Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Ireland from $209

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 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:40 pm - 5:55 pm
SEA
-
DUB
18h 15m
2 stops
Multiple Airlines Logo
9:10 am - 8:40 pm
DUB
-
SEA
19h 30m
2 stops
$496Multiple Airlines
Tue, Apr 14 - Fri, Apr 24
Scandinavian Airlines Logo
3:55 pm - 10:25 am
SEA
-
DUB
34h 30m
2 stops
Scandinavian Airlines Logo
8:00 pm - 1:45 pm
DUB
-
SEA
25h 45m
2 stops
$498Scandinavian Airlines
Sat, Aug 29 - Sat, Sep 5
Scandinavian Airlines Logo
3:55 pm - 9:25 am
SEA
-
DUB
33h 30m
1 stop
Scandinavian Airlines Logo
7:50 pm - 1:45 pm
DUB
-
SEA
25h 55m
2 stops
$500Scandinavian Airlines
Fri, Aug 14 - Thu, Aug 20
Scandinavian Airlines Logo
3:55 pm - 9:25 am
SEA
-
DUB
33h 30m
1 stop
Scandinavian Airlines Logo
10:15 am - 1:45 pm
DUB
-
SEA
35h 30m
1 stop
$502Scandinavian Airlines
Fri, Aug 14 - Sat, Aug 22
Scandinavian Airlines Logo
3:55 pm - 10:55 am
SEA
-
DUB
35h 00m
2 stops
Scandinavian Airlines Logo
8:00 pm - 1:45 pm
DUB
-
SEA
25h 45m
2 stops
$503Scandinavian Airlines
Sun, Aug 16 - Sat, Aug 22
United Airlines Logo
12:08 pm - 10:15 am
SEA
-
SNN
14h 07m
1 stop
United Airlines Logo
12:30 pm - 9:06 pm
SNN
-
SEA
16h 36m
2 stops
$577United Airlines
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
7:00 am - 10:15 am
SEA
-
SNN
19h 15m
2 stops
United Airlines Logo
12:30 pm - 11:12 pm
SNN
-
SEA
18h 42m
2 stops
$580United Airlines
Tue, Apr 14 - Tue, Apr 21
Delta Logo
4:00 pm - 10:20 am
SEA
-
ORK
34h 20m
2 stops
Delta Logo
10:50 am - 11:40 am
ORK
-
SEA
32h 50m
1 stop
$669Delta
Mon, Apr 13 - Tue, Apr 28
Delta Logo
11:45 am - 2:40 pm
SEA
-
ORK
18h 55m
2 stops
Delta Logo
6:15 am - 11:45 am
ORK
-
SEA
13h 30m
1 stop
$670Delta
Mon, Mar 30 - Tue, Apr 7
KLM Logo
1:45 pm - 10:20 am
SEA
-
ORK
12h 35m
1 stop
KLM Logo
6:15 am - 4:30 pm
ORK
-
SEA
18h 15m
1 stop
$720KLM
Fri, Apr 17 - Fri, Apr 24

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
Apr 29
SEA3:40 pmSeattle/Tacoma Intl
13h 35m
1 stop
DUB1:15 pmDublin
May 13
DUB12:15 pmDublin
16h 25m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$596
Icelandair
Apr 26
SEA3:40 pmSeattle/Tacoma Intl
13h 35m
1 stop
DUB1:15 pmDublin
May 12
DUB2:15 pmDublin
11h 40m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$604
Icelandair
Apr 29
SEA3:40 pmSeattle/Tacoma Intl
13h 35m
1 stop
DUB1:15 pmDublin
May 13
DUB12:15 pmDublin
13h 40m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$607

