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Cheap flights from Seattle to Ireland from $169

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 7/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:30 pm - 2:40 pm
SEA
-
ORK
17h 10m
1 stop
Delta Logo
5:45 am - 7:05 pm
ORK
-
SEA
21h 20m
2 stops
$706Delta
Tue, Oct 20 - Mon, Nov 2
Delta Logo
11:15 am - 2:40 pm
SEA
-
ORK
19h 25m
2 stops
Delta Logo
5:45 am - 4:35 pm
ORK
-
SEA
18h 50m
2 stops
$710Delta
Tue, Oct 20 - Mon, Nov 2
KLM Logo
1:30 pm - 2:40 pm
SEA
-
ORK
17h 10m
1 stop
KLM Logo
3:25 pm - 11:25 am
ORK
-
SEA
28h 00m
1 stop
$716KLM
Tue, Oct 20 - Mon, Nov 2
United Airlines Logo
7:30 am - 10:15 am
SEA
-
SNN
18h 45m
1 stop
United Airlines Logo
12:30 pm - 9:55 pm
SNN
-
SEA
17h 25m
1 stop
$770United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
10:42 am - 10:15 am
SEA
-
SNN
15h 33m
2 stops
United Airlines Logo
12:30 pm - 11:27 am
SNN
-
SEA
30h 57m
2 stops
$775United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
7:30 am - 10:15 am
SEA
-
SNN
18h 45m
1 stop
United Airlines Logo
9:30 am - 11:04 pm
SNN
-
SEA
21h 34m
2 stops
$804United Airlines
Mon, Aug 3 - Wed, Aug 19
JetBlue Logo
11:45 am - 8:20 am
SEA
-
DUB
12h 35m
1 stop
JetBlue Logo
10:40 am - 10:54 pm
DUB
-
SEA
20h 14m
1 stop
$947JetBlue
Wed, Jul 15 - Wed, Jul 22
Air Canada Logo
7:20 pm - 7:45 am
SEA
-
DUB
28h 25m
1 stop
Air Canada Logo
8:00 am - 9:17 am
DUB
-
SEA
32h 17m
2 stops
$952Air Canada
Mon, Oct 19 - Fri, Oct 30
Icelandair Logo
7:00 pm - 11:05 am
SEA
-
DUB
32h 05m
1 stop
Icelandair Logo
12:15 pm - 11:45 am
DUB
-
SEA
31h 30m
1 stop
$955Icelandair
Wed, Jul 15 - Wed, Jul 22
Air Canada Logo
7:20 pm - 8:15 am
SEA
-
DUB
28h 55m
2 stops
Air Canada Logo
9:50 am - 2:22 pm
DUB
-
SEA
12h 32m
1 stop
$956Air Canada
Sat, Oct 3 - Wed, Oct 21

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JetBlue flights from Seattle to Ireland

Our best JetBlue deals on Seattle to Ireland flight tickets
JetBlue
Jul 15
SEA11:45 amSeattle/Tacoma Intl
12h 35m
1 stop
DUB8:20 amDublin
Jul 22
DUB10:40 amDublin
20h 14m
1 stop
SEA10:54 pmSeattle/Tacoma Intl
$947
JetBlue
Jul 10
SEA11:45 amSeattle/Tacoma Intl
12h 35m
1 stop
DUB8:20 amDublin
Jul 21
DUB10:40 amDublin
20h 14m
1 stop
SEA10:54 pmSeattle/Tacoma Intl
$966
JetBlue
Jul 25
SEA10:10 pmSeattle/Tacoma Intl
26h 50m
1 stop
DUB9:00 amDublin
Aug 4
DUB10:40 amDublin
20h 14m
1 stop
SEA10:54 pmSeattle/Tacoma Intl
$971

