Cheap flights from Ireland to Seattle from £286
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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ireland to Seattle
Keep the following information in mind while searching for Ireland to Seattle flight deals. Data was last updated 13 giugno 2025.
Find flight deals from Ireland to Seattle
Cheapest flights from Ireland to SeattleExplore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 giugno 2025.
Explore the most affordable flight options available from Ireland to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 giugno 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Ireland to Seattle 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 858,174 searches. Data last updated 13 giugno 2025.
Use the filters below to find and compare flights from Ireland to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
DublinSeattle
DUB - SEA
DUBSEA
Dublin
gio 18/9
19:05-14:00
1 stop26h 55m
Seattle/Tacoma Intl
ven 10/10
16:20-09:25
1 stop33h 05m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
dom 14/9
12:15-20:40
1 stop16h 25m
Seattle/Tacoma Intl
ven 10/10
15:45-13:15
1 stop13h 30m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
mar 9/9
05:55-16:05
1 stop18h 10m
Seattle/Tacoma Intl
gio 18/9
07:20-09:15
1 stop17h 55m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
ven 7/11
05:55-14:45
2 stops16h 50m
Seattle/Tacoma Intl
lun 10/11
14:00-15:40
1 stop17h 40m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
dom 14/9
20:25-11:35
1 stop23h 10m
Seattle/Tacoma Intl
mar 7/10
15:13-17:55
2 stops18h 42m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
mer 16/7
11:45-19:11
1 stop15h 26m
Seattle/Tacoma Intl
sab 2/8
07:05-05:30
1 stop14h 25m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
dom 30/11
16:30-18:20
Nonstop9h 50m
Seattle/Tacoma Intl
dom 15/2
18:50-19:05
1 stop16h 15m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
mer 24/9
12:15-23:21
2 stops19h 06m
Seattle/Tacoma Intl
ven 10/10
10:58-13:15
2 stops18h 17m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
dom 13/7
10:40-22:04
1 stop19h 24m
Seattle/Tacoma Intl
gio 31/7
11:43-09:00
1 stop13h 17m
DublinSeattle
DUB - SEA
DUBSEA
Dublin
lun 21/7
11:45-22:55
1 stop19h 10m
Seattle/Tacoma Intl
dom 17/8
07:44-09:45
1 stop18h 01m
Best time to book a flight from Ireland to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Ireland with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ireland to Seattle
What is the cheapest month to book a flight from Ireland to Seattle?
Currently, January is the cheapest month in which you can book a flight from Ireland to Seattle (average of £622). Flying from Ireland to Seattle in July is currently the most expensive (average of £946). 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 IE to SEA?
Find hourly flight availability from Ireland to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 giugno 2025.
When flying from Ireland to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Rainfall in Seattle by month
Plan your trip to Seattle by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.
Temperature in Seattle by month
Plan your trip to Seattle by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated 13 giugno 2025.
Read through reviews of airlines operating flights from Ireland to Seattle, such as Delta, KLM and Finnair. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Ireland to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Ireland?
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Alternative routes for Ireland to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Ireland to Seattle
Discover the top 3 airlines that operate flights from Ireland to Seattle. 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 858,174 searches. Data last updated 13 giugno 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Ireland to Seattle?
Cheapflights helps you search for flights from Ireland to Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Ireland to Seattle?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ireland to Seattle.
Can Cheapflights find flights from Ireland to Seattle with no change fees?
Yes, we can. To see specific flights from Ireland to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Ireland to Seattle become cheaper?
Of course! You can now track prices for flights from Ireland to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.