What is the most punctual flight time for Ireland to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

How long does it take to fly to Seattle?

On average, it takes 9h 39m 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 20h 10m.

How often are flights from Ireland to Seattle delayed?

Historically, on average around 12% of flights between Ireland and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 133 minutes.

Which airlines fly to Seattle?

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 57% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

WestJet and Aer Lingus are the most popular carriers operating from Ireland to Seattle/Tacoma Intl

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Ireland to Seattle flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

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

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

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

The number of operators available for flights from Ireland to Seattle/Tacoma Intl Airport is 3 as of November 2025.

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

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.

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

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.

€265 Cheap Flights from Ireland to Seattle in 2025/26

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Recent return flight deals from Ireland to Seattle

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11:30 - 17:00DUB-SEA

13h 30m1 stop

14:35 - 10:15SEA-DUB

11h 40m1 stop

€374Icelandair

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Thu, 22 Jan - Fri, 30 Jan

11:30 - 17:00DUB-SEA

13h 30m1 stop

14:35 - 10:15SEA-DUB

11h 40m1 stop

€395Icelandair

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Thu, 22 Jan - Fri, 30 Jan

07:50 - 16:55SNN-SEA

17h 05m1 stop

18:50 - 16:45SEA-SNN

13h 55m1 stop

€610American Airlines

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Wed, 4 Feb - Sun, 8 Feb

07:50 - 16:55SNN-SEA

17h 05m1 stop

14:04 - 11:30SEA-SNN

37h 26m2 stops

€611American Airlines

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Wed, 28 Jan - Sun, 1 Feb

17:30 - 14:34SNN-SEA

53h 04m2 stops

06:12 - 19:25SEA-SNN

29h 13m2 stops

€613British Airways

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Wed, 4 Feb - Sun, 8 Feb

07:50 - 14:34SNN-SEA

38h 44m2 stops

08:04 - 11:30SEA-SNN

19h 26m2 stops

€614British Airways

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Wed, 28 Jan - Sun, 1 Feb

06:00 - 20:46ORK-SEA

22h 46m2 stops

14:15 - 15:00SEA-ORK

16h 45m1 stop

€700Delta

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Wed, 18 Feb - Sun, 22 Feb

06:00 - 14:33ORK-SEA

16h 33m2 stops

14:15 - 15:00SEA-ORK

16h 45m1 stop

€702Delta

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Wed, 18 Feb - Sun, 22 Feb

07:50 - 09:31SNN-SEA

33h 41m3 stops

14:35 - 21:15SEA-SNN

22h 40m2 stops

€765Multiple Airlines

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Sat, 28 Feb - Sat, 7 Mar

07:50 - 09:31SNN-SEA

33h 41m3 stops

10:05 - 19:25SEA-SNN

25h 20m3 stops

€927Multiple Airlines

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Sat, 28 Feb - Sat, 7 Mar

American Airlines flights from Ireland to Seattle

Our best American Airlines deals on Ireland to Seattle flight tickets

American Airlines

4 Feb

SNN07:50Shannon

17h 05m

1 stop

SEA16:55Seattle/Tacoma Intl

8 Feb

SEA18:50Seattle/Tacoma Intl

13h 55m

1 stop

SNN16:45Shannon

€610

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American Airlines

28 Jan

SNN07:50Shannon

17h 05m

1 stop

SEA16:55Seattle/Tacoma Intl

1 Feb

SEA14:04Seattle/Tacoma Intl

37h 26m

2 stops

SNN11:30Shannon

€611

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American Airlines

9 Apr

ORK11:45Cork

31h 50m

1 stop

SEA11:35Seattle/Tacoma Intl

16 Apr

SEA15:21Seattle/Tacoma Intl

15h 49m

2 stops

ORK15:10Cork

€615

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Delta flights from Ireland to Seattle

