What airlines fly to Dublin?

Aer Lingus, Icelandair and American Airlines are the top three most popular airlines that fly to Dublin from Seattle according to our data. Aer Lingus is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Dublin. Keep in mind that there are 12 different airlines that fly to Dublin on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Seattle and Dublin?

Reykjavik (KEF) was the most common stop: 58% of momondo users choosing 1-stop flights on this route connected there.

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

The number of flights available between Seattle and Dublin is 2 per day as of December 2025. The most frequent departure time is 8:00PM, with 100% of daily flights leaving in the evening.

Which layover airport has the shortest travel time from Seattle to Dublin?

Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 23m.

Which layover airport offers the lowest fares from Seattle to Dublin?

Flights via Helsinki (HEL) offer the lowest average round-trip price of $326.

Which layover airport has the shortest connection time from Seattle to Dublin?

Amsterdam (AMS) has the shortest average layover time for this route: 1h 33m.

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

As of December 2025, there are 16 flights per week flying from Seattle to Dublin. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.

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

Prices for flights from Seattle/Tacoma Intl Airport to Dublin Airport are updated daily.

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

There are 12 operators available for flights from Seattle/Tacoma Intl Airport to Dublin Airport as of December 2025.

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

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 Seattle/Tacoma Intl Airport to Dublin Airport.

What documentation or ID do you need to fly to Dublin Airport?

The necessary travel and health documents for your Dublin 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 license 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.

$278 Cheap Flights from Seattle to Dublin in 2025/26

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2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

11:30 am - 5:00 pm

DUB

SEA

13h 30m1 stop

$438Icelandair

Tue, Jan 27 - Wed, Feb 4

3:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

2:15 pm - 5:55 pm

DUB

SEA

11h 40m1 stop

$446Icelandair

Tue, Mar 17 - Tue, Apr 14

2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

11:30 am - 5:00 pm

DUB

SEA

13h 30m1 stop

$447Icelandair

Tue, Feb 24 - Tue, Mar 3

10:55 am - 8:10 am

SEA

DUB

13h 15m1 stop

5:00 am - 12:10 pm

DUB

SEA

15h 10m1 stop

$450Multiple Airlines

Mon, Feb 23 - Thu, Mar 5

2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

11:30 am - 5:00 pm

DUB

SEA

13h 30m1 stop

$451Icelandair

Wed, Feb 25 - Mon, Mar 2

2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

11:30 am - 5:00 pm

DUB

SEA

13h 30m1 stop

$455Icelandair

Mon, Feb 16 - Wed, Mar 4

2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

2:15 pm - 8:40 pm

DUB

SEA

14h 25m1 stop

$459Icelandair

Thu, Mar 5 - Thu, Apr 16

2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

11:30 am - 6:00 pm

DUB

SEA

13h 30m1 stop

$460Icelandair

Wed, Mar 4 - Wed, Mar 11

2:35 pm - 10:15 am

SEA

DUB

11h 40m1 stop

11:30 am - 5:00 pm

DUB

SEA

13h 30m1 stop

$461Icelandair

Tue, Feb 10 - Tue, Feb 17

5:50 am - 7:10 am

SEA

DUB

17h 20m2 stops

9:00 am - 7:16 pm

DUB

SEA

18h 16m2 stops

$462Multiple Airlines

Tue, Jan 27 - Wed, Feb 4

Air Canada flights from Seattle to Dublin

Our best Air Canada deals on Seattle to Dublin flight tickets

Air Canada

Feb 16

SEA8:00 pmSeattle/Tacoma Intl

27h 10m

2 stops

DUB7:10 amDublin

Mar 4

DUB9:00 amDublin

21h 16m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$465

Find similar

Air Canada

Feb 16

SEA3:40 pmSeattle/Tacoma Intl

31h 30m

2 stops

DUB7:10 amDublin

Mar 4

DUB9:00 amDublin

21h 16m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$467

Find similar

Air Canada

Feb 16

SEA8:00 pmSeattle/Tacoma Intl

27h 10m

2 stops

DUB7:10 amDublin

Mar 4

DUB9:00 amDublin

21h 16m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$469

Find similar

United Airlines flights from Seattle to Dublin

Our best United Airlines deals on Seattle to Dublin flight tickets

United Airlines

Mar 3

SEA9:00 amSeattle/Tacoma Intl

16h 55m

2 stops

DUB9:55 amDublin

Apr 14

DUB9:50 amDublin

33h 58m

2 stops

SEA11:48 amSeattle/Tacoma Intl

$480

Find similar

United Airlines

Apr 20

SEA2:24 pmSeattle/Tacoma Intl

35h 21m

1 stop

DUB9:45 amDublin

May 5

DUB9:50 amDublin

32h 30m

1 stop

SEA10:20 amSeattle/Tacoma Intl

$481

Find similar

United Airlines

Feb 16

SEA7:00 amSeattle/Tacoma Intl

17h 10m

1 stop

DUB8:10 amDublin

Mar 4

DUB9:00 amDublin

21h 16m

1 stop

SEA10:16 pmSeattle/Tacoma Intl

$484

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Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/27

