Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ireland to Seattle from €306

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 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted the Winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ireland to Seattle

Recent return flight deals from Ireland to Seattle

Scandinavian Airlines Logo
12:40 - 14:00DUB-SEA
33h 20m1 stop
Scandinavian Airlines Logo
16:20 - 11:50SEA-DUB
35h 30m1 stop
€373Scandinavian Airlines
Find Deal
Thu, 16 Oct - Sun, 19 Oct
Scandinavian Airlines Logo
11:45 - 14:00DUB-SEA
34h 15m2 stops
Scandinavian Airlines Logo
16:20 - 10:55SEA-DUB
34h 35m2 stops
€398Scandinavian Airlines
Find Deal
Thu, 16 Oct - Sun, 19 Oct
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€414Icelandair
Find Deal
Fri, 21 Nov - Fri, 28 Nov
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€429Icelandair
Find Deal
Sat, 31 Jan - Tue, 10 Feb
Lufthansa Logo
05:55 - 11:55DUB-SEA
14h 00m1 stop
Lufthansa Logo
08:00 - 10:20SEA-DUB
18h 20m1 stop
€443Lufthansa
Find Deal
Mon, 6 Oct - Mon, 13 Oct
Lufthansa Logo
10:50 - 18:52DUB-SEA
39h 02m2 stops
Lufthansa Logo
15:10 - 17:10SEA-DUB
18h 00m1 stop
€457Lufthansa
Find Deal
Wed, 29 Oct - Wed, 5 Nov
British Airways Logo
20:40 - 11:30DUB-SEA
22h 50m1 stop
British Airways Logo
18:50 - 15:05SEA-DUB
12h 15m1 stop
€464British Airways
Find Deal
Mon, 1 Dec - Fri, 2 Jan
British Airways Logo
20:40 - 11:30DUB-SEA
22h 50m1 stop
British Airways Logo
13:25 - 12:10SEA-DUB
14h 45m1 stop
€466British Airways
Find Deal
Mon, 22 Dec - Tue, 30 Dec
Aer Lingus Logo
16:30 - 19:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
€488Aer Lingus
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Aer Lingus Logo
11:55 - 11:30ORK-SEA
31h 35m1 stop
Aer Lingus Logo
18:50 - 23:25SEA-ORK
20h 35m1 stop
€894Aer Lingus
Find Deal
Mon, 22 Dec - Fri, 26 Dec

Delta flights from Ireland to Seattle

Our best Delta deals on Ireland to Seattle flight tickets
Delta
16 Nov
DUB05:55Dublin
17h 40m
2 stops
SEA15:35Seattle/Tacoma Intl
29 Nov
SEA13:40Seattle/Tacoma Intl
18h 05m
1 stop
DUB15:45Dublin
€477
Find similar
Delta
17 Nov
DUB05:55Dublin
22h 40m
2 stops
SEA20:35Seattle/Tacoma Intl
22 Nov
SEA22:05Seattle/Tacoma Intl
27h 15m
1 stop
DUB09:20Dublin
€479
Find similar
Delta
29 Oct
DUB05:55Dublin
21h 50m
2 stops
SEA20:45Seattle/Tacoma Intl
5 Nov
SEA14:05Seattle/Tacoma Intl
17h 40m
1 stop
DUB15:45Dublin
€480
Find similar

American Airlines flights from Ireland to Seattle

Our best American Airlines deals on Ireland to Seattle flight tickets
American Airlines
20 Nov
DUB13:10Dublin
30h 20m
1 stop
SEA11:30Seattle/Tacoma Intl
24 Nov
SEA18:50Seattle/Tacoma Intl
30h 45m
1 stop
DUB09:35Dublin
€466
Find similar
American Airlines
24 Oct
DUB08:35Dublin
35h 00m
1 stop
SEA11:35Seattle/Tacoma Intl
6 Nov
SEA11:42Seattle/Tacoma Intl
21h 43m
2 stops
DUB17:25Dublin
€469
Find similar
American Airlines
22 Nov
DUB10:55Dublin
20h 23m
2 stops
SEA23:18Seattle/Tacoma Intl
14 Dec
SEA11:22Seattle/Tacoma Intl
16h 53m
2 stops
DUB12:15Dublin
€471
Find similar

momondo 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, momondo users made 13,528 searches. Data last updated 15 September 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

Thu 16/10

12:40-14:00

1 stop33h 20m

Seattle/Tacoma Intl

Sun 19/10

16:20-11:50

1 stop35h 30m

€373

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 16/10

11:45-14:00

2 stops34h 15m

Seattle/Tacoma Intl

Sun 19/10

16:20-10:55

2 stops34h 35m

€398

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 21/11

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Fri 28/11

14:35-10:15

1 stop11h 40m

€414

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 31/1

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Tue 10/2

14:35-10:15

1 stop11h 40m

€429

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 6/10

05:55-11:55

1 stop14h 00m

Seattle/Tacoma Intl

Mon 13/10

08:00-10:20

1 stop18h 20m

€443

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 29/10

10:50-18:52

2 stops39h 02m

Seattle/Tacoma Intl

Wed 5/11

15:10-17:10

1 stop18h 00m

€457

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 1/12

20:40-11:30

1 stop22h 50m

Seattle/Tacoma Intl

Fri 2/1

18:50-15:05

1 stop12h 15m

€464

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 22/12

20:40-11:30

1 stop22h 50m

Seattle/Tacoma Intl

Tue 30/12

13:25-12:10

1 stop14h 45m

€466

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 29/10

16:30-19:20

Nonstop9h 50m

Seattle/Tacoma Intl

Wed 5/11

20:05-13:10

Nonstop9h 05m

€488

CorkSeattle

ORK - SEA

ORKSEA

Cork

Mon 22/12

11:55-11:30

1 stop31h 35m

Seattle/Tacoma Intl

Fri 26/12

18:50-23:25

1 stop20h 35m

€894

Flights are sorted by cheapest return flights first.

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

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 February, then January is your next best option. Flight prices from Ireland to Seattle during January average around €541.

What is the cheapest day to depart on your flight to Seattle?

Our data shows that Thursday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €635. Flights from Ireland to Seattle on a Monday will generally be more expensive and average around €795. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Seattle?

Our data shows that the cheapest Ireland to Seattle flights are usually those with departure times in the morning. Our users have found flights to Seattle in the morning for as low as €566. Flights in the afternoon are often more expensive, with an average ticket price of €710.

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 €620 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 €511 on momondo.

What cabin class options are available on Ireland to Seattle/Tacoma Intl flights?

There is only 1 cabin class available to choose from on Ireland to Seattle/Tacoma Intl 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?

No. A direct flight is the cheapest option for a flight between Ireland to Seattle.

Cheap Ireland to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ireland to Seattle

Best price found

€499

Fastest flight time

9h 40m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Ireland in the past 72 hours is €499. The best return flight deal from Ireland to Seattle found on momondo in the last 72 hours is €638.
The fastest flight from Ireland to Seattle takes 9h 40m
Direct flights go from Ireland to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • 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?

  • 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?

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
IcelandairPriceFrom €416Free CancellationRating
7.0
544 reviews
Search Icelandair flights
British AirwaysPriceFrom €510Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
Aer LingusPriceFrom €547Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Aberdeen
Lynnwood

Why 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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 15/10
Wed 22/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Washington

Spokane Airport