$244 Cheap Flights from Seattle (SEA) to Dublin (DUB)

View $244 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Dublin Airport (DUB)

Cheap Flights from Seattle to Dublin (SEA-DUB)

Prices were available within the past 7 days and start at $244 for one-way flights and $359 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Mon, Nov 10 - Wed, Nov 19
SEA
Seattle
DUB
Dublin
$359 Roundtrip, just found
$359
Roundtrip
just found
Select Aer Lingus flight, departing Mon, Nov 10 from Seattle to Dublin, returning Wed, Nov 19, priced at $359 just found
Icelandair
Fri, Apr 24 - Sat, May 2
SEA
Seattle
DUB
Dublin
$394 Roundtrip, found 4 days ago
$394
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Apr 24 from Seattle to Dublin, returning Sat, May 2, priced at $394 found 4 days ago
Icelandair
Mon, May 4 - Fri, May 8
SEA
Seattle
DUB
Dublin
$399 Roundtrip, found 6 days ago
$399
Roundtrip
found 6 days ago
Select Icelandair flight, departing Mon, May 4 from Seattle to Dublin, returning Fri, May 8, priced at $399 found 6 days ago
Icelandair
Fri, Apr 10 - Mon, Apr 27
SEA
Seattle
DUB
Dublin
$406 Roundtrip, found 5 days ago
$406
Roundtrip
found 5 days ago
Select Icelandair flight, departing Fri, Apr 10 from Seattle to Dublin, returning Mon, Apr 27, priced at $406 found 5 days ago
Air Canada
Mon, May 4 - Wed, May 13
SEA
Seattle
DUB
Dublin
$461 Roundtrip, found 5 days ago
$461
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, May 4 from Seattle to Dublin, returning Wed, May 13, priced at $461 found 5 days ago
United
Wed, Apr 29 - Wed, May 6
SEA
Seattle
DUB
Dublin
$466 Roundtrip, found 9 hours ago
$466
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Apr 29 from Seattle to Dublin, returning Wed, May 6, priced at $466 found 9 hours ago
British Airways
Mon, Nov 3 - Mon, Nov 10
SEA
Seattle
DUB
Dublin
$470 Roundtrip, just found
$470
Roundtrip
just found
Select British Airways flight, departing Mon, Nov 3 from Seattle to Dublin, returning Mon, Nov 10, priced at $470 just found
Lufthansa
Tue, May 5 - Wed, May 13
SEA
Seattle
DUB
Dublin
$480 Roundtrip, found 6 days ago
$480
Roundtrip
found 6 days ago
Select Lufthansa flight, departing Tue, May 5 from Seattle to Dublin, returning Wed, May 13, priced at $480 found 6 days ago
Iberia
Sun, Nov 16 - Fri, Dec 5
SEA
Seattle
DUB
Dublin
$483 Roundtrip, found 2 days ago
$483
Roundtrip
found 2 days ago
Select Iberia flight, departing Sun, Nov 16 from Seattle to Dublin, returning Fri, Dec 5, priced at $483 found 2 days ago
Air France
Mon, Nov 17 - Wed, Nov 26
SEA
Seattle
DUB
Dublin
$529 Roundtrip, found 5 hours ago
$529
Roundtrip
found 5 hours ago
Select Air France flight, departing Mon, Nov 17 from Seattle to Dublin, returning Wed, Nov 26, priced at $529 found 5 hours ago

Find the cheapest month to fly from Seattle (SEA) to Dublin (DUB)

November is typically the cheapest month to fly

From $338 - $863 per traveler.

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $603
DUB
Dublin Airport
CheapestClosest
Average driving time to city center14 min
Flights from $603

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB) cost?
Grab a cheap one-way flight from $244 or cheap return flight from $359 from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
November is the most affordable month to fly from SEA to DUB. Planning your trip for the off-season is often the key to better flight prices.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
To find the cheapest airline flying from SEA to DUB, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
Direct flights from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to DUB?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
To touch down at Dublin Airport (DUB) on time, opt for a flight that leaves Seattle - Tacoma Intl. Airport (SEA) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB) last-minute?
Booking your flight from SEA to DUB shortly before your journey is typically more expensive. However, if you're flexible with your itinerary, you could land a cheap last-minute fare.
Is it cheaper to book a SEA to DUB flight and hotel package?
Compared with arranging hotels and flights separately, booking a SEA to DUB flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of stays, then customize your trip with extras like tours and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
Typically, it's possible to reschedule or cancel your SEA to DUB flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, WestJet
Roundtrip price
$358
Distance
4526 mi
Average flight time
9 hours 5 mins

Book with confidence

Book with confidence

Seattle to Dublin Flights

The cheapest times to fly from Seattle to Dublin

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Dublin are during the month of November. You can find some of the cheapest flights from Seattle to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Dublin

Sunday is one of the best days to book for cheap flights from Seattle to Dublin: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Dublin

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $244 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Dublin flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Dublin airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Dublin Flights

Explore a world of travel with Expedia

Explore a world of travel with Expedia

*Available to One Key members.