Cheap flights from Seattle to Ireland from C$ 380
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 25/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Seattle to Ireland
Keep the following information in mind while searching for Seattle to Ireland flight deals. Data was last updated 3 July 2025.
Round-trip from | C$ 540 |
---|---|
One-way from | C$ 380 |
Popular in | June |
Cheapest in | January |
Average price | C$ 1,148 |
Good round-trip deal | C$ 628 or less |
Find flight deals from Seattle to Ireland
Cheapest flights from Seattle to IrelandExplore 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 3 July 2025.
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 3 July 2025.
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 3 July 2025.
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
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Mon 1/9
5:40 p.m.-8:20 a.m.
1 stop30h 40m
Dublin
Fri 12/12
10:45 a.m.-11:34 p.m.
2 stops20h 49m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Mon 8/12
6:50 p.m.-7:55 a.m.
1 stop29h 05m
Dublin
Mon 15/12
8:30 p.m.-11:20 a.m.
1 stop22h 50m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Mon 27/10
7:00 a.m.-8:10 a.m.
1 stop18h 10m
Dublin
Sun 9/11
9:00 a.m.-9:56 p.m.
1 stop20h 56m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Mon 4/8
3:45 p.m.-1:15 p.m.
1 stop13h 30m
Dublin
Tue 19/8
2:15 p.m.-5:50 p.m.
1 stop11h 35m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Mon 11/8
7:35 p.m.-12:40 p.m.
Nonstop9h 05m
Dublin
Sun 17/8
4:10 p.m.-5:50 p.m.
Nonstop9h 40m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Sun 3/8
7:15 p.m.-7:45 a.m.
2 stops28h 30m
Dublin
Tue 12/8
9:20 a.m.-6:36 p.m.
2 stops41h 16m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Thu 4/12
9:30 a.m.-7:45 a.m.
1 stop14h 15m
Dublin
Thu 11/12
9:45 a.m.-8:32 p.m.
1 stop18h 47m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Thu 25/9
10:00 a.m.-7:45 a.m.
1 stop13h 45m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Thu 25/9
3:45 p.m.-12:10 a.m.
3 stops24h 25m
SeattleDublin
SEA - DUB
SEADUB
Seattle/Tacoma Intl
Thu 28/8
7:00 p.m.-7:45 a.m.
3 stops28h 45m
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.
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, January is the cheapest month in which you can book a flight from Seattle to Ireland (average of C$ 458). Flying from Seattle to Ireland in December is currently the most expensive (average of C$ 760). 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 3 July 2025.
A simple way to save on the total cost of your ticket is to fly from Seattle to Ireland at noon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the morning.
What is the cheapest day to fly from Seattle to Ireland?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Ireland. Price data was last updated on 16 December 2024.
Travelers seeking maximum savings on their Seattle to Ireland flight should consider departing on Monday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Seattle to Ireland
Explore weekly flight availability from Seattle to Ireland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 3 July 2025.
The most flights from SEA to IE0 are scheduled on a Monday (3 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 on average).
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 3 July 2025.
Read through reviews of airlines operating flights from Seattle to Ireland, such as Alaska Airlines,Delta, andSWISS. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Comfort
Crew
Boarding
Food
Overall
Reviews
Surinder,May 2025
SEA - YYZ
Entertainment
Comfort
Crew
Boarding
Food
Overall
Reviews
Surinder,May 2025
SEA - YYZ
Entertainment
Comfort
Crew
Boarding
Food
Overall
Reviews
Surinder,May 2025
SEA - YYZ
Entertainment
Comfort
Crew
Boarding
Food
Overall
Reviews
Surinder,May 2025
SEA - YYZ
Entertainment
Comfort
Crew
Boarding
Food
Overall
Reviews
Surinder,May 2025
SEA - YYZ
Entertainment
Comfort
Crew
Boarding
Food
Overall
Reviews
Surinder,May 2025
SEA - YYZ
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.
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Alternative routes for Seattle to Ireland
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Seattle to Ireland
Discover the top 3 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 629,999 searches. Data last updated 3 July 2025.
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.