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Cheap flights from Dublin to Seattle

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Compare Dublin to Seattle flight deals

Find the cheapest month or even day of the year to fly to Seattle

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Flight deals from Dublin to Seattle

Looking for a cheap last-minute deal or the best round-trip flight from Dublin to Seattle? Find the lowest prices on one-way and round-trip tickets right here.
Seattle.C$549 per passenger.Departing Tue, May 27, returning Mon, Jun 2.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Dublin on Tue, May 27, arriving in Seattle / Tacoma International.Inbound indirect flight with Scandinavian Airlines, departing from Seattle / Tacoma International on Mon, Jun 2, arriving in Dublin.Price includes taxes and charges.From C$549, select.
Seattle.C$552 per passenger.Departing Thu, Sep 11, returning Sun, Sep 21.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Dublin on Thu, Sep 11, arriving in Seattle / Tacoma International.Inbound indirect flight with Scandinavian Airlines, departing from Seattle / Tacoma International on Sun, Sep 21, arriving in Dublin.Price includes taxes and charges.From C$552, select.
Seattle.C$554 per passenger.Departing Thu, May 22, returning Sat, May 31.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Dublin on Thu, May 22, arriving in Seattle / Tacoma International.Inbound indirect flight with Scandinavian Airlines, departing from Seattle / Tacoma International on Sat, May 31, arriving in Dublin.Price includes taxes and charges.From C$554, select.
Seattle.C$582 per passenger.Departing Tue, Jun 10, returning Mon, Jun 16.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Dublin on Tue, Jun 10, arriving in Seattle / Tacoma International.Inbound indirect flight with Scandinavian Airlines, departing from Seattle / Tacoma International on Mon, Jun 16, arriving in Dublin.Price includes taxes and charges.From C$582, select.
Seattle.C$758 per passenger.Departing Fri, Aug 29, returning Sun, Sep 7.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Dublin on Fri, Aug 29, arriving in Seattle / Tacoma International.Inbound indirect flight with Scandinavian Airlines, departing from Seattle / Tacoma International on Sun, Sep 7, arriving in Dublin.Price includes taxes and charges.From C$758, select.
Seattle.C$863 per passenger.Departing Thu, Jan 1, returning Thu, Jan 15.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Dublin on Thu, Jan 1, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Thu, Jan 15, arriving in Dublin.Price includes taxes and charges.From C$863, select.
Seattle.C$867 per passenger.Departing Thu, Apr 24, returning Sun, Apr 27.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Dublin on Thu, Apr 24, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Sun, Apr 27, arriving in Dublin.Price includes taxes and charges.From C$867, select.
Seattle.C$867 per passenger.Departing Fri, Feb 13, returning Wed, Feb 25.Round-trip flight with Icelandair.Outbound indirect flight with Icelandair, departing from Dublin on Fri, Feb 13, arriving in Seattle / Tacoma International.Inbound indirect flight with Icelandair, departing from Seattle / Tacoma International on Wed, Feb 25, arriving in Dublin.Price includes taxes and charges.From C$867, select.

Find the cheapest month to fly from Dublin to Seattle

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dublin to Seattle flights are currently cheapest in September.
Apr
from C$867
May
from C$554
Jun
from C$582
Jul
from C$981
Aug
from C$1,119
Sep
from C$552
Oct
from C$873
Nov
from C$930
Dec
from C$1,028
Jan
from C$863
Feb
from C$867
Mar
from C$981

Direct flights from Dublin to Seattle

Alternative Dublin to Seattle routes

Looking for the cheapest, fastest or easiest route from Dublin to Seattle? You could fly into the following airports instead.

Dublin to Seattle: Flight information

The things to know before you go.
Cheapest flight foundC$549
Cheapest month to flyMay
Average flight time9 hrs, 43 mins
Most popular airlineAmerican Airlines
Average flights per week38

Finding cheap flights from Dublin to Seattle: Frequently asked questions

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.
The best price we found for a round-trip flight from Dublin to Seattle is C$549. 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.
9 hours and 43 minutes is the average flight time from Dublin to Seattle.
American Airlines, Aer Lingus and British Airways fly direct from Dublin to Seattle.
There are 19 flights per week flying from Dublin to Seattle, as of April 2025.
The cheapest month to fly from Dublin to Seattle is usually April 2025.
If you're flying from Dublin Airport, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the center of Seattle. We've found flights to this airport from C$549.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Dublin Airport to Seattle on Tuesday, May 27, 2025.
Yes – the average flight time is 9 hours and 43 minutes.
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 Seattle 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.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 8°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.
Currently, Scandinavian Airlines and Aer Lingus offer the cheapest flight tickets to Seattle.

How to find cheap flights to Seattle from Dublin

Looking for cheap tickets from Dublin to Seattle? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

  • Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Dublin to Seattle. And with us, there are no hidden fees – what you see is what you pay.
  • Compare flight deals to Seattle from Dublin from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
  • Flex your dates to find the best Dublin–Seattle ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to Seattle from Dublin.
  • Set up a Price Alert. You can easily track the fare of your cheap Dublin–Seattle flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
  • Fly without stops. Only interested in direct flights between Dublin and Seattle? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
  • Find the cheapest Business Class flights from Dublin and Seattle. We scour the Internet for the best Business, Premium Economy and First Class flight fares to Seattle, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
  • Include nearby airports in your search. Widen your search for Dublin to Seattle flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.

    • Combine your flight to Seattle from Dublin with hotels and car rental

    Once you've secured your cheap flight ticket from Dublin to Seattle, discover the best prices and exclusive rates for hotels in Seattle or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.


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Plan the rest of your trip from Dublin to Seattle

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.