Question 1

What is the cheapest airline that flies from Ireland to Seattle/Tacoma Intl?

Accepted Answer

Icelandair, WestJet, and Scandinavian Airlines are the most popular carriers operating from Ireland to Seattle/Tacoma Intl

Question 2

What is the cheapest Ireland to Seattle/Tacoma Intl flight route?

Accepted Answer

Fly from Dublin to Seattle/Tacoma Intl for the best Ireland - Seattle/Tacoma Intl flight prices

Question 3

What is the cheapest time of day to depart on your flight to Seattle?

Accepted Answer

Our data shows that the cheapest Ireland to Seattle flights are usually those with departure times in the morning. Our users have found flights to Seattle in the morning for as low as €571. Flights in the afternoon are often more expensive, with an average ticket price of €712.

Question 4

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

Accepted Answer

You are more likely to see cheaper flights to Seattle from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around €630 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Ireland for as low as €591 on momondo.

Question 5

How many flights depart from Ireland to Seattle on average per day?

Accepted Answer

As of July 2025, 3 flights take off from Ireland and land in Seattle each day. The most common flight departure time for this route is 16:00, with 100% of daily flights taking off in the afternoon.

Question 6

What is the cheapest day to depart on your flight to Seattle?

Accepted Answer

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €619. Flights from Ireland to Seattle on a Monday will generally be more expensive and average around €802. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 7

Which airlines fly to Seattle?

Accepted Answer

Aer Lingus, Icelandair and British Airways are the top three most popular airlines that fly to Seattle from Ireland according to our data. Aer Lingus is the first choice among our users, with 54% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Question 8

What cabin class options are available on Ireland to Seattle/Tacoma Intl flights?

Accepted Answer

There are 1 cabin classes available to choose from on Ireland to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 9

Can stopping save me money on Ireland to Seattle flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Ireland to Seattle.

Question 10

How many flights depart from Ireland to Seattle on average per week?

Accepted Answer

As of July 2025, 21 flights take off from Ireland and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Question 11

What is the cheapest month to fly to Seattle?

Accepted Answer

If you’re not able to fly to Seattle in February, then January is your next best option. Flight prices from Ireland to Seattle during January average around €542.

Question 12

How long does it take to fly to Seattle?

Accepted Answer

On average, it takes 9h 40m to fly from Ireland to Seattle if you fly out of Dublin (the most popular airport in Ireland) and into Seattle (the most popular airport in Seattle). If you’re flying out of Cork and into Seattle, then the flight time is around 13h 35m.

Question 13

When did momondo last update prices for flights from Ireland to Seattle/Tacoma Intl Airport?

Accepted Answer

Prices for flights from Ireland to Seattle/Tacoma Intl Airport were last updated today.

Question 14

How many operators does momondo search for flights from Ireland to Seattle/Tacoma Intl Airport?

Accepted Answer

The number of operators available for flights from Ireland to Seattle/Tacoma Intl Airport is 4 as of July 2025.

Question 15

How old do you have to be to fly from Ireland to Seattle/Tacoma Intl Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Seattle/Tacoma Intl Airport.

Question 16

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

Accepted Answer

The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best price found	€236
Fastest flight time	11h 35m
Direct flights	Every day
Airports in Seattle	1 airport

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom €420	Free Cancellation	Rating 7.0 516 reviews	Search Icelandair flights
Aer Lingus	PriceFrom €494	Free Cancellation	Rating 7.1 1,168 reviews	Search Aer Lingus flights
KLM	PriceFrom €498	Free Cancellation	Rating 7.8 1,372 reviews	Search KLM flights
British Airways	PriceFrom €525	Free Cancellation	Rating 6.6 7,141 reviews	Search British Airways flights

Cheap flights from Ireland to Seattle from €236

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Seattle departing on 22/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Ireland to Seattle

Recent return flight deals from Ireland to Seattle

Recent one-way flight deals from Ireland to Seattle

Recent direct flight deals from Ireland to Seattle

Scandinavian Airlines flights from Ireland to Seattle

Our best Scandinavian Airlines deals on Ireland to Seattle flight tickets

Icelandair flights from Ireland to Seattle

Our best Icelandair deals on Ireland to Seattle flight tickets

See travel insights to Seattle from

How to get the cheapest flight ticket from Ireland to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

If you’re not able to fly to Seattle in February, then January is your next best option. Flight prices from Ireland to Seattle during January average around €542.

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

Our data shows that the cheapest Ireland to Seattle flights are usually those with departure times in the morning. Our users have found flights to Seattle in the morning for as low as €571. Flights in the afternoon are often more expensive, with an average ticket price of €712.

What is the cheapest Ireland to Seattle/Tacoma Intl flight route?

Fly from Dublin to Seattle/Tacoma Intl for the best Ireland - Seattle/Tacoma Intl flight prices

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

What cabin class options are available on Ireland to Seattle/Tacoma Intl flights?

There are 1 cabin classes available to choose from on Ireland to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Ireland to Seattle flights?

No. A direct flight is the cheapest option for a flight between Ireland to Seattle.

What is the cheapest airline that flies from Ireland to Seattle/Tacoma Intl?

Icelandair, WestJet, and Scandinavian Airlines are the most popular carriers operating from Ireland to Seattle/Tacoma Intl

Which airlines fly to Seattle?

How many flights depart from Ireland to Seattle on average per day?

As of July 2025, 3 flights take off from Ireland and land in Seattle each day. The most common flight departure time for this route is 16:00, with 100% of daily flights taking off in the afternoon.

How many flights depart from Ireland to Seattle on average per week?

As of July 2025, 21 flights take off from Ireland and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

How long does it take to fly to Seattle?

On average, it takes 9h 40m to fly from Ireland to Seattle if you fly out of Dublin (the most popular airport in Ireland) and into Seattle (the most popular airport in Seattle). If you’re flying out of Cork and into Seattle, then the flight time is around 13h 35m.

Cheap Ireland to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Seattle

Best price found

Fastest flight time

Direct flights

Airports in Seattle

When did momondo last update prices for flights from Ireland to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Ireland to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Ireland to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Ireland to Seattle?

Best airlines flying from Ireland to Seattle

Compare and see reviews for airlines that fly from Ireland to Seattle with momondo

Travelling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Seattle?

Can I find flights from Ireland to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Ireland to Seattle?

I’m not ready to book a flight from Ireland to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington