Cheap flights from Ireland to Seattle from €348
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Seattle departing on 26/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 29/10
11:30-18:00
1 stop13h 30m
Seattle/Tacoma Intl
Mon 2/11
14:35-10:15
1 stop11h 40m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Fri 20/11
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 27/11
14:35-10:15
1 stop11h 40m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Tue 24/11
11:30-17:00
1 stop13h 30m
Seattle/Tacoma Intl
Fri 27/11
14:35-10:15
1 stop11h 40m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Tue 10/11
14:15-17:00
2 stops34h 45m
Seattle/Tacoma Intl
Tue 17/11
14:35-22:05
2 stops23h 30m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 5/11
06:35-17:00
2 stops18h 25m
Seattle/Tacoma Intl
Thu 12/11
14:35-20:15
2 stops21h 40m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 29/10
07:35-18:00
2 stops17h 25m
Seattle/Tacoma Intl
Mon 2/11
14:35-19:05
2 stops20h 30m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Fri 19/2
10:50-16:50
1 stop14h 00m
Seattle/Tacoma Intl
Sat 27/2
13:40-09:55
1 stop12h 15m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 6/1
19:45-11:25
1 stop23h 40m
Seattle/Tacoma Intl
Wed 13/1
18:45-16:35
1 stop13h 50m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Wed 21/10
15:25-17:10
Nonstop9h 45m
Seattle/Tacoma Intl
Sat 24/10
11:17-10:35
1 stop15h 18m
DublinSeattle
DUB Dublin - SEA Seattle/Tacoma Intl
DUBSEA
Dublin
Thu 22/10
15:25-17:10
Nonstop9h 45m
Seattle/Tacoma Intl
Sun 25/10
07:10-14:40
1 stop24h 30m
See travel insights to Seattle from
How to get the cheapest flight ticket from Ireland to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
If you’re not able to fly to Seattle in April, then May is your next best option. Flight prices from Ireland to Seattle during May average around €556.
What is the cheapest day to depart on your flight to Seattle?
Our data shows that Friday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €813. Flights from Ireland to Seattle on a Thursday will generally be more expensive and average around €985. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest Ireland to Seattle/Tacoma Intl flight route?
Fly from Dublin to Seattle/Tacoma Intl for the best Ireland - Seattle/Tacoma Intl flight prices
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Ireland when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around €679 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Ireland for as low as €518 on momondo.
What cabin class options are available on Ireland to Seattle flights?
There are 2 cabin classes available to choose from on Ireland to Seattle flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Ireland to Seattle flights?
You could potentially save up to 46% on your flight if you consider stops on a Ireland to Seattle flight.
How often are flights from Ireland to Seattle delayed?
Historically, on average around 12% of flights between Ireland and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 163 minutes.
What is the most punctual flight time for Ireland to Seattle flights?
Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.
What day of the week experiences the fewest flight delays on this route?
Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.
Which airline has the best punctuality record on Ireland to Seattle flights?
According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.
How many flights depart from Ireland to Seattle on average per day?
As of October 2026, 4 flights take off from Ireland and land in Seattle each day. The most common flight departure time for this route is 15:00, with 100% of daily flights taking off in the afternoon.
How many flights depart from Ireland to Seattle on average per week?
As of October 2026, 28 flights take off from Ireland and land in Seattle each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
Cheap Ireland to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ireland to Seattle
Frequently asked questions about flying from Ireland to Seattle
When did momondo last update prices for flights from Ireland to Seattle/Tacoma Intl Airport?
Prices for flights from Ireland to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Ireland to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Ireland to Seattle/Tacoma Intl Airport is 3 as of October 2026.
How old do you have to be to fly from Ireland to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Ireland to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Ireland to Seattle is Airbus A330-200, representing 69.87% of all bookings. The subsequent popular models are Airbus A330-300 at 13.46%, Airbus A330 at 5.13%, and Airbus A321neo at 3.21%.
Best airlines flying from Ireland to Seattle
Compare and see reviews for airlines that fly from Ireland to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom €409 | Free Cancellation | Rating 6.9 758 reviews | |||
| PriceFrom €423 | Free Cancellation | Rating 6.7 8,256 reviews | |||
| PriceFrom €495 | Free Cancellation | Rating 7.3 1,817 reviews |
Travelling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Ireland to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from Ireland to Seattle with flexible booking policies on momondo?
momondo does allow users to show only those flights to Seattle from Ireland which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Ireland to Seattle?
Once all potential Ireland to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Ireland to Seattle right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Seattle from Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.