Question 1

How popular is this Dublin to Seattle flight route?

Accepted Answer

This flight path from Dublin to Seattle/Tacoma Intl was viewed by 81 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

Question 2

What are the cheapest airlines flying from Dublin to Seattle round-trip?

Accepted Answer

According to our current data, Scandinavian Airlines (£323), Icelandair (£460), and KLM (£495) offers the cheapest pricing from Dublin to Seattle. You may be able to fly from Dublin to Seattle for 40% less than the average price by searching for these airlines.

Question 3

What are the cheapest airlines to fly from Dublin to Seattle one-way?

Accepted Answer

To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at £286. Icelandair flights start at £421 while deals on JetBlue start at £427 one-way.

Question 4

How far ahead should I book a flight from Dublin to Seattle?

Accepted Answer

Booking 20 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dublin to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 5

What is the cheapest month to book a flight from Dublin to Seattle?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Dublin to Seattle (average of £622). Flying from Dublin to Seattle in July is currently the most expensive (average of £946). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

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

Accepted Answer

Travellers seeking maximum savings on their Dublin to Seattle flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Question 9

What are the cheapest flights from Dublin to Seattle?

Accepted Answer

Looking for the cheapest flight from Dublin to Seattle? While on average our users pay £570, our data indicates the cheapest price to be £479. The most popular route (Dublin - Seattle/Tacoma Intl), is priced around £559.

Question 10

What are the most reliable airlines from Dublin to Seattle?

Accepted Answer

Consider American Airlines (85%), Aer Lingus (85%) or British Airways (85%) when booking your flight. These represent the most reliable airlines when flying from Dublin to Seattle.

Question 11

What are the most popular airlines that fly from Dublin to Seattle?

Accepted Answer

Consider British Airways, Aer Lingus or Icelandair when booking your flight. These represent the most popular airlines when flying from Dublin to Seattle.

Question 12

What is the cheapest day to fly round-trip from Dublin to Seattle?

Accepted Answer

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 40% on your flight compared to booking on days when demand is much higher.

Question 13

How far in advance should I book a flight from Dublin to Seattle?

Accepted Answer

Find a great deal and save up to 51% by booking at least 21 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Dublin to Seattle within the next two weeks, with the cheapest ticket starting at £458.

Question 14

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

Accepted Answer

February can be a great time to fly to Seattle from Dublin with a flight ticket averaging about £546. Cheapflights users have found deals in the month of February for as cheap as £364. The most expensive prices can be found in the month of July.

Question 15

What is the cheapest time of day to fly from DUB to SEA?

Accepted Answer

When flying from Dublin to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 14% versus a flight in the afternoon.

Question 16

Can I find deals for flights from Dublin to Seattle that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Dublin to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 17

How can I find direct flights from Dublin to Seattle?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Seattle.

Question 18

Can I find deals for business class flights from Dublin to Seattle?

Accepted Answer

Yes. Cheapflights offers flight deals from Dublin to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 19

How does Cheapflights help users find flights from Dublin to Seattle?

Accepted Answer

Deals for Dublin to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 20

Why should you use Cheapflights to find cheap flight tickets from Dublin to Seattle?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Dublin to Seattle by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 21

Can Cheapflights find flights from Dublin to Seattle with no change fees?

Accepted Answer

Yes! Cheapflights helps users easily find flights from Dublin to Seattle with no change fees.

Question 22

Can Cheapflights notify me if prices for flights from Dublin to Seattle become cheaper?

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Round-trip from	£323
One-way from	£286
Popular in	July
Cheapest in	February
Average price	£635
Good round-trip deal	£515 or less

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£345	Average£517	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Icelandair	Cheapest£364	Average£496	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£424	Average£591	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Cheap flights from Dublin to Seattle from £286

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Dublin to Seattle/Tacoma Intl are usually found in February or January, booked 20 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Dublin to Seattle

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Dublin to Seattle

Cheapest flights from Dublin to SeattleExplore the most affordable flight options available from Dublin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Explore the most affordable flight options available from Dublin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Dublin to Seattle that are best for you.

Best time to book a flight from Dublin to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Dublin with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Dublin to Seattle

How far ahead should I book a flight from Dublin to Seattle?

Use this chart to determine the optimal time to book a return flight from Dublin to Seattle. Price data was last updated on 9 June 2025.

What is the cheapest month to book a flight from Dublin to Seattle?

What is the cheapest time of day to fly from DUB to SEA?

Find hourly flight availability from Dublin to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

Reviews of airlines servicing Seattle

Read reviews from past customers who have flown Delta, KLM and Finnair from Dublin to Seattle. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dublin to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How popular is this Dublin to Seattle flight route?

What are the cheapest airlines flying from Dublin to Seattle round-trip?

What are the cheapest airlines to fly from Dublin to Seattle one-way?

What are the most reliable airlines from Dublin to Seattle?

What are the cheapest flights from Dublin to Seattle?

Can I find deals for flights from Dublin to Seattle that include hotel bookings?

How can I find direct flights from Dublin to Seattle?

Can I find deals for business class flights from Dublin to Seattle?

What is the cheapest month to book a flight from Dublin to Seattle?

Travelling to a place near Dublin?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Seattle by adding a car hire and/or hotel booking to your travel itinerary.

Top 3 airlines flying from Dublin to Seattle

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dublin to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Dublin to Seattle?

Can Cheapflights find flights from Dublin to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Dublin to Seattle become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Dublin to Seattle
Explore the most affordable flight options available from Dublin to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.