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$245+ Cheap flights from Seattle (SEA) to Ireland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
may. 10 — may. 171
dom. 5/10
dom. 5/17
1 adult, Economy
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Cheap flight deals from Seattle to Ireland

Cheapest flights from Seattle to Ireland
Explore the most affordable flight options available from Seattle to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 10, 2026.

This FlightHub deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/67:10 pm
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
jue. 5/145:45 am
DUB
-
SEA
1 stop19h 30m
Turkish Airlines
Deal found 4/5$653
This FlightHub deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1611:55 pm
SEA
-
DUB
2 stops26h 05m
TAP AIR PORTUGAL
dom. 9/276:50 pm
DUB
-
SEA
2 stops35h 48m
TAP AIR PORTUGAL
Deal found 4/5$654
This FlightHub deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/511:40 am
SEA
-
DUB
2 stops40h 10m
Scandinavian Airlines
sáb. 5/2310:15 am
DUB
-
SEA
1 stop35h 30m
Scandinavian Airlines
Deal found 4/5$655
This FlightHub deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/611:55 pm
SEA
-
DUB
2 stops40h 10m
TAP AIR PORTUGAL
mié. 10/1410:45 am
DUB
-
SEA
2 stops43h 53m
TAP AIR PORTUGAL
Deal found 4/6$660
This Cheapflightsfares deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/213:55 pm
SEA
-
DUB
2 stops32h 05m
Scandinavian Airlines
lun. 8/317:50 pm
DUB
-
SEA
2 stops25h 55m
Scandinavian Airlines
Deal found 4/5$666
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/223:40 pm
SEA
-
DUB
2 stops18h 15m
Multiple Airlines
mié. 4/299:40 am
DUB
-
SEA
2 stops56h 00m
Multiple Airlines
Deal found 4/6$667
This Turkish Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/17:10 pm
SEA
-
DUB
1 stop30h 25m
Turkish Airlines
mar. 9/85:05 pm
DUB
-
SEA
1 stop32h 10m
Turkish Airlines
Deal found 4/7$670
This FlightHub deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/912:00 pm
SEA
-
DUB
2 stops39h 50m
Scandinavian Airlines
sáb. 9/1910:15 am
DUB
-
SEA
1 stop35h 30m
Scandinavian Airlines
Deal found 4/6$671
This Turkish Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/57:10 pm
SEA
-
DUB
1 stop30h 25m
Turkish Airlines
mar. 5/125:05 pm
DUB
-
SEA
1 stop32h 10m
Turkish Airlines
Deal found 4/7$672
This Mytrip deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/273:40 pm
SEA
-
DUB
2 stops24h 55m
Multiple Airlines
lun. 5/1110:40 am
DUB
-
SEA
3 stops35h 40m
Multiple Airlines
Deal found 4/5$673
This Scandinavian Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/223:55 pm
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
lun. 8/317:50 pm
DUB
-
SEA
2 stops25h 55m
Scandinavian Airlines
Deal found 4/7$674
This FlightHub deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/111:44 pm
SEA
-
DUB
2 stops34h 21m
TAP AIR PORTUGAL
lun. 9/285:30 am
DUB
-
SEA
2 stops25h 08m
TAP AIR PORTUGAL
Deal found 4/5$676

Find flight deals from Seattle to Ireland

Keep the following information in mind while searching for Seattle to Ireland flight deals. Data was last updated abril 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$653
(FlightHub)

One-way from

$245
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$662

Good round-trip deal

$818 or less

Good one-way deal

$386 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Dublin flights.
Search Deals
From Seattle/Tacoma Intl to Ireland
Search Deals
One-way flight from Seattle/Tacoma Intl to Ireland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Ireland.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Ireland.
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated abril 10, 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

