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

3 flights are operational weekly from Seattle to Ireland as of April 2026. The most popular departure day for this route is Wed, with 100% of flights per week taking off on this day.

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

Delta, KLM, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Ireland

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 68% 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.

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.

$245 Cheap Flights from Seattle to Ireland in 2026

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Find the cheapest flights from Seattle to Ireland

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:40 pm - 1:00 am

SEA

DUB

25h 20m

3 stops

10:40 am - 10:05 am

DUB

SEA

31h 25m

2 stops

$686Multiple Airlines

週二, 5月 5 - 週二, 5月 12

11:44 pm - 6:05 pm

SEA

DUB

34h 21m

2 stops

10:45 am - 10:38 pm

DUB

SEA

43h 53m

2 stops

$687TAP AIR PORTUGAL

週二, 9月 1 - 週三, 9月 30

11:44 pm - 6:05 pm

SEA

DUB

34h 21m

2 stops

5:30 am - 10:38 pm

DUB

SEA

49h 08m

2 stops

$688TAP AIR PORTUGAL

週二, 9月 1 - 週五, 9月 18

3:55 pm - 10:10 am

SEA

DUB

34h 15m

2 stops

7:50 pm - 1:45 pm

DUB

SEA

25h 55m

2 stops

$689Scandinavian Airlines

週日, 9月 13 - 週一, 9月 21

7:10 pm - 11:05 pm

SEA

DUB

19h 55m

1 stop

5:35 am - 5:15 pm

DUB

SEA

19h 40m

1 stop

$690Turkish Airlines

週二, 4月 28 - 週二, 5月 5

12:00 pm - 11:50 am

SEA

DUB

39h 50m

2 stops

12:40 pm - 1:45 pm

DUB

SEA

33h 05m

1 stop

$692Scandinavian Airlines

週三, 8月 19 - 週五, 9月 4

7:35 pm - 7:30 am

SEA

SNN

27h 55m

2 stops

9:30 am - 5:45 pm

SNN

SEA

16h 15m

2 stops

$758United Airlines

週日, 9月 6 - 週二, 9月 8

7:01 am - 7:30 am

SEA

SNN

16h 29m

1 stop

9:30 am - 3:36 pm

SNN

SEA

14h 06m

1 stop

$770United Airlines

週二, 8月 4 - 週二, 8月 25

1:56 pm - 4:30 pm

SEA

ORK

18h 34m

2 stops

5:10 pm - 11:55 am

ORK

SEA

26h 45m

1 stop

$1,070Lufthansa

週三, 9月 16 - 週日, 9月 27

2:10 pm - 4:30 pm

SEA

ORK

18h 20m

1 stop

5:10 pm - 11:55 am

ORK

SEA

26h 45m

1 stop

$1,072Lufthansa

週三, 9月 16 - 週日, 9月 27

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Scandinavian Airlines flights from Seattle to Ireland

