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Cheap flights from Ireland to Seattle from €268

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 5/3. 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

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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 - 17:00
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m
1 stop
€370Icelandair
Fri, 6 Feb - Mon, 16 Feb
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
€374Icelandair
Thu, 9 Apr - Thu, 16 Apr
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
€375Icelandair
Thu, 9 Apr - Thu, 16 Apr
Icelandair Logo
11:30 - 17:00
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
14:35 - 10:15
SEA
-
DUB
11h 40m
1 stop
€377Icelandair
Tue, 3 Feb - Fri, 6 Feb
Finnair Logo
09:30 - 22:26
DUB
-
SEA
20h 56m
1 stop
Finnair Logo
13:18 - 11:50
SEA
-
DUB
14h 32m
1 stop
€403Finnair
Fri, 15 May - Mon, 8 Jun
KLM Logo
06:00 - 16:30
ORK
-
SEA
18h 30m
1 stop
KLM Logo
17:30 - 23:30
SEA
-
ORK
22h 00m
1 stop
€484KLM
Thu, 9 Apr - Thu, 16 Apr
Delta Logo
06:00 - 11:45
ORK
-
SEA
13h 45m
1 stop
Delta Logo
07:15 - 10:20
SEA
-
ORK
19h 05m
2 stops
€486Delta
Thu, 9 Apr - Thu, 16 Apr
Delta Logo
06:00 - 14:58
ORK
-
SEA
16h 58m
2 stops
Delta Logo
17:30 - 16:35
SEA
-
ORK
15h 05m
1 stop
€489Delta
Thu, 9 Apr - Thu, 16 Apr
KLM Logo
15:10 - 11:15
ORK
-
SEA
28h 05m
1 stop
KLM Logo
13:50 - 23:30
SEA
-
ORK
25h 40m
1 stop
€501KLM
Sat, 23 May - Mon, 1 Jun
British Airways Logo
07:40 - 18:25
SNN
-
SEA
18h 45m
1 stop
British Airways Logo
20:20 - 20:35
SEA
-
SNN
16h 15m
1 stop
€1,010British Airways
Mon, 4 May - Thu, 7 May

KLM flights from Ireland to Seattle

Our best KLM deals on Ireland to Seattle flight tickets
KLM
9 Apr
ORK06:00Cork
18h 30m
1 stop
SEA16:30Seattle/Tacoma Intl
16 Apr
SEA17:30Seattle/Tacoma Intl
22h 00m
1 stop
ORK23:30Cork
€484
KLM
23 May
ORK15:10Cork
28h 05m
1 stop
SEA11:15Seattle/Tacoma Intl
1 Jun
SEA13:50Seattle/Tacoma Intl
25h 40m
1 stop
ORK23:30Cork
€501
KLM
2 Feb
ORK13:25Cork
30h 15m
1 stop
SEA11:40Seattle/Tacoma Intl
8 Feb
SEA15:05Seattle/Tacoma Intl
24h 20m
1 stop
ORK23:25Cork
€525

Icelandair flights from Ireland to Seattle

Our best Icelandair deals on Ireland to Seattle flight tickets
Icelandair
6 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
16 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
€370
Icelandair
9 Apr
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
16 Apr
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
€374
Icelandair
9 Apr
DUB14:15Dublin
14h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
16 Apr
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
€375

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 20 January 2026.
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

Fri 6/2

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Mon 16/2

14:35-10:15

1 stop11h 40m

€370

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 9/4

14:15-17:55

1 stop11h 40m

Seattle/Tacoma Intl

Thu 16/4

15:40-11:05

1 stop11h 25m

€374

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 9/4

14:15-20:40

1 stop14h 25m

Seattle/Tacoma Intl

Thu 16/4

15:40-11:05

1 stop11h 25m

€375

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 3/2

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Fri 6/2

14:35-10:15

1 stop11h 40m

€377

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 15/5

09:30-22:26

1 stop20h 56m

Seattle/Tacoma Intl

Mon 8/6

13:18-11:50

1 stop14h 32m

€403

CorkSeattle

ORK - SEA

ORKSEA

Cork

Thu 9/4

06:00-16:30

1 stop18h 30m

Seattle/Tacoma Intl

Thu 16/4

17:30-23:30

1 stop22h 00m

€484

CorkSeattle

ORK - SEA

ORKSEA

Cork

Thu 9/4

06:00-11:45

1 stop13h 45m

Seattle/Tacoma Intl

Thu 16/4

07:15-10:20

2 stops19h 05m

€486

CorkSeattle

ORK - SEA

ORKSEA

Cork

Thu 9/4

06:00-14:58

2 stops16h 58m

Seattle/Tacoma Intl

Thu 16/4

17:30-16:35

1 stop15h 05m

€489

CorkSeattle

ORK - SEA

ORKSEA

Cork

Sat 23/5

15:10-11:15

1 stop28h 05m

Seattle/Tacoma Intl

Mon 1/6

13:50-23:30

1 stop25h 40m

€501

ShannonSeattle

SNN - SEA

SNNSEA

Shannon

Mon 4/5

07:40-18:25

1 stop18h 45m

Seattle/Tacoma Intl

Thu 7/5

20:20-20:35

1 stop16h 15m

€1,010

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 €544.

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 €641. Flights from Ireland to Seattle on a Tuesday will generally be more expensive and average around €833. 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 €619 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 €590 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 16% 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

€614

Fastest flight time

9h 45m

Direct flights

Every day

Airports in Seattle

1 airport
The best flight deal from Ireland to Seattle found on momondo in the last 72 hours is €614
The fastest flight from Ireland to Seattle takes 9h 45m
Direct flights go from Ireland to Seattle every day.
There is 1 airport in Seattle. From Ireland there are direct flights to 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 €384Free CancellationRating
7.1
602 reviews
Search Icelandair flights
British AirwaysPriceFrom €407Free CancellationRating
6.7
7,690 reviews
Search British Airways flights
Aer LingusPriceFrom €474Free CancellationRating
7.2
1,437 reviews
Search Aer Lingus flights
American AirlinesPriceFrom €524Free CancellationRating
7.2
11,167 reviews
Search American Airlines 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.

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