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Cheap flights from Seattle to Ireland from C$ 713

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — DUB
17 Apr — 24 Apr1
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 18 March 2026.

Tue 1/93:55 p.m.
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Fri 11/911:10 a.m.
DUB
-
SEA
2 stops34h 35m
Scandinavian Airlines
Deal found 15/3C$ 768
Sun 4/103:55 p.m.
SEA
-
DUB
2 stops34h 15m
Scandinavian Airlines
Tue 13/107:05 p.m.
DUB
-
SEA
2 stops35h 21m
Scandinavian Airlines
Deal found 17/3C$ 780
Sat 10/103:55 p.m.
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Tue 13/107:05 p.m.
DUB
-
SEA
2 stops35h 21m
Scandinavian Airlines
Deal found 15/3C$ 782
Tue 8/97:10 p.m.
SEA
-
DUB
1 stop19h 55m
Turkish Airlines
Sat 26/95:35 a.m.
DUB
-
SEA
1 stop19h 40m
Turkish Airlines
Deal found 18/3C$ 786
Sat 29/83:55 p.m.
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Sun 6/910:15 a.m.
DUB
-
SEA
2 stops20h 02m
Scandinavian Airlines
Deal found 17/3C$ 802
Sat 5/912:35 p.m.
SEA
-
DUB
1 stop19h 25m
Turkish Airlines
Sat 26/910:40 a.m.
DUB
-
SEA
1 stop38h 35m
Turkish Airlines
Deal found 17/3C$ 841
Sun 13/93:55 p.m.
SEA
-
DUB
2 stops34h 15m
Scandinavian Airlines
Sun 20/910:15 a.m.
DUB
-
SEA
2 stops20h 02m
Scandinavian Airlines
Deal found 17/3C$ 843
Tue 18/83:55 p.m.
SEA
-
DUB
2 stops34h 30m
Scandinavian Airlines
Sun 30/810:15 a.m.
DUB
-
SEA
2 stops22h 07m
Scandinavian Airlines
Deal found 14/3C$ 845
Tue 10/112:30 p.m.
SEA
-
DUB
2 stops19h 50m
Scandinavian Airlines
Mon 16/117:05 p.m.
DUB
-
SEA
2 stops35h 21m
Scandinavian Airlines
Deal found 16/3C$ 867
Wed 4/118:00 p.m.
SEA
-
DUB
1 stop35h 30m
Turkish Airlines
Wed 25/114:50 p.m.
DUB
-
SEA
1 stop32h 15m
Turkish Airlines
Deal found 15/3C$ 889
Mon 5/107:10 p.m.
SEA
-
DUB
1 stop20h 00m
Turkish Airlines
Tue 3/1110:40 a.m.
DUB
-
SEA
1 stop39h 25m
Turkish Airlines
Deal found 15/3C$ 890

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 18 March 2026.

Round-trip from

C$ 768

One-way from

C$ 713

Popular in

June

Cheapest in

November

Average price

C$ 833

Good round-trip deal

C$ 972 or less

Good one-way deal

C$ 804 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 1/9-11/9
  • 4 total stops
  • 69h 05m total
  • Seattle to Ireland
Search Deals
British Airways
  • British Airways
  • 8/4
  • 1 total stop
  • 15h 25m total
  • Seattle to Ireland
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 302 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 629,999 searches. Data last updated 18 March 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

Wed 5/8

5:00 p.m.-9:45 a.m.

1 stop32h 45m

Dublin

Wed 19/8

9:50 a.m.-9:52 a.m.

1 stop32h 02m

C$ 963

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 28/8

11:10 p.m.-10:40 a.m.

1 stop27h 30m

Dublin

Sun 6/9

9:50 a.m.-9:52 a.m.

1 stop32h 02m

C$ 986

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 6/5

6:00 a.m.-8:20 a.m.

2 stops18h 20m

Dublin

Wed 13/5

8:55 a.m.-8:30 p.m.

2 stops19h 35m

C$ 1,015

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 28/4

7:15 a.m.-10:25 a.m.

2 stops19h 10m

Dublin

Tue 5/5

5:55 a.m.-4:30 p.m.

1 stop18h 35m

C$ 1,061

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 6/6

6:30 a.m.-7:20 a.m.

2 stops40h 50m

Dublin

Sun 14/6

9:50 a.m.-9:50 a.m.

1 stop32h 00m

C$ 1,063

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 6/6

10:30 a.m.-7:45 a.m.

1 stop13h 15m

Dublin

Sun 14/6

9:50 a.m.-10:43 p.m.

1 stop20h 53m

C$ 1,065

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sun 19/4

7:00 p.m.-6:20 p.m.

2 stops15h 20m

Dublin

Thu 23/4

2:15 p.m.-11:29 p.m.

2 stops17h 14m

C$ 1,086

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Tue 12/5

6:00 a.m.-9:15 a.m.

2 stops19h 15m

Dublin

Wed 3/6

11:10 a.m.-4:24 p.m.

1 stop13h 14m

C$ 1,086

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 6/5

9:55 a.m.-1:15 p.m.

2 stops19h 20m

Dublin

Thu 14/5

11:10 a.m.-8:40 p.m.

2 stops17h 30m

C$ 1,090

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Wed 12/8

3:00 p.m.-7:45 a.m.

1 stop32h 45m

Dublin

Mon 31/8

9:50 a.m.-9:21 p.m.

3 stops43h 31m

C$ 1,094

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/3

Showing 1-10 of 22 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from Seattle to Ireland (average of C$ 419). Flying from Seattle to Ireland in June is currently the most expensive (average of C$ 831). 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 18 March 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 18 March 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
1,477 reviews
Check prices

Overall

7.2

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.
Aer Lingus
7.2
Good
1,477 reviews
Aer Lingus
7.2
Good
1,477 reviews
Check prices

Overall

7.2

Boarding

7.4

Entertainment

7.0

Comfort

7.1

Food

6.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Griffith,Feb 2026

MAN - DUB

Great experience. Crew was friendly, food was better than what I have experienced with some other airlines and seat pitch was adequate. I would fly Aer Lingus again.

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 54 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$ 997, United Airlines can have you in Ireland from Seattle in 13h 35m. 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 (88%), Aer Lingus (88%), Iberia( 88%).

  • What are the cheapest flights from Seattle to Ireland?

    Looking for the cheapest flight from Seattle to Ireland? While on average our users pay C$ 937, our data indicates the cheapest price to be C$ 390. The most popular route (Seattle/Tacoma Intl - Dublin), is priced around C$ 1,056.

  • 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, November is the cheapest month in which you can book a flight from Seattle to Ireland (average of C$ 419). Flying from Seattle to Ireland in June is currently the most expensive (average of C$ 831). 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 18 March 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapestC$ 669AverageC$ 963FlexibilityNo 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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