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Wed 2/4

11:30 am-5:00 pm

1 stop13h 30m

$438

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 3/17

3:35 pm-10:15 am

1 stop11h 40m

Dublin

Tue 4/14

2:15 pm-5:55 pm

1 stop11h 40m

$446

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 2/24

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Tue 3/3

11:30 am-5:00 pm

1 stop13h 30m

$447

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 2/23

10:55 am-8:10 am

1 stop13h 15m

Dublin

Thu 3/5

5:00 am-12:10 pm

1 stop15h 10m

$450

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 2/25

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Mon 3/2

11:30 am-5:00 pm

1 stop13h 30m

$451

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Wed 3/4

11:30 am-5:00 pm

1 stop13h 30m

$455

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 3/5

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Thu 4/16

2:15 pm-8:40 pm

1 stop14h 25m

$459

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 3/4

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Wed 3/11

11:30 am-6:00 pm

1 stop13h 30m

$460

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 2/10

2:35 pm-10:15 am

1 stop11h 40m

Dublin

Tue 2/17

11:30 am-5:00 pm

1 stop13h 30m

$461

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 1/27

5:50 am-7:10 am

2 stops17h 20m

Dublin

Wed 2/4

9:00 am-7:16 pm

2 stops18h 16m

$462

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Dublin

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

Layovers

Other information

What is the cheapest month to fly to Dublin?

In general, November is the cheapest month to fly from Seattle to Dublin. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $472. If you’re not able to fly to Dublin in November, then January is your next best option. Flight prices from Seattle to Dublin during January average around $544.

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

The cheapest day to depart from Seattle to Dublin is on a Wednesday. Travelers who choose to depart for Dublin on a Wednesday will often find tickets for as low as $720. Flights from Seattle to Dublin on a Saturday will generally be more expensive and average around $924. 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 Dublin?

At noon is the cheapest time of day to fly from Seattle to Dublin when you can find flight prices for as low as $610. Flying to Dublin at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $889.

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

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

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

You are more likely to see cheaper flights to Dublin from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Dublin for around $657 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dublin from Seattle for as low as $594 on momondo.

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

There are 2 cabin classes available to choose from on Seattle/Tacoma Intl to Dublin 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 Seattle to Dublin flights?

You could potentially save up to 40% on your flight if you consider stops on a Seattle to Dublin flight.

How have Seattle to Dublin flight prices changed over time?

As of December 2025, prices for Seattle to Dublin flights are approximately 46% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Dublin

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Dublin according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Seattle to Dublin (SEA to DUB) flight deals and tips

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

Best Price Found	$434
Fastest flight time	9h 00m
Direct flights	Every day
Airports in Dublin	1 airport

The best one-way flight to Dublin from Seattle in the past 72 hours is $434. The best round-trip flight deal from Seattle to Dublin found on momondo in the last 72 hours is $583.

The fastest flight from Seattle to Dublin takes 9h 00m

Direct flights go from Seattle to Dublin every day.

There is 1 airport in Dublin. From Seattle there are direct flights to Dublin (DUB).

Search flight deals

How far is Seattle/Tacoma Intl to Dublin by plane?
Dublin is 4518.4 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 9h 00m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Dublin Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Dublin Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Dublin Airport?
There are 12 operators available for flights from Seattle/Tacoma Intl Airport to Dublin Airport as of December 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Dublin Airport?
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 Seattle/Tacoma Intl Airport to Dublin Airport.
What documentation or ID do you need to fly to Dublin Airport?
The necessary travel and health documents for your Dublin 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 license 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 Seattle to Dublin?
Based on momondo bookings for flights between Seattle and Dublin, the leading plane model is Airbus A330-200, making up 66.84% of the total bookings. Other popular models include Airbus A330-900neo with 7.39%, Boeing 787-9 Dreamliner with 5.68%, and Boeing 777-300ER with 3.81%.
What is the most popular airline from Seattle to Dublin?
Based on momondo bookings for flights between Seattle and Dublin, the leading airline is Aer Lingus, making up 60% of the total bookings. Other popular airlines include Icelandair with 20%, American Airlines with 6%, and British Airways with 3%.

