Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seattle to Ireland from C$ 367

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
7 May — 14 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Ireland

Enter your travel dates to find the best prices.

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 7 April 2026.

Mon 5/107:10 p.m.
SEA
-
DUB
1 stop20h 00m
Turkish Airlines
Tue 3/114:30 p.m.
DUB
-
SEA
1 stop33h 35m
Turkish Airlines
Deal found 4/4C$ 926
Sun 4/107:10 p.m.
SEA
-
DUB
1 stop36h 50m
Turkish Airlines
Wed 11/114:50 p.m.
DUB
-
SEA
1 stop32h 15m
Turkish Airlines
Deal found 7/4C$ 928
Sun 19/47:10 p.m.
SEA
-
DUB
1 stop36h 50m
Turkish Airlines
Tue 5/510:40 a.m.
DUB
-
SEA
1 stop38h 35m
Turkish Airlines
Deal found 3/4C$ 930
Tue 1/97:10 p.m.
SEA
-
DUB
1 stop30h 25m
Turkish Airlines
Tue 8/95:05 p.m.
DUB
-
SEA
1 stop32h 10m
Turkish Airlines
Deal found 7/4C$ 932
Tue 5/57:10 p.m.
SEA
-
DUB
1 stop30h 25m
Turkish Airlines
Tue 12/55:05 p.m.
DUB
-
SEA
1 stop32h 10m
Turkish Airlines
Deal found 7/4C$ 935
Tue 1/93:55 p.m.
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Mon 14/97:50 p.m.
DUB
-
SEA
2 stops25h 55m
Scandinavian Airlines
Deal found 6/4C$ 937
Wed 6/57:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Thu 21/55:45 a.m.
DUB
-
SEA
1 stop19h 30m
Turkish Airlines
Deal found 6/4C$ 946
Sun 25/108:00 p.m.
SEA
-
DUB
1 stop19h 10m
Turkish Airlines
Mon 2/114:30 p.m.
DUB
-
SEA
1 stop33h 35m
Turkish Airlines
Deal found 5/4C$ 982
Tue 1/97:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Mon 14/95:55 a.m.
DUB
-
SEA
1 stop19h 20m
Turkish Airlines
Deal found 7/4C$ 987
Wed 9/97:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Fri 16/105:05 p.m.
DUB
-
SEA
1 stop32h 10m
Turkish Airlines
Deal found 4/4C$ 992
Thu 1/107:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Tue 10/116:25 a.m.
DUB
-
SEA
1 stop18h 40m
Turkish Airlines
Deal found 7/4C$ 993

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 7 April 2026.

Round-trip from

C$ 926

One-way from

C$ 367

Popular in

June

Cheapest in

February

Average price

C$ 921
Turkish Airlines
  • Turkish Airlines
  • 3/9-17/11
  • 2 total stops
  • 38h 05m total
  • Seattle to Ireland
Search Deals
26/4
  • 26/4
  • 3 total stops
  • 42h 20m total
  • Seattle to Ireland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 280 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 629,999 searches. Data last updated 7 April 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

Sun 4/10

7:10 p.m.-9:35 a.m.

1 stop30h 25m

Dublin

Fri 13/11

10:40 a.m.-5:05 p.m.

1 stop38h 25m

C$ 993

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 8/9

7:10 p.m.-9:35 a.m.

1 stop30h 25m

Dublin

Tue 13/10

5:05 p.m.-5:15 p.m.

1 stop32h 10m

C$ 997

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 4/5

7:10 p.m.-9:35 a.m.

1 stop30h 25m

Dublin

Thu 21/5

5:45 a.m.-5:15 p.m.

1 stop19h 30m

C$ 999

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 5/5

7:10 p.m.-11:05 p.m.

1 stop19h 55m

Dublin

Thu 21/5

5:45 a.m.-5:15 p.m.

1 stop19h 30m

C$ 999

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 3/10

7:10 p.m.-11:05 p.m.

1 stop19h 55m

Dublin

Thu 12/11

10:40 a.m.-5:05 p.m.

1 stop38h 25m

C$ 1,049

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 8/9

7:10 p.m.-11:05 p.m.

1 stop19h 55m

Dublin

Mon 19/10

5:05 p.m.-5:15 p.m.

1 stop32h 10m

C$ 1,053

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 6/5

1:21 p.m.-9:35 a.m.

2 stops36h 14m

Dublin

Wed 13/5

5:05 p.m.-5:15 p.m.

1 stop32h 10m

C$ 1,156

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 22/4

7:10 p.m.-9:35 a.m.

1 stop30h 25m

Dublin

Tue 28/4

5:05 p.m.-8:57 p.m.

2 stops35h 52m

C$ 1,163
Quickest round-trip

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 5/8

7:40 a.m.-10:40 a.m.

1 stop19h 00m

Dublin

Wed 19/8

9:50 a.m.-2:22 p.m.

1 stop12h 32m

C$ 1,193

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 10/8

6:40 p.m.-6:25 p.m.

1 stop15h 45m

Dublin

Tue 18/8

11:10 a.m.-11:37 a.m.

1 stop32h 27m

C$ 1,204

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 22 resultsSorted by cheapest first
1
2
3

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 C$ 426). Flying from Seattle to Ireland in June is currently the most expensive (average of C$ 750). 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 7 April 2026.

When flying from Seattle to Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 7 April 2026.
Read through reviews of airlines operating flights from Seattle to Ireland, such as Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,499 reviews
Check prices

Comfort

7.2

Crew

8.1

Entertainment

7.0

Overall

7.2

Boarding

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Wendy,Mar 2026

YYZ - DUB

I didn’t happen, my seat was given away because even though my bag was checked through to Dublin apparently the previous airline didn’t check me in. Even when I asked specifically at check in they said I and my luggage we both checked all the way through.
Aer Lingus
7.2
Good
1,499 reviews
Aer Lingus
7.2
Good
1,499 reviews
Check prices

Comfort

7.2

Crew

8.1

Entertainment

7.0

Overall

7.2

Boarding

7.4

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Wendy,Mar 2026

YYZ - DUB

I didn’t happen, my seat was given away because even though my bag was checked through to Dublin apparently the previous airline didn’t check me in. Even when I asked specifically at check in they said I and my luggage we both checked all the way through.

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?

    If you book a flight to Ireland from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle.

  • How popular is this Seattle to Ireland flight route?

    This flight path from Seattle/Tacoma Intl to Ireland was viewed by 53 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?

    For as low as C$ 930, Turkish Airlines can have you in Ireland from Seattle in 36h 50m. Seattle and Ireland are separated by a distance of 7279 km.

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

    Before booking your flight to Ireland from Seattle, check out the most reliable airlines to get you to your destination on time: American Airlines (81%), Aer Lingus (81%), Iberia( 81%).

  • 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 C$ 426). Flying from Seattle to Ireland in June is currently the most expensive (average of C$ 750). 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 airline flying from Seattle to Ireland

Discover the top airline 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 629,999 searches. Data last updated 7 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 641AverageC$ 978FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Ireland?

When you search for this flight from Seattle to Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Ireland?

Cheapflights simply makes it quick and affordable to book flights from Seattle to Ireland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Seattle to Ireland with no change fees?

Yes! Cheapflights helps users easily find flights from Seattle to Ireland with no change fees.

Can Cheapflights notify me if prices for flights from Seattle to Ireland become cheaper?

Yes! Start tracking prices for Seattle to Ireland flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.