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

mié. 10/7

7:10 pm-11:05 pm

1 stop19h 55m

Dublin

mié. 10/14

5:05 pm-5:15 pm

1 stop32h 10m

$670

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

dom. 9/6

7:00 am-7:30 am

1 stop16h 30m

Shannon

jue. 9/10

9:30 am-6:59 pm

1 stop17h 29m

$753

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

mar. 8/4

8:30 am-10:15 am

2 stops17h 45m

Shannon

mar. 8/25

9:30 am-7:08 pm

2 stops17h 38m

$807

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

lun. 5/4

6:00 am-8:20 am

2 stops18h 20m

Dublin

mar. 5/12

5:55 am-4:30 pm

1 stop18h 35m

$821

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

mié. 5/6

7:15 am-8:15 am

2 stops17h 00m

Dublin

mié. 5/13

5:55 am-11:42 am

1 stop13h 47m

$821

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

mar. 4/28

8:42 am-11:05 pm

2 stops30h 23m

Dublin

mar. 5/5

5:35 am-5:15 pm

1 stop19h 40m

$830

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

mié. 4/22

9:51 am-10:45 am

2 stops16h 54m

Dublin

jue. 4/30

1:15 pm-10:00 am

2 stops28h 45m

$834

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

dom. 8/2

7:01 am-7:30 am

1 stop16h 29m

Shannon

dom. 8/23

9:30 am-10:42 pm

1 stop21h 12m

$853

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

lun. 8/3

7:54 pm-7:30 am

2 stops27h 36m

Shannon

lun. 8/24

9:30 am-3:36 pm

1 stop14h 06m

$857

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

mié. 8/5

7:40 am-10:40 am

1 stop19h 00m

Dublin

mié. 8/19

9:50 am-2:22 pm

1 stop12h 32m

$858

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/5

Showing 1-10 of 49 resultsSorted by cheapest first
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5

Best time to book a flight from Seattle to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Ireland

What is the cheapest month to book a flight from Seattle to Ireland?

Currently, February is the cheapest month in which you can book a flight from Seattle to Ireland (average of $306). Flying from Seattle to Ireland in June is currently the most expensive (average of $539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to IE?

Find hourly flight availability from Seattle to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 10, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Ireland as you normally would.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ireland. Reviews last updated abril 10, 2026.
Read reviews from past customers who have flown Delta,Aer Lingus, andAmerican Airlines from Seattle to Ireland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,402 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,402 reviews
Delta
7.9
Good
8,402 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Aer Lingus
7.2
Good
1,502 reviews
Delta
7.9
Good
8,402 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,564 reviews
Delta
7.9
Good
8,402 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.0
Good
632 reviews
Delta
7.9
Good
8,402 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,870 reviews
Delta
7.9
Good
8,402 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.8

Overall

7.9

Boarding

8.1

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Ireland?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl (SEA) is the airport most travelers will use when flying to Ireland from Seattle.

  • How popular is this Seattle to Ireland flight route?

    This flight path from Seattle/Tacoma Intl to Ireland was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Ireland?

    There are many flights that can get you from Seattle to Ireland in 16h 30m. Fly via Turkish Airlines, United Airlines, or Delta to get the fastest option. Airlines will cover a distance of 4485 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Seattle to Ireland one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $174. WestJet flights start at $212 while deals on British Airways start at $218 one-way.

  • What are the most popular routes from Seattle to Ireland?

    The most popular flight routes from Seattle to Ireland are Seattle/Tacoma Intl - Dublin, Seattle/Tacoma Intl - Shannon and Seattle/Tacoma Intl - Cork.

  • What are the most reliable airlines from Seattle to Ireland?

    No one likes to see their flight delayed. When booking a flight from Seattle to Ireland consider choosing American Airlines (81%), Aer Lingus (81%) or Iberia (81%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Ireland?

    Looking for the cheapest flight from Seattle to Ireland? While on average our users pay $1,731, our data indicates the cheapest price to be $334. The most popular route (Seattle/Tacoma Intl - Dublin), is priced around $567.

  • Can I find deals for flights from Seattle to Ireland that include hotel bookings?

    Yes. In addition to deals on Seattle to Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Ireland.

  • Can I find deals for business class flights from Seattle to Ireland?

    Yes. Cheapflights offers flight deals from Seattle to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Ireland?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Ireland (average of $306). Flying from Seattle to Ireland in June is currently the most expensive (average of $539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Seattle to Ireland

Discover the top 10 airlines that operate flights from Seattle to Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$101Average$621FlexibilityNo cancel feeOn-time62%
Air CanadaCheapest$341Average$581FlexibilityNo cancel feeOn-time67%
IcelandairCheapest$347Average$487FlexibilityNo cancel feeOn-time76%
IberiaCheapest$367Average$596FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$394Average$662FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$405Average$667FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$407Average$723FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$407Average$820FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$444Average$508FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$456Average$605FlexibilityNo cancel feeOn-time76%

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