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

12 flights are operational weekly from Seattle to Ireland as of April 2026. The most popular departure day for this route is Mon, with 33% of flights per week taking off on this day.

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

1 flights are operational daily from Seattle to Ireland as of April 2026. The most popular departure time for this route is 7:00PM, with 100% of flights per day taking off in the evening.

What airlines fly to Ireland?

Aer Lingus, Icelandair and American Airlines are the top three most popular airlines that fly to Ireland from Seattle according to our data. Aer Lingus is the first choice among our users, with 69% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 13 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

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

United Airlines, Aer Lingus, and Lufthansa are the most popular carriers operating from Seattle/Tacoma Intl to Ireland

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

Prices for flights from Seattle/Tacoma Intl Airport to Ireland are refreshed on a daily basis.

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

As of April 2026, there are 13 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Ireland.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Ireland.

What documentation or ID do you need to fly to Ireland?

The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$252 Cheap Flights from Seattle to Ireland in 2026

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Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:55 pm - 9:25 am

SEA

DUB

33h 30m

1 stop

12:40 pm - 1:45 pm

DUB

SEA

33h 05m

1 stop

$645Scandinavian Airlines

Fri, Sep 25 - Mon, Sep 28

7:10 pm - 11:05 pm

SEA

DUB

19h 55m

1 stop

5:45 am - 5:15 pm

DUB

SEA

19h 30m

1 stop

$651Turkish Airlines

Sun, Sep 20 - Thu, Oct 1

3:55 pm - 9:25 am

SEA

DUB

33h 30m

1 stop

7:15 pm - 1:45 pm

DUB

SEA

50h 30m

2 stops

$652Scandinavian Airlines

Fri, Aug 28 - Sun, Sep 6

7:10 pm - 11:05 pm

SEA

DUB

19h 55m

1 stop

5:05 pm - 5:15 pm

DUB

SEA

32h 10m

1 stop

$653Turkish Airlines

Tue, Apr 28 - Tue, May 5

7:00 am - 7:30 am

SEA

SNN

16h 30m

1 stop

9:30 am - 10:42 pm

SNN

SEA

21h 12m

1 stop

$753United Airlines

Wed, Sep 2 - Thu, Sep 10

7:00 am - 10:15 am

SEA

SNN

19h 15m

2 stops

9:30 am - 6:59 pm

SNN

SEA

17h 29m

1 stop

$757United Airlines

Tue, Aug 4 - Tue, Aug 25

7:20 am - 11:10 am

SEA

SNN

19h 50m

1 stop

1:05 pm - 10:16 pm

SNN

SEA

17h 11m

1 stop

$770Delta

Sun, Aug 30 - Tue, Sep 8

6:00 am - 11:10 am

SEA

SNN

21h 10m

2 stops

1:05 pm - 11:26 pm

SNN

SEA

18h 21m

2 stops

$774Delta

Sun, Aug 30 - Tue, Sep 15

2:10 pm - 4:30 pm

SEA

ORK

18h 20m

1 stop

4:55 pm - 11:55 am

ORK

SEA

27h 00m

1 stop

$890Lufthansa

Tue, Sep 1 - Tue, Sep 8

1:45 pm - 4:35 pm

SEA

ORK

18h 50m

1 stop

10:50 am - 11:42 am

ORK

SEA

32h 52m

1 stop

$1,109KLM

Mon, May 18 - Mon, May 25

Scandinavian Airlines flights from Seattle to Ireland

Our best Scandinavian Airlines deals on Seattle to Ireland flight tickets

Scandinavian Airlines

Sep 25

SEA3:55 pmSeattle/Tacoma Intl

33h 30m

1 stop

DUB9:25 amDublin

Sep 28

DUB12:40 pmDublin

33h 05m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

$645

Scandinavian Airlines

Aug 28

SEA3:55 pmSeattle/Tacoma Intl

33h 30m

1 stop

DUB9:25 amDublin

Sep 6

DUB7:15 pmDublin

50h 30m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$652

Scandinavian Airlines

May 5

SEA11:40 amSeattle/Tacoma Intl

40h 10m

2 stops

DUB11:50 amDublin

May 23

DUB10:15 amDublin

35h 30m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

$655

Turkish Airlines flights from Seattle to Ireland

Our best Turkish Airlines deals on Seattle to Ireland flight tickets

Turkish Airlines

Sep 20

SEA7:10 pmSeattle/Tacoma Intl

19h 55m

1 stop

DUB11:05 pmDublin

Oct 1

DUB5:45 amDublin

19h 30m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$651

Turkish Airlines

Apr 28

SEA7:10 pmSeattle/Tacoma Intl

19h 55m

1 stop

DUB11:05 pmDublin

May 5

DUB5:05 pmDublin

32h 10m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$653

Turkish Airlines

May 6

SEA7:10 pmSeattle/Tacoma Intl

19h 55m

1 stop

DUB11:05 pmDublin

May 21

DUB5:45 amDublin

19h 30m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$660

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 9/25

3:55 pm-9:25 am

1 stop33h 30m

Dublin

Mon 9/28

12:40 pm-1:45 pm

1 stop33h 05m

$645

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 9/20

7:10 pm-11:05 pm

1 stop19h 55m

Dublin

Thu 10/1

5:45 am-5:15 pm

1 stop19h 30m

$651

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 8/28

3:55 pm-9:25 am

1 stop33h 30m

Dublin

Sun 9/6

7:15 pm-1:45 pm

2 stops50h 30m

$652

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 4/28

7:10 pm-11:05 pm

1 stop19h 55m

Dublin

Tue 5/5

5:05 pm-5:15 pm

1 stop32h 10m

$653

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 9/2

7:00 am-7:30 am

1 stop16h 30m

Shannon

Thu 9/10

9:30 am-10:42 pm

1 stop21h 12m

$753

Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 8/4

7:00 am-10:15 am

2 stops19h 15m

Shannon

Tue 8/25

9:30 am-6:59 pm

1 stop17h 29m

$757

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/30

7:20 am-11:10 am

1 stop19h 50m

Shannon

Tue 9/8

1:05 pm-10:16 pm

1 stop17h 11m

$770

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Sun 8/30

6:00 am-11:10 am

2 stops21h 10m

Shannon

Tue 9/15

1:05 pm-11:26 pm

2 stops18h 21m

$774

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 9/1

2:10 pm-4:30 pm

1 stop18h 20m

Cork

Tue 9/8

4:55 pm-11:55 am

1 stop27h 00m

$890

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 5/18

1:45 pm-4:35 pm

1 stop18h 50m

Cork

Mon 5/25

10:50 am-11:42 am

1 stop32h 52m

$1,109

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Ireland

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

Other information

What is the cheapest month to fly to Ireland?

In general, February is the cheapest month to fly from Seattle to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $466. If you aren’t able to travel to Ireland during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $468.

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

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $690. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to Ireland on a Saturday will generally be more expensive and average around $858. 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 Ireland?

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from Seattle to Ireland in the evening for as low as $698. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the afternoon when prices are around $790.

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

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

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

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $610 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as $500 on momondo.

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

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

You could potentially save up to 26% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

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

Best Price Found	$386
Fastest flight time	9h 05m
Direct flights	Mon, Tue, Wed, Fri, Sat and Sun
Airports in Ireland	77 airports

The best one-way flight to Ireland from Seattle in the past 72 hours is $386. The best round-trip flight deal from Seattle to Ireland found on momondo in the last 72 hours is $818.

The fastest flight from Seattle to Ireland takes 9h 05m

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

There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).

Search flight deals

Frequently asked questions about flying from Seattle to Ireland

When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?
Prices for flights from Seattle/Tacoma Intl Airport to Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Ireland?
As of April 2026, there are 13 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Ireland.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Ireland?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Ireland is Airbus A330-200 (65.02% of total bookings). The next most popular plane models are Airbus A330-900neo (9.88%), Boeing 787-10 Dreamliner (5.72%), and Boeing 787-9 Dreamliner (3.32%).

Best airlines flying from Seattle to Ireland

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

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom $101	Free Cancellation	Rating 7.2 2,917 reviews	Search JetBlue flights
Air Canada	PriceFrom $341	Free Cancellation	Rating 7.1 10,897 reviews	Search Air Canada flights
Icelandair	PriceFrom $347	Free Cancellation	Rating 7.0 631 reviews	Search Icelandair flights
Iberia	PriceFrom $367	Free Cancellation	Rating 7.0 3,165 reviews	Search Iberia flights
Aer Lingus	PriceFrom $394	Free Cancellation	Rating 7.2 1,499 reviews	Search Aer Lingus flights
KLM	PriceFrom $405	Free Cancellation	Rating 7.7 1,491 reviews	Search KLM flights
United Airlines	PriceFrom $407	Free Cancellation	Rating 7.4 9,548 reviews	Search United Airlines flights
British Airways	PriceFrom $407	Free Cancellation	Rating 6.7 7,857 reviews	Search British Airways flights
Scandinavian Airlines	PriceFrom $444	Free Cancellation	Rating 7.3 1,744 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $456	Free Cancellation	Rating 6.8 7,894 reviews	Search Lufthansa flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Ireland. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. All flights to Ireland from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from Seattle.

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

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from Seattle and alert you when they change.

An easier way to manage your Ireland 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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Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $490

Flights to Shannon, Clarefrom $558

Flights to Corkfrom $597

Flights to Milltown (Kerry)from $686

Flights to Knockfrom $827

Flights to Donegalfrom $971

Cheap flights from Seattle to Ireland from $252

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 Ireland departing on 5/6. 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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Scandinavian Airlines flights from Seattle to Ireland

Our best Scandinavian Airlines deals on Seattle to Ireland flight tickets

Turkish Airlines flights from Seattle to Ireland

Our best Turkish Airlines deals on Seattle to Ireland flight tickets

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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

What is the cheapest month to fly to Ireland?

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

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

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

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

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

Can stopping save me money on Seattle to Ireland flights?

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

What airlines fly to Ireland?

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

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

Cheap Seattle to Ireland flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Ireland

Frequently asked questions about flying from Seattle to Ireland

Best airlines flying from Seattle to Ireland

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

Why use momondo?

An easier way to manage your Ireland 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

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo

Seattle flight routes

According to popular flight searches on momondo this year

Ireland flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Ireland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Ireland

List of cabin classes available on flights landing in Ireland. Availability may vary depending on flight origin and airline.

Complete your trip to Ireland

Explore popular destinations other users love

According to popular flight searches on momondo this year