Our best Delta deals on Ireland to Seattle flight tickets

Delta

24 Feb

DUB05:55Dublin

13h 45m

1 stop

SEA11:40Seattle/Tacoma Intl

3 Mar

SEA13:40Seattle/Tacoma Intl

18h 05m

1 stop

DUB15:45Dublin

€448

Find similar

Delta

25 Feb

DUB05:55Dublin

13h 45m

1 stop

SEA11:40Seattle/Tacoma Intl

4 Mar

SEA08:30Seattle/Tacoma Intl

23h 15m

2 stops

DUB15:45Dublin

€451

Find similar

Delta

23 Feb

DUB05:55Dublin

22h 49m

2 stops

SEA20:44Seattle/Tacoma Intl

2 Mar

SEA14:10Seattle/Tacoma Intl

17h 35m

1 stop

DUB15:45Dublin

€452

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Fly from

Fly to

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 22/1

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Fri 30/1

14:35-10:15

1 stop11h 40m

€374

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 22/1

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Fri 30/1

14:35-10:15

1 stop11h 40m

€394

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 4/2

07:50-16:55

1 stop17h 05m

Seattle/Tacoma Intl

Sun 8/2

18:50-16:45

1 stop13h 55m

€610

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 28/1

07:50-16:55

1 stop17h 05m

Seattle/Tacoma Intl

Sun 1/2

14:04-11:30

2 stops37h 26m

€611

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 4/2

17:30-14:34

2 stops53h 04m

Seattle/Tacoma Intl

Sun 8/2

06:12-19:25

2 stops29h 13m

€613

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Wed 28/1

07:50-14:34

2 stops38h 44m

Seattle/Tacoma Intl

Sun 1/2

08:04-11:30

2 stops19h 26m

€614

CorkSeattle

ORK - SEA

ORKSEA

Cork

Wed 18/2

06:00-20:46

2 stops22h 46m

Seattle/Tacoma Intl

Sun 22/2

14:15-15:00

1 stop16h 45m

€700

CorkSeattle

ORK - SEA

ORKSEA

Cork

Wed 18/2

06:00-14:33

2 stops16h 33m

Seattle/Tacoma Intl

Sun 22/2

14:15-15:00

1 stop16h 45m

€702

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Sat 28/2

07:50-09:31

3 stops33h 41m

Seattle/Tacoma Intl

Sat 7/3

14:35-21:15

2 stops22h 40m

€765

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Sat 28/2

07:50-09:31

3 stops33h 41m

Seattle/Tacoma Intl

Sat 7/3

10:05-19:25

3 stops25h 20m

€927

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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

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Seattle?

If you’re not able to fly to Seattle in February, then November is your next best option. Flight prices from Ireland to Seattle during November average around €551.

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

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 €644. Flights from Ireland to Seattle on a Wednesday will generally be more expensive and average around €806. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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 €574. Flights in the afternoon are often more expensive, with an average ticket price of €708.

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?

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 €616 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 €518 on momondo.

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

There is only 1 cabin class 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 39% on your flight if you consider stops on a Ireland to Seattle flight.

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	€515
Fastest flight time	9h 39m
Direct flights	Mon, Tue, Wed, Thu, Sat and Sun
Airports in Seattle	1 airport

The best flight deal from Ireland to Seattle found on momondo in the last 72 hours is €515

The fastest flight from Ireland to Seattle takes 9h 39m

Direct flights go from Ireland to Seattle on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights..

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

When did momondo last update prices for flights from Ireland to Seattle/Tacoma Intl Airport?
Prices for flights from Ireland to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Ireland to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Ireland to Seattle/Tacoma Intl Airport is 3 as of November 2025.
How old do you have to be to fly from Ireland to Seattle/Tacoma Intl Airport?
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.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
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.
What is the most popular plane model from Ireland to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Seattle is Airbus A330-200, representing 80.99% of all bookings. The subsequent popular models are Airbus A318/A319/A320/A321 at 7.75%, Airbus A321-100/200 at 2.82%, and Airbus A330-300 at 2.82%.

Best airlines flying from Ireland to Seattle

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

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom €401	Free Cancellation	Rating 7.0 581 reviews	Search Icelandair flights
Aer Lingus	PriceFrom €480	Free Cancellation	Rating 7.2 1,382 reviews	Search Aer Lingus flights
British Airways	PriceFrom €506	Free Cancellation	Rating 6.7 7,539 reviews	Search British Airways flights

Aberdeen

Lynnwood

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Seattle. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Seattle from Ireland which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Ireland to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Seattle from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Ireland to Seattle from €265

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 5/5. 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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American Airlines flights from Ireland to Seattle

Our best American Airlines deals on Ireland to Seattle flight tickets

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Our best Delta deals on Ireland to Seattle flight tickets

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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?

If you’re not able to fly to Seattle in February, then November is your next best option. Flight prices from Ireland to Seattle during November average around €551.

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 €574. Flights in the afternoon are often more expensive, with an average ticket price of €708.

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 is only 1 cabin class 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 39% 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 and Aer Lingus are the most popular carriers operating from Ireland to Seattle/Tacoma Intl

Which airlines fly to Seattle?

How often are flights from Ireland to Seattle delayed?

Historically, on average around 12% of flights between Ireland and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 133 minutes.

What is the most punctual flight time for Ireland to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Ireland to Seattle flights?

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

How long does it take to fly to Seattle?

On average, it takes 9h 39m 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 20h 10m.

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