£277 Cheap Flights from Dublin (DUB) to Seattle (SEA)

View £277 flight on Tue, 12 May 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £277 for one-way flights and £443 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Tue, 16 Jun - Tue, 23 Jun
DUB
Dublin
SEA
Seattle
£443 Return, found 5 days ago
£443
Return
found 5 days ago
Select Finnair flight, departing Tue, 16 Jun from Dublin to Seattle, returning Tue, 23 Jun, priced at £443 found 5 days ago
Finnair
Fri, 22 May - Wed, 3 Jun
DUB
Dublin
SEA
Seattle
£449 Return, found 1 day ago
£449
Return
found 1 day ago
Select Finnair flight, departing Fri, 22 May from Dublin to Seattle, returning Wed, 3 Jun, priced at £449 found 1 day ago
Finnair
Tue, 19 May - Fri, 29 May
DUB
Dublin
SEA
Seattle
£450 Return, found 6 days ago
£450
Return
found 6 days ago
Select Finnair flight, departing Tue, 19 May from Dublin to Seattle, returning Fri, 29 May, priced at £450 found 6 days ago
Icelandair
Wed, 6 May - Sat, 9 May
DUB
Dublin
SEA
Seattle
£452 Return, found 6 days ago
£452
Return
found 6 days ago
Select Icelandair flight, departing Wed, 6 May from Dublin to Seattle, returning Sat, 9 May, priced at £452 found 6 days ago
Aer Lingus
Sat, 23 May - Mon, 1 Jun
DUB
Dublin
SEA
Seattle
£455 Return, found 1 day ago
£455
Return
found 1 day ago
Select Aer Lingus flight, departing Sat, 23 May from Dublin to Seattle, returning Mon, 1 Jun, priced at £455 found 1 day ago
Finnair
Thu, 14 May - Sun, 17 May
DUB
Dublin
SEA
Seattle
£457 Return, found 6 days ago
£457
Return
found 6 days ago
Select Finnair flight, departing Thu, 14 May from Dublin to Seattle, returning Sun, 17 May, priced at £457 found 6 days ago
American Airlines
Fri, 8 May - Fri, 29 May
DUB
Dublin
SEA
Seattle
£459 Return, found 13 hours ago
£459
Return
found 13 hours ago
Select American Airlines flight, departing Fri, 8 May from Dublin to Seattle, returning Fri, 29 May, priced at £459 found 13 hours ago
Scandinavian Airlines
Fri, 22 May - Tue, 2 Jun
DUB
Dublin
SEA
Seattle
£459 Return, found 2 days ago
£459
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Fri, 22 May from Dublin to Seattle, returning Tue, 2 Jun, priced at £459 found 2 days ago
Iberia
Fri, 22 May - Fri, 29 May
DUB
Dublin
SEA
Seattle
£460 Return, found 6 days ago
£460
Return
found 6 days ago
Select Iberia flight, departing Fri, 22 May from Dublin to Seattle, returning Fri, 29 May, priced at £460 found 6 days ago
KLM
Sat, 16 May - Sat, 23 May
DUB
Dublin
SEA
Seattle
£461 Return, found 1 day ago
£461
Return
found 1 day ago
Select KLM flight, departing Sat, 16 May from Dublin to Seattle, returning Sat, 23 May, priced at £461 found 1 day ago

Alternative airports near Seattle

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

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from £637
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from £637

Frequently asked questions

How much does a flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
One-way flights typically cost between £1,563 and £6,215 and return flights often range between £1,182 and £7,331. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
Which airlines fly direct from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Enter DUB to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) will differ from traveller to traveller. If you like to fly early, EI offers early morning flights. If price is the most important factor, EI typically offers the lowest fares. EI offers the most daily flights from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There is approximately 1 nonstop flight per day from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.). For even more choice, look at flights that include layovers. You'll find around 77 connecting flights per day. Some common connection points include Heathrow (LHR), Frankfurt Intl. (FRA), and O'Hare Intl. (ORD).
What is the earliest flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs at approximately 5:00 AM local time. This service is operated by Lufthansa and Condor. This is a seasonal service active in February and December. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) (SEA) on a Thursday, with around 73 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Aer Lingus, British Airways, and United Airlines. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, between 9am and 12pm. About 31% of passengers prefer this time window. Many major carriers, including United Airlines, Delta Air Lines and American Airlines, offer flights during this window. This timing works well because it allows for a comfortable morning departure and an afternoon arrival, giving you time to settle in.
How long does it take to fly from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Flying nonstop from DUB to SEA takes around 9 hours 50 minutes, with the route covering approximately 4,527 miles. Flights with a layover typically take 7 hours longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Select the "Business class" and "First class" filters when looking for DUB to SEA flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle from DUB (DUB)?
If you're planning to travel to Seattle from DUB (DUB), you can fly directly into Seattle - Tacoma Intl. (SEA) Some flights may connect through major hubs like Heathrow (LHR), Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Dublin (DUB) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Dublin
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, United, WestJet
Return price
£443
Distance
7241 km
Average flight time
9 hours 45 mins

Book with confidence

Compare flights from Dublin to Seattle easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Dublin to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Dublin to Seattle - Tacoma Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Dublin (DUB) to Seattle - Tacoma Intl. (SEA)

The easiest way to view the best deals on flights from Dublin to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Dublin to Seattle - Tacoma Intl. start at just £443 and range up to £586.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Dublin and Seattle
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Dublin to Seattle flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Dublin to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Dublin to Seattle easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.