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Cheap flights from Ireland to Seattle from £360

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Seattle departing on 11/2. 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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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
£360Icelandair
Find Deal
Wed, 11 Feb - Tue, 24 Feb
British Airways Logo
08:50 - 16:55DUB-SEA
16h 05m1 stop
British Airways Logo
18:50 - 07:55SEA-DUB
29h 05m1 stop
£376British Airways
Find Deal
Mon, 9 Feb - Sat, 21 Feb
American Airlines Logo
10:55 - 13:08DUB-SEA
34h 13m2 stops
American Airlines Logo
10:35 - 12:15SEA-DUB
17h 40m2 stops
£379American Airlines
Find Deal
Tue, 10 Feb - Wed, 25 Feb
British Airways Logo
10:55 - 23:32DUB-SEA
20h 37m2 stops
British Airways Logo
18:50 - 17:25SEA-DUB
14h 35m1 stop
£380British Airways
Find Deal
Sat, 14 Feb - Thu, 26 Feb
American Airlines Logo
11:30 - 22:01DUB-SEA
18h 31m1 stop
American Airlines Logo
08:20 - 12:15SEA-DUB
19h 55m2 stops
£382American Airlines
Find Deal
Sun, 15 Feb - Wed, 25 Feb
American Airlines Logo
11:30 - 00:59DUB-SEA
21h 29m2 stops
American Airlines Logo
18:50 - 10:00SEA-DUB
31h 10m1 stop
£382American Airlines
Find Deal
Sun, 15 Feb - Thu, 26 Feb
Delta Logo
05:55 - 11:45DUB-SEA
13h 50m1 stop
Delta Logo
09:28 - 07:45SEA-DUB
14h 17m1 stop
£383Delta
Find Deal
Sat, 22 Nov - Sat, 29 Nov
Delta Logo
05:55 - 11:45DUB-SEA
13h 50m1 stop
Delta Logo
09:28 - 07:45SEA-DUB
14h 17m1 stop
£384Delta
Find Deal
Sat, 22 Nov - Sat, 29 Nov
Aer Lingus Logo
06:40 - 16:55DUB-SEA
18h 15m1 stop
Aer Lingus Logo
20:05 - 13:10SEA-DUB
9h 05mdirect
£458Aer Lingus
Find Deal
Thu, 12 Feb - Mon, 23 Feb
Icelandair Logo
11:30 - 18:00DUB-SEA
13h 30m1 stop
Icelandair Logo
15:35 - 10:15SEA-DUB
11h 40m1 stop
£534Icelandair
Find Deal
Mon, 23 Mar - Thu, 26 Mar

Icelandair flights from Ireland to Seattle

Our best Icelandair deals on Ireland to Seattle flight tickets
Icelandair
11 Feb
DUB11:30Dublin
13h 30m
1 stop
SEA17:00Seattle/Tacoma Intl
24 Feb
SEA14:35Seattle/Tacoma Intl
11h 40m
1 stop
DUB10:15Dublin
£360
Find similar
Icelandair
23 Mar
DUB11:30Dublin
13h 30m
1 stop
SEA18:00Seattle/Tacoma Intl
27 Mar
SEA15:35Seattle/Tacoma Intl
13h 40m
1 stop
DUB12:15Dublin
£534
Find similar
Icelandair
30 Apr
DUB14:15Dublin
11h 35m
1 stop
SEA17:50Seattle/Tacoma Intl
4 May
SEA15:45Seattle/Tacoma Intl
13h 30m
1 stop
DUB13:15Dublin
£542
Find similar

British Airways flights from Ireland to Seattle

Our best British Airways deals on Ireland to Seattle flight tickets
British Airways
9 Feb
DUB08:50Dublin
16h 05m
1 stop
SEA16:55Seattle/Tacoma Intl
21 Feb
SEA18:50Seattle/Tacoma Intl
29h 05m
1 stop
DUB07:55Dublin
£376
Find similar
British Airways
14 Feb
DUB10:55Dublin
20h 37m
2 stops
SEA23:32Seattle/Tacoma Intl
26 Feb
SEA18:50Seattle/Tacoma Intl
14h 35m
1 stop
DUB17:25Dublin
£380
Find similar
British Airways
28 Jan
DUB08:50Dublin
20h 57m
2 stops
SEA21:47Seattle/Tacoma Intl
7 Feb
SEA18:50Seattle/Tacoma Intl
15h 50m
1 stop
DUB18:40Dublin
£385
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 279,928 searches. Data last updated 3 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 11/2

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Tue 24/2

14:35-10:15

1 stop11h 40m

£360

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 9/2

08:50-16:55

1 stop16h 05m

Seattle/Tacoma Intl

Sat 21/2

18:50-07:55

1 stop29h 05m

£376

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 10/2

10:55-13:08

2 stops34h 13m

Seattle/Tacoma Intl

Wed 25/2

10:35-12:15

2 stops17h 40m

£379

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 14/2

10:55-23:32

2 stops20h 37m

Seattle/Tacoma Intl

Thu 26/2

18:50-17:25

1 stop14h 35m

£380

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 15/2

11:30-22:01

1 stop18h 31m

Seattle/Tacoma Intl

Wed 25/2

08:20-12:15

2 stops19h 55m

£382

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 15/2

11:30-00:59

2 stops21h 29m

Seattle/Tacoma Intl

Thu 26/2

18:50-10:00

1 stop31h 10m

£382

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 22/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Sat 29/11

09:28-07:45

1 stop14h 17m

£383

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sat 22/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Sat 29/11

09:28-07:45

1 stop14h 17m

£384

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 12/2

06:40-16:55

1 stop18h 15m

Seattle/Tacoma Intl

Mon 23/2

20:05-13:10

Nonstop9h 05m

£458

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 23/3

11:30-18:00

1 stop13h 30m

Seattle/Tacoma Intl

Thu 26/3

15:35-10:15

1 stop11h 40m

£534

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

The cheapest month to fly to Seattle from Ireland is in February. Flight prices, which tend to average around £466, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Seattle, with average flight prices from Ireland averaging around £481.

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

According to our data, Friday is the cheapest day to fly to Seattle from Ireland. The lowest ticket price found for a Friday departure recently was £575. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Seattle on Saturday is £758.

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

According to our data, the cheapest time of day to fly to Seattle is in the morning. momondo users have found flights departing from Ireland to Seattle in the morning for as low as £546. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive, with an average ticket price of £611.

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 £543 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 £456 on momondo.

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

There are 2 cabin classes 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 30% 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

Fastest flight time

9h 50m

Direct flights

Mon

Airports in Seattle

1 airport
The fastest flight from Ireland to Seattle takes 9h 50m
Direct flights go from Ireland to Seattle on Monday. 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 are updated daily.

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable 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
Scandinavian AirlinesPriceFrom £326Free CancellationRating
7.4
1,554 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom £356Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
Aer LingusPriceFrom £405Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights
IcelandairPriceFrom £412Free CancellationRating
7.1
568 reviews
Search Icelandair flights
American AirlinesPriceFrom £559Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights

Travelling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Fife
Renton
SeaTac

Why use momondo?

Why should I use momondo to find a flight deal from Ireland to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ireland to Seattle . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ireland to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Ireland with this policy.

How can momondo help me find flights from Ireland to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ireland to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ireland to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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