Best airlines flying from Seattle to Dublin

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $101	Free Cancellation	Rating 7.2 2,902 reviews	Search JetBlue flights
Air Canada	PriceFrom $341	Free Cancellation	Rating 7.1 10,562 reviews	Search Air Canada flights
Icelandair	PriceFrom $356	Free Cancellation	Rating 7.0 592 reviews	Search Icelandair flights
Iberia	PriceFrom $367	Free Cancellation	Rating 7.0 3,059 reviews	Search Iberia flights
KLM	PriceFrom $405	Free Cancellation	Rating 7.7 1,435 reviews	Search KLM flights
British Airways	PriceFrom $407	Free Cancellation	Rating 6.7 7,617 reviews	Search British Airways flights
Aer Lingus	PriceFrom $409	Free Cancellation	Rating 7.2 1,412 reviews	Search Aer Lingus flights
United Airlines	PriceFrom $431	Free Cancellation	Rating 7.4 9,116 reviews	Search United Airlines flights
Scandinavian Airlines	PriceFrom $444	Free Cancellation	Rating 7.4 1,630 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $467	Free Cancellation	Rating 6.8 7,657 reviews	Search Lufthansa flights

Aer Lingus Flights From Seattle to Dublin
Aer Lingus flies from Seattle to Dublin around 4 times per week, with 1,412 momondo users rating the airline 7.2/10. The cheapest Aer Lingus deal from Seattle to Dublin in the last 72 hours was $409 (round-trip), much lower than the average airfare cost of $696 for Aer Lingus flights on this route.
American Airlines Flights From Seattle to Dublin
American Airlines (7.2/10 from 11,073 reviews) operates around 4 flights from Seattle to Dublin in any given week. The average American Airlines airfare for this route is around $935, with deals from around $531 rare but found on momondo. Referenced prices are for round-trip Seattle to Dublin flight searches in the last 72 hours.

Kilkenny

Swords

Athlone

Dundalk

Malahide

Maynooth

Mullingar

Bray

Kildare

Drogheda

Naas

Arklow

Cavan

Castleknock

Wicklow

Leixlip

Thurles

Slane

Why use momondo?

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

It is quick and easy to find Seattle to Dublin flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Dublin that suits you.

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

Yes. momondo allows you to filter the results for Seattle to Dublin flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Dublin from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Dublin from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Dublin trip

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

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Cheap flights from Seattle to Dublin from $278

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Dublin departing on 1/23. 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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Use the filters below to find and compare flights from Seattle to Dublin that are best for you.

See travel insights to Dublin from

How to get the cheapest flight ticket from Seattle to Dublin

What is the cheapest month to fly to Dublin?

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

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

At noon is the cheapest time of day to fly from Seattle to Dublin when you can find flight prices for as low as $610. Flying to Dublin at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $889.

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

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

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

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

There are 2 cabin classes available to choose from on Seattle/Tacoma Intl to Dublin 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 Seattle to Dublin flights?

You could potentially save up to 40% on your flight if you consider stops on a Seattle to Dublin flight.

How have Seattle to Dublin flight prices changed over time?

As of December 2025, prices for Seattle to Dublin flights are approximately 46% more expensive when compared to flights at the same time last year.

What airlines fly to Dublin?

Which airport is the most popular layover for flights between Seattle and Dublin?

Reykjavik (KEF) was the most common stop: 58% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Seattle to Dublin?

Flights via Helsinki (HEL) offer the lowest average round-trip price of $326.

Which layover airport has the shortest travel time from Seattle to Dublin?

Flights connecting via London (LHR) have the shortest average one-way travel time: 12h 23m.

Which layover airport has the shortest connection time from Seattle to Dublin?

Amsterdam (AMS) has the shortest average layover time for this route: 1h 33m.

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

The number of flights available between Seattle and Dublin is 2 per day as of December 2025. The most frequent departure time is 8:00PM, with 100% of daily flights leaving in the evening.

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

As of December 2025, there are 16 flights per week flying from Seattle to Dublin. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.

When to book flights from Seattle to Dublin

Cheap Seattle to Dublin (SEA to DUB) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Dublin

How far is Seattle/Tacoma Intl to Dublin by plane?

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

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

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

What documentation or ID do you need to fly to Dublin Airport?

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

What is the most popular airline from Seattle to Dublin?

Best airlines flying from Seattle to Dublin

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

Aer Lingus Flights From Seattle to Dublin

American Airlines Flights From Seattle to Dublin

Traveling to a place near Dublin?

Why use momondo?

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

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

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

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

An easier way to manage your Dublin trip

We make it super easy to schedule, organize 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 Ireland

Airports servicing Ireland