Air Canada flights from Seattle to Ireland

Our best Air Canada deals on Seattle to Ireland flight tickets
Air Canada
Oct 19
SEA7:20 pmSeattle/Tacoma Intl
28h 25m
1 stop
DUB7:45 amDublin
Oct 30
DUB8:00 amDublin
32h 17m
2 stops
SEA9:17 amSeattle/Tacoma Intl
$952
Air Canada
Oct 3
SEA7:20 pmSeattle/Tacoma Intl
28h 55m
2 stops
DUB8:15 amDublin
Oct 21
DUB9:50 amDublin
12h 32m
1 stop
SEA2:22 pmSeattle/Tacoma Intl
$956
Air Canada
Sep 12
SEA5:40 amSeattle/Tacoma Intl
18h 05m
1 stop
DUB7:45 amDublin
Sep 19
DUB9:20 amDublin
32h 32m
2 stops
SEA9:52 amSeattle/Tacoma Intl
$957

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 June 21, 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

Cheapest round-trip

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 10/20

1:30 pm-2:40 pm

1 stop17h 10m

Cork

Mon 11/2

5:45 am-7:05 pm

2 stops21h 20m

$706

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 10/20

11:15 am-2:40 pm

2 stops19h 25m

Cork

Mon 11/2

5:45 am-4:35 pm

2 stops18h 50m

$710

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Tue 10/20

1:30 pm-2:40 pm

1 stop17h 10m

Cork

Mon 11/2

3:25 pm-11:25 am

1 stop28h 00m

$716

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 9/22

7:30 am-10:15 am

1 stop18h 45m

Shannon

Tue 9/29

12:30 pm-9:55 pm

1 stop17h 25m

$770

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Tue 9/22

10:42 am-10:15 am

2 stops15h 33m

Shannon

Tue 9/29

12:30 pm-11:27 am

2 stops30h 57m

$775

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Mon 8/3

7:30 am-10:15 am

1 stop18h 45m

Shannon

Wed 8/19

9:30 am-11:04 pm

2 stops21h 34m

$804
Quickest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 7/15

11:45 am-8:20 am

1 stop12h 35m

Dublin

Wed 7/22

10:40 am-10:54 pm

1 stop20h 14m

$947

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 10/19

7:20 pm-7:45 am

1 stop28h 25m

Dublin

Fri 10/30

8:00 am-9:17 am

2 stops32h 17m

$952

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 7/15

7:00 pm-11:05 am

1 stop32h 05m

Dublin

Wed 7/22

12:15 pm-11:45 am

1 stop31h 30m

$955

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 10/3

7:20 pm-8:15 am

2 stops28h 55m

Dublin

Wed 10/21

9:50 am-2:22 pm

1 stop12h 32m

$956

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, August 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 $226. If you aren’t able to travel to Ireland during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $300.

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 Wednesday when prices can be found for as low as $687. 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 $921. 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 $739. 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 $748.

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 from Seattle 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 $633 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 $521 on momondo.

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

There are 2 cabin classes available to choose from on Seattle 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

$533

Fastest flight time

9h 05m

Direct flights

Every day

Airports in Ireland

77 airports
The best one-way flight to Ireland from Seattle in the past 72 hours is $533. The best round-trip flight deal from Seattle to Ireland found on momondo in the last 72 hours is $1,000.
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland every day.
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?

  • 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
7.1
2,996 reviews
Search JetBlue flights
Air CanadaPriceFrom $341Free CancellationRating
7.1
11,238 reviews
Search Air Canada flights
United AirlinesPriceFrom $341Free CancellationRating
7.4
9,875 reviews
Search United Airlines flights
IcelandairPriceFrom $345Free CancellationRating
7.0
682 reviews
Search Icelandair flights
IberiaPriceFrom $367Free CancellationRating
7.0
3,245 reviews
Search Iberia flights
Aer LingusPriceFrom $386Free CancellationRating
7.3
1,613 reviews
Search Aer Lingus flights
British AirwaysPriceFrom $395Free CancellationRating
6.7
8,064 reviews
Search British Airways flights
DeltaPriceFrom $404Free CancellationRating
7.8
8,421 reviews
Search Delta flights
KLMPriceFrom $405Free CancellationRating
7.8
1,530 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $444Free CancellationRating
7.4
1,846 reviews
Search Scandinavian Airlines 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

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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 $320
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Flights to Corkfrom $614
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Flights to Milltown (Kerry)from $726
Flights to Donegalfrom $793