Question 1

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

Accepted Answer

According to our data, Tuesday is the cheapest day to fly to Seattle from Ireland. The lowest ticket price found for a Tuesday departure recently was £570. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Saturday is £720.

Question 2

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

Accepted Answer

There are 2 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 3

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

Accepted Answer

As of July 2025, there are 21 flights per week flying from Ireland to Seattle. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Question 4

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

Accepted Answer

According to our data, the cheapest time of day to fly to Seattle is in the morning. momondo users have found flights departing from Ireland to Seattle in the morning for as low as £536. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive, with an average ticket price of £617.

Question 5

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 6

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

Accepted Answer

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

Question 7

Which airlines fly to Seattle?

Accepted Answer

Aer Lingus, Icelandair and American Airlines 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

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 9

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 £547 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 £513 on momondo.

Question 10

What is the cheapest month to fly to Seattle?

Accepted Answer

The cheapest month to fly to Seattle from Ireland is in February. Flight prices, which tend to average around £454, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Seattle, with average flight prices from Ireland averaging around £471.

Question 11

Can stopping save me money on Ireland to Seattle flights?

Accepted Answer

You could potentially save up to 29% on your flight if you consider stops on a Ireland to Seattle flight.

Question 12

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 are updated daily.

Question 13

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

Accepted Answer

As of July 2025, there are 4 operators available to choose from for flights from Ireland to Seattle/Tacoma Intl Airport.

Question 14

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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ireland to Seattle/Tacoma Intl Airport.

Question 15

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

Accepted Answer

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best price found	£304
Fastest flight time	9h 40m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sun
Airports in Seattle	1 airport

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £349	Free Cancellation	Rating 6.6 7,151 reviews	Search British Airways flights
Icelandair	PriceFrom £383	Free Cancellation	Rating 7.0 518 reviews	Search Icelandair flights
Aer Lingus	PriceFrom £430	Free Cancellation	Rating 7.1 1,170 reviews	Search Aer Lingus flights
American Airlines	PriceFrom £500	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Cheap flights from Ireland to Seattle from £247

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Seattle departing on 27/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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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?

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?

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 2 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?

You could potentially save up to 29% on your flight if you consider stops on a Ireland to Seattle flight.

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

WestJet, Icelandair, and JetBlue 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, there are 21 flights per week flying from Ireland to Seattle. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

Cheap Ireland to Seattle flight deals and tips

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

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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

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