Scandinavian Airlines flights from Seattle to Ireland

Our best Scandinavian Airlines deals on Seattle to Ireland flight tickets
Scandinavian Airlines
Aug 29
SEA3:55 pmSeattle/Tacoma Intl
34h 30m
2 stops
DUB10:25 amDublin
Sep 5
DUB8:00 pmDublin
25h 45m
2 stops
SEA1:45 pmSeattle/Tacoma Intl
$498
Scandinavian Airlines
Aug 14
SEA3:55 pmSeattle/Tacoma Intl
33h 30m
1 stop
DUB9:25 amDublin
Aug 20
DUB7:50 pmDublin
25h 55m
2 stops
SEA1:45 pmSeattle/Tacoma Intl
$500
Scandinavian Airlines
Aug 14
SEA3:55 pmSeattle/Tacoma Intl
33h 30m
1 stop
DUB9:25 amDublin
Aug 22
DUB10:15 amDublin
35h 30m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$502

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 4, 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 4/14

3:40 pm-5:55 pm

2 stops18h 15m

Dublin

Fri 4/24

9:10 am-8:40 pm

2 stops19h 30m

$496

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 8/29

3:55 pm-10:25 am

2 stops34h 30m

Dublin

Sat 9/5

8:00 pm-1:45 pm

2 stops25h 45m

$498

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 8/14

3:55 pm-9:25 am

1 stop33h 30m

Dublin

Thu 8/20

7:50 pm-1:45 pm

2 stops25h 55m

$500

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 8/14

3:55 pm-9:25 am

1 stop33h 30m

Dublin

Sat 8/22

10:15 am-1:45 pm

1 stop35h 30m

$502

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 8/16

3:55 pm-10:55 am

2 stops35h 00m

Dublin

Sat 8/22

8:00 pm-1:45 pm

2 stops25h 45m

$503

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

12:08 pm-10:15 am

1 stop14h 07m

Shannon

Tue 4/21

12:30 pm-9:06 pm

2 stops16h 36m

$577

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 4/14

7:00 am-10:15 am

2 stops19h 15m

Shannon

Tue 4/21

12:30 pm-11:12 pm

2 stops18h 42m

$580

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 4/13

4:00 pm-10:20 am

2 stops34h 20m

Cork

Tue 4/28

10:50 am-11:40 am

1 stop32h 50m

$669

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 3/30

11:45 am-2:40 pm

2 stops18h 55m

Cork

Tue 4/7

6:15 am-11:45 am

1 stop13h 30m

$670

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Fri 4/17

1:45 pm-10:20 am

1 stop12h 35m

Cork

Fri 4/24

6:15 am-4:30 pm

1 stop18h 15m

$720

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ireland from

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

What is the cheapest month to fly to Ireland?

In general, November 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 $468. If you aren’t able to travel to Ireland during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $486.

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 $697. 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 $873. 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 $666. 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 $833.

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 $636 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 $574 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 18% 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

$358

Fastest flight time

9h 05m

Direct flights

Mon, Tue, Wed, Thu, Sat and Sun

Airports in Ireland

77 airports
The best one-way flight to Ireland from Seattle in the past 72 hours is $358. The best round-trip flight deal from Seattle to Ireland found on momondo in the last 72 hours is $707.
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland on Monday, Tuesday, Wednesday, Thursday, 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

  • 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?

  • 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?

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
JetBluePriceFrom $101Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
Air CanadaPriceFrom $341Free CancellationRating
7.1
10,776 reviews
Search Air Canada flights
IcelandairPriceFrom $349Free CancellationRating
7.1
617 reviews
Search Icelandair flights
IberiaPriceFrom $367Free CancellationRating
7.0
3,132 reviews
Search Iberia flights
Aer LingusPriceFrom $399Free CancellationRating
7.2
1,467 reviews
Search Aer Lingus flights
KLMPriceFrom $405Free CancellationRating
7.7
1,465 reviews
Search KLM flights
British AirwaysPriceFrom $407Free CancellationRating
6.7
7,775 reviews
Search British Airways flights
United AirlinesPriceFrom $431Free CancellationRating
7.4
9,389 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $444Free CancellationRating
7.3
1,703 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $457Free CancellationRating
6.8
7,823 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 4/3
Fri 4/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom $318
Flights to Shannon, Clarefrom $394
Flights to Corkfrom $440
Flights to Milltown (Kerry)from $567
Flights to Knockfrom $649
Flights to Donegalfrom $686