Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ireland to Seattle from €320

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 15/1. 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

Enter your travel dates to find the best prices.
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€403Icelandair
Find Deal
Wed, 28 Jan - Sun, 8 Feb
Icelandair Logo
11:30 - 17:00DUB-SEA
13h 30m1 stop
Icelandair Logo
14:35 - 10:15SEA-DUB
11h 40m1 stop
€405Icelandair
Find Deal
Wed, 18 Feb - Sat, 28 Feb
American Airlines Logo
10:20 - 16:55DUB-SEA
14h 35m1 stop
American Airlines Logo
13:35 - 10:00SEA-DUB
12h 25m1 stop
€427American Airlines
Find Deal
Wed, 18 Feb - Fri, 27 Feb
American Airlines Logo
08:50 - 16:55DUB-SEA
16h 05m1 stop
American Airlines Logo
13:35 - 09:50SEA-DUB
12h 15m1 stop
€428American Airlines
Find Deal
Wed, 28 Jan - Sat, 7 Feb
British Airways Logo
15:10 - 16:55DUB-SEA
33h 45m1 stop
British Airways Logo
18:50 - 15:25SEA-DUB
12h 35m1 stop
€434British Airways
Find Deal
Wed, 3 Dec - Mon, 8 Dec
British Airways Logo
13:10 - 23:32DUB-SEA
18h 22m2 stops
British Airways Logo
13:25 - 14:20SEA-DUB
16h 55m1 stop
€435British Airways
Find Deal
Sat, 14 Feb - Tue, 24 Feb
Delta Logo
05:55 - 11:45DUB-SEA
13h 50m1 stop
Delta Logo
14:05 - 15:45SEA-DUB
17h 40m1 stop
€436Delta
Find Deal
Fri, 21 Nov - Fri, 5 Dec
Delta Logo
05:55 - 11:45DUB-SEA
13h 50m1 stop
Delta Logo
09:25 - 07:45SEA-DUB
14h 20m1 stop
€439Delta
Find Deal
Sat, 22 Nov - Sat, 13 Dec
Aer Lingus Logo
16:30 - 18:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
€442Aer Lingus
Find Deal
Mon, 16 Feb - Mon, 23 Feb
Aer Lingus Logo
16:30 - 18:20DUB-SEA
9h 50mdirect
Aer Lingus Logo
19:50 - 17:45SEA-DUB
14h 55m1 stop
€488Aer Lingus
Find Deal
Wed, 4 Mar - Sun, 8 Mar

Icelandair flights from Ireland to Seattle

Our best Icelandair deals on Ireland to Seattle flight tickets
Icelandair
28 Jan
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
8 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€403
Find similar
Icelandair
18 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
28 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€405
Find similar
Icelandair
19 Nov
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
3 Dec
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€406
Find similar

British Airways flights from Ireland to Seattle

Our best British Airways deals on Ireland to Seattle flight tickets
British Airways
3 Dec
DUB15:10Dublin
33h 45m
1 stop
SEA16:55Seattle/Tacoma Intl
8 Dec
SEA18:50Seattle/Tacoma Intl
12h 35m
1 stop
DUB15:25Dublin
€434
Find similar
British Airways
14 Feb
DUB13:10Dublin
18h 22m
2 stops
SEA23:32Seattle/Tacoma Intl
24 Feb
SEA13:25Seattle/Tacoma Intl
16h 55m
1 stop
DUB14:20Dublin
€435
Find similar
British Airways
28 Jan
DUB08:50Dublin
20h 57m
2 stops
SEA21:47Seattle/Tacoma Intl
8 Feb
SEA18:50Seattle/Tacoma Intl
14h 00m
1 stop
DUB16:50Dublin
€440
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 6 November 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

Wed 28/1

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Sun 8/2

14:35-10:15

1 stop11h 40m

€403

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 18/2

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Sat 28/2

14:35-10:15

1 stop11h 40m

€405

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 18/2

10:20-16:55

1 stop14h 35m

Seattle/Tacoma Intl

Fri 27/2

13:35-10:00

1 stop12h 25m

€427

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 28/1

08:50-16:55

1 stop16h 05m

Seattle/Tacoma Intl

Sat 7/2

13:35-09:50

1 stop12h 15m

€428

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/12

15:10-16:55

1 stop33h 45m

Seattle/Tacoma Intl

Mon 8/12

18:50-15:25

1 stop12h 35m

€434

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 14/2

13:10-23:32

2 stops18h 22m

Seattle/Tacoma Intl

Tue 24/2

13:25-14:20

1 stop16h 55m

€435

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 21/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Fri 5/12

14:05-15:45

1 stop17h 40m

€436

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 22/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Sat 13/12

09:25-07:45

1 stop14h 20m

€439

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 16/2

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Mon 23/2

20:05-13:10

Nonstop9h 05m

€442

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 4/3

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Sun 8/3

19:50-17:45

1 stop14h 55m

€488

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 November is your next best option. Flight prices from Ireland to Seattle during November average around €551.

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 €649. Flights from Ireland to Seattle on a Monday will generally be more expensive and average around €813. 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 €579. Flights in the afternoon are often more expensive, with an average ticket price of €712.

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 €622 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 €522 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?

You could potentially save up to 39% on your flight if you consider stops on a Ireland to Seattle flight.

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

€501

Fastest flight time

9h 39m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sat

Airports in Seattle

1 airport
The best flight deal from Ireland to Seattle found on momondo in the last 72 hours is €501
The fastest flight from Ireland to Seattle takes 9h 39m
Direct flights go from Ireland to Seattle on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights..
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 €425Free CancellationRating
7.1
571 reviews
Search Icelandair flights
Aer LingusPriceFrom €484Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
British AirwaysPriceFrom €510Free CancellationRating
6.7
7,496 reviews
Search British Airways 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
Sat 6/12
Sat 13/12
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