back in one of these hotels near Lake Union Sea Plane Base the day before your flight from Seattle to DUB:

About Dublin Airport (DUB)

If you're coming in on a late flight from Seattle to Dublin Airport, few things beat the convenience of staying near the terminal. Collect your bags from the carousel and then be showered and snoozing soon after at one of these hotels near DUB:

Getting from Dublin Airport (DUB) to central Dublin

Dublin Airport is approximately 21 kilometres from the centre of Dublin. With a car rental or if you're catching a cab, the drive is around 29 minutes.
Travelling to the centre by public transport will take you around 2 hours and 9 minutes.

How to find the cheapest flights from Seattle to Dublin Airport (DUB)

Lock in a one-way ticket from Seattle to Dublin Airport from 209 € or travel return from just 452 €. The prices shown are based on availability and could change when you book.
11 months is how far you'll want to book ahead to score cheap tickets from Seattle to DUB.
The cheapest month for tickets from Seattle to Dublin Airport is August. Use the 'Whole month' search feature to find the most affordable day to fly if you're flexible with your departure dates.
Log into your online account or use the app to set up a Price Alert. You'll be notified straight away if the price has dropped. It's simple to do, and it'll save you from searching for a cheap ticket from Seattle to DUB every day.
Use the filters to tailor your flights from Seattle to Dublin Airport. Select your ideal arrival and departure times, number of stops and airlines. You can also sort your results by 'Cheapest' to find the best deals.

The best time to fly from Seattle to Dublin Airport (DUB)

It's time to work out your dates for your flight from Seattle to Dublin Airport. August is the most popular month to visit Dublin. If you want a more relaxed vibe, go in February.
The warmest month in Dublin is July, with the temperature ranging between 10ºC and 20ºC. Lock in your flights from Seattle to DUB in this month if you enjoy this type of weather.
January sees average temperatures of between 1ºC and 9ºC. Search for cheap flights from Seattle to Dublin Airport around that time if you want to travel in cooler conditions.

More about Dublin

After booking your flight from Seattle to Dublin Airport, think about where to rest your head in this city. Make one of these options your base for exploring Dublin:
There are so many things to see and do in this city it can be hard to figure out where to begin. Guinness Storehouse, Trinity College Library and Dublin Castle are leading attractions which should be on every Dublin itinerary.

Complete your Dublin trip with a car rental

Finding you a cheap flight from Seattle to Dublin Airport isn't the only thing we're good at. Check out our car rentals in Dublin and have more freedom to explore. We find deals from trusted car rental providers and put them all in one place. Instantly compare rates and then book with no fees.