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Cheap flights from Seattle to Ireland from C$ 369

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
10 May — 17 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 10 April 2026.

Thu 3/912:35 p.m.
SEA
-
DUB
1 stop19h 25m
Turkish Airlines
Tue 17/116:25 a.m.
DUB
-
SEA
1 stop18h 40m
Turkish Airlines
Deal found 6/4C$ 921
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$ 922
Tue 6/107:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Wed 14/1010:40 a.m.
DUB
-
SEA
1 stop38h 35m
Turkish Airlines
Deal found 7/4C$ 927
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$ 929
Sat 22/83:55 p.m.
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Mon 31/87:50 p.m.
DUB
-
SEA
2 stops25h 55m
Scandinavian Airlines
Deal found 7/4C$ 932
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$ 940
Fri 11/93:55 p.m.
SEA
-
DUB
1 stop33h 30m
Scandinavian Airlines
Mon 21/912:40 p.m.
DUB
-
SEA
1 stop33h 05m
Scandinavian Airlines
Deal found 9/4C$ 947
Wed 21/107:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Wed 28/1010:40 a.m.
DUB
-
SEA
1 stop38h 25m
Turkish Airlines
Deal found 10/4C$ 962
Mon 5/107:10 p.m.
SEA
-
DUB
1 stop30h 25m
Turkish Airlines
Tue 3/116:25 a.m.
DUB
-
SEA
1 stop19h 40m
Turkish Airlines
Deal found 9/4C$ 964
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 10/4C$ 969
Mon 9/117:00 p.m.
SEA
-
DUB
1 stop30h 40m
Turkish Airlines
Mon 16/114:30 p.m.
DUB
-
SEA
1 stop32h 35m
Turkish Airlines
Deal found 8/4C$ 976
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$ 982

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 10 April 2026.

Round-trip from

C$ 921

One-way from

C$ 369

Popular in

June

Cheapest in

February

Average price

C$ 915
Turkish Airlines
  • Turkish Airlines
  • 3/9-17/11
  • 2 total stops
  • 38h 05m total
  • Seattle to Ireland
Search Deals
21/4
  • 21/4
  • 3 total stops
  • 28h 50m total
  • Seattle to Ireland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 277 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 10 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

Mon 28/9

7:10 p.m.-4:00 p.m.

1 stop36h 50m

Dublin

Fri 13/11

4:30 p.m.-5:05 p.m.

1 stop32h 35m

C$ 987

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 29/8

3:55 p.m.-10:25 a.m.

2 stops34h 30m

Dublin

Sun 6/9

10:15 a.m.-10:17 p.m.

2 stops20h 02m

C$ 1,021

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 23/8

7:10 p.m.-4:00 p.m.

1 stop36h 50m

Dublin

Sun 6/9

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

1 stop25h 35m

C$ 1,025

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 5/10

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

1 stop30h 25m

Dublin

Mon 9/11

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

1 stop38h 25m

C$ 1,043

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 23/8

3:55 p.m.-10:10 a.m.

2 stops34h 15m

Dublin

Sun 6/9

10:15 a.m.-10:17 p.m.

2 stops20h 02m

C$ 1,057

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 6/10

7:10 p.m.-4:00 p.m.

1 stop36h 50m

Dublin

Sat 14/11

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

1 stop38h 25m

C$ 1,070

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Thu 1/10

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

1 stop19h 55m

Dublin

Sat 14/11

4:50 p.m.-5:05 p.m.

1 stop32h 15m

C$ 1,070

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 6/5

7:15 a.m.-8:15 a.m.

2 stops17h 00m

Dublin

Wed 13/5

5:55 a.m.-11:42 a.m.

1 stop13h 47m

C$ 1,135

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 5/8

2:30 p.m.-4:40 p.m.

2 stops18h 10m

Dublin

Wed 19/8

5:55 a.m.-6:29 p.m.

2 stops20h 34m

C$ 1,155

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Mon 17/8

9:50 a.m.-6:20 p.m.

2 stops24h 30m

Dublin

Thu 27/8

11:10 a.m.-1:45 p.m.

2 stops34h 35m

C$ 1,170

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

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

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$ 423). Flying from Seattle to Ireland in June is currently the most expensive (average of C$ 745). 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 10 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 10 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
1,500 reviews
Check prices

Entertainment

7.0

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Overall

7.2

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
1,500 reviews
Aer Lingus
7.2
Good
1,500 reviews
Check prices

Entertainment

7.0

Crew

8.1

Comfort

7.2

Food

6.6

Boarding

7.4

Overall

7.2

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$ 927, Turkish Airlines can have you in Ireland from Seattle in 19h 55m. Seattle and Ireland are separated by a distance of 7279 km. Both multi-stop and direct flights can be found to your destination and back.

  • 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$ 423). Flying from Seattle to Ireland in June is currently the most expensive (average of C$ 745). 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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 638AverageC$ 972FlexibilityNo 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.

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