Cheap flights from Dublin to Seattle from £385

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Seattle departing on 30/4. 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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Cheap return flights

Enter your travel dates to find the best prices.
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
£385Icelandair
Thu, 30 Apr - Mon, 4 May
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
£389Icelandair
Thu, 30 Apr - Mon, 4 May
Icelandair Logo
12:15 - 17:55
DUB
-
SEA
13h 40m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
£391Icelandair
Wed, 8 Apr - Mon, 27 Apr
Scandinavian Airlines Logo
19:05 - 13:45
DUB
-
SEA
26h 40m
1 stop
Scandinavian Airlines Logo
15:55 - 19:05
SEA
-
DUB
19h 10m
2 stops
£394Scandinavian Airlines
Fri, 22 May - Sun, 24 May
Scandinavian Airlines Logo
19:50 - 13:45
DUB
-
SEA
25h 55m
2 stops
Scandinavian Airlines Logo
15:55 - 19:05
SEA
-
DUB
19h 10m
2 stops
£397Scandinavian Airlines
Fri, 22 May - Sun, 24 May
Icelandair Logo
14:15 - 17:55
DUB
-
SEA
11h 40m
1 stop
Icelandair Logo
15:40 - 11:05
SEA
-
DUB
11h 25m
1 stop
£401Icelandair
Thu, 16 Apr - Tue, 21 Apr
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
£404Icelandair
Tue, 14 Apr - Sun, 26 Apr
Icelandair Logo
14:15 - 20:40
DUB
-
SEA
14h 25m
1 stop
Icelandair Logo
19:00 - 11:05
SEA
-
DUB
32h 05m
1 stop
£405Icelandair
Tue, 14 Apr - Fri, 24 Apr
Icelandair Logo
12:15 - 20:40
DUB
-
SEA
16h 25m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
£406Icelandair
Wed, 15 Apr - Sun, 19 Apr
Icelandair Logo
12:15 - 20:40
DUB
-
SEA
16h 25m
1 stop
Icelandair Logo
15:40 - 13:15
SEA
-
DUB
13h 35m
1 stop
£407Icelandair
Wed, 15 Apr - Sun, 19 Apr

American Airlines flights from Dublin to Seattle

Our best American Airlines deals on Dublin to Seattle flight tickets
American Airlines
10 Apr
DUB09:30Dublin
21h 17m
1 stop
SEA22:47Seattle/Tacoma Intl
25 Apr
SEA11:41Seattle/Tacoma Intl
14h 04m
1 stop
DUB09:45Dublin
£456
American Airlines
12 Jun
DUB09:30Dublin
23h 29m
2 stops
SEA00:59Seattle/Tacoma Intl
16 Jun
SEA07:10Seattle/Tacoma Intl
18h 25m
1 stop
DUB09:35Dublin
£459
American Airlines
31 Mar
DUB09:30Dublin
19h 46m
1 stop
SEA21:16Seattle/Tacoma Intl
16 Apr
SEA00:59Seattle/Tacoma Intl
24h 46m
1 stop
DUB09:45Dublin
£461

Scandinavian Airlines flights from Dublin to Seattle

Our best Scandinavian Airlines deals on Dublin to Seattle flight tickets
Scandinavian Airlines
22 May
DUB19:05Dublin
26h 40m
1 stop
SEA13:45Seattle/Tacoma Intl
24 May
SEA15:55Seattle/Tacoma Intl
19h 10m
2 stops
DUB19:05Dublin
£394
Scandinavian Airlines
22 May
DUB19:50Dublin
25h 55m
2 stops
SEA13:45Seattle/Tacoma Intl
24 May
SEA15:55Seattle/Tacoma Intl
19h 10m
2 stops
DUB19:05Dublin
£397
Scandinavian Airlines
12 Jun
DUB19:05Dublin
26h 40m
1 stop
SEA13:45Seattle/Tacoma Intl
14 Jun
SEA15:55Seattle/Tacoma Intl
18h 25m
1 stop
DUB18:20Dublin
£437

momondo Fare Finder

 
Customise your flight search to find flights from Dublin 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 17 March 2026.
Use the filters below to find and compare flights from Dublin to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 30/4

14:15-17:55

1 stop11h 40m

Seattle/Tacoma Intl

Mon 4/5

15:40-13:15

1 stop13h 35m

£385

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 30/4

14:15-17:55

1 stop11h 40m

Seattle/Tacoma Intl

Mon 4/5

15:40-13:15

1 stop13h 35m

£389

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 8/4

12:15-17:55

1 stop13h 40m

Seattle/Tacoma Intl

Mon 27/4

15:40-13:15

1 stop13h 35m

£391

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 22/5

19:05-13:45

1 stop26h 40m

Seattle/Tacoma Intl

Sun 24/5

15:55-19:05

2 stops19h 10m

£394

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 22/5

19:50-13:45

2 stops25h 55m

Seattle/Tacoma Intl

Sun 24/5

15:55-19:05

2 stops19h 10m

£397
Fastest return journey

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 16/4

14:15-17:55

1 stop11h 40m

Seattle/Tacoma Intl

Tue 21/4

15:40-11:05

1 stop11h 25m

£400

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 14/4

14:15-20:40

1 stop14h 25m

Seattle/Tacoma Intl

Sun 26/4

15:40-13:15

1 stop13h 35m

£404

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 14/4

14:15-20:40

1 stop14h 25m

Seattle/Tacoma Intl

Fri 24/4

19:00-11:05

1 stop32h 05m

£405

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 15/4

12:15-20:40

1 stop16h 25m

Seattle/Tacoma Intl

Sun 19/4

15:40-13:15

1 stop13h 35m

£406

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 15/4

12:15-20:40

1 stop16h 25m

Seattle/Tacoma Intl

Sun 19/4

15:40-13:15

1 stop13h 35m

£407

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 Dublin 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 Dublin 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 September is another great option to travel to Seattle, with average flight prices from Dublin averaging around £469.

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

According to our data, Monday is the cheapest day to fly to Seattle from Dublin. The lowest ticket price found for a Monday departure recently was