Our best Scandinavian Airlines deals on Seattle to Ireland flight tickets

Scandinavian Airlines

Sep 13

SEA3:55 pmSeattle/Tacoma Intl

34h 15m

2 stops

DUB10:10 amDublin

Sep 21

DUB7:50 pmDublin

25h 55m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$689

Scandinavian Airlines

Aug 19

SEA12:00 pmSeattle/Tacoma Intl

39h 50m

2 stops

DUB11:50 amDublin

Sep 4

DUB12:40 pmDublin

33h 05m

1 stop

SEA1:45 pmSeattle/Tacoma Intl

$692

Scandinavian Airlines

Sep 4

SEA3:55 pmSeattle/Tacoma Intl

33h 30m

1 stop

DUB9:25 amDublin

Sep 23

DUB11:40 amDublin

58h 05m

2 stops

SEA1:45 pmSeattle/Tacoma Intl

$693

Turkish Airlines flights from Seattle to Ireland

Our best Turkish Airlines deals on Seattle to Ireland flight tickets

Turkish Airlines

Apr 28

SEA7:10 pmSeattle/Tacoma Intl

19h 55m

1 stop

DUB11:05 pmDublin

May 5

DUB5:35 amDublin

19h 40m

1 stop

SEA5:15 pmSeattle/Tacoma Intl

$690

Turkish Airlines

Oct 5

SEA7:10 pmSeattle/Tacoma Intl

36h 50m

1 stop

DUB4:00 pmDublin

Nov 3

DUB10:40 amDublin

39h 25m

1 stop

SEA6:05 pmSeattle/Tacoma Intl

$697

Turkish Airlines

Oct 5

SEA7:10 pmSeattle/Tacoma Intl

36h 50m

1 stop

DUB4:00 pmDublin

Nov 3

DUB4:30 pmDublin

33h 35m

1 stop

SEA6:05 pmSeattle/Tacoma Intl

$700

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

週二 5/5

3:40 pm-1:00 am

3 stops25h 20m

Dublin

週二 5/12

10:40 am-10:05 am

2 stops31h 25m

$686

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

週二 9/1

11:44 pm-6:05 pm

2 stops34h 21m

Dublin

週三 9/30

10:45 am-10:38 pm

2 stops43h 53m

$687

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

週二 9/1

11:44 pm-6:05 pm

2 stops34h 21m

Dublin

週五 9/18

5:30 am-10:38 pm

2 stops49h 08m

$688

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

週日 9/13

3:55 pm-10:10 am

2 stops34h 15m

Dublin

週一 9/21

7:50 pm-1:45 pm

2 stops25h 55m

$689

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

週二 4/28

7:10 pm-11:05 pm

1 stop19h 55m

Dublin

週二 5/5

5:35 am-5:15 pm

1 stop19h 40m

$690

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

週三 8/19

12:00 pm-11:50 am

2 stops39h 50m

Dublin

週五 9/4

12:40 pm-1:45 pm

1 stop33h 05m

$692

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

週日 9/6

7:35 pm-7:30 am

2 stops27h 55m

Shannon

週二 9/8

9:30 am-5:45 pm

2 stops16h 15m

$758

Quickest round-trip

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

週二 8/4

7:01 am-7:30 am

1 stop16h 29m

Shannon

週二 8/25

9:30 am-3:36 pm

1 stop14h 06m

$770

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

週三 9/16

1:56 pm-4:30 pm

2 stops18h 34m

Cork

週日 9/27

5:10 pm-11:55 am

1 stop26h 45m

$1,070

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

週三 9/16

2:10 pm-4:30 pm

1 stop18h 20m

Cork

週日 9/27

5:10 pm-11:55 am

1 stop26h 45m

$1,072

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 $682. 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 $862. 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 $703. 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 $778.

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 $614 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 $501 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 32% 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	$434
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 $434. The best round-trip flight deal from Seattle to Ireland found on momondo in the last 72 hours is $845.

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 (63.98% of total bookings). The next most popular plane models are Airbus A330-900neo (12.47%), Boeing 787-10 Dreamliner (5.27%), and Boeing 787-9 Dreamliner (3.14%).

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 2,939 reviews	Search JetBlue flights
Air Canada	PriceFrom $341	Free Cancellation	Rating 7.1 10,933 reviews	Search Air Canada flights
Icelandair	PriceFrom $347	Free Cancellation	Rating 7.0 634 reviews	Search Icelandair flights
Iberia	PriceFrom $367	Free Cancellation	Rating 7.0 3,182 reviews	Search Iberia flights
Aer Lingus	PriceFrom $393	Free Cancellation	Rating 7.3 1,512 reviews	Search Aer Lingus flights
KLM	PriceFrom $405	Free Cancellation	Rating 7.8 1,502 reviews	Search KLM flights
United Airlines	PriceFrom $407	Free Cancellation	Rating 7.4 9,603 reviews	Search United Airlines flights
British Airways	PriceFrom $407	Free Cancellation	Rating 6.7 7,891 reviews	Search British Airways flights
Scandinavian Airlines	PriceFrom $444	Free Cancellation	Rating 7.3 1,750 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $456	Free Cancellation	Rating 6.8 7,930 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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Find better results for your trip to Ireland

Popular cities

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Complete your trip

Feeling lucky

Popular cities in Ireland

Flights to Dublinfrom $472

Flights to Shannon, Clarefrom $476

Flights to Corkfrom $604

Flights to Milltown (Kerry)from $718

Flights to Knockfrom $829

Flights to Donegalfrom $896

Cheap flights from Seattle to Ireland from $245

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

momondo Fare Finder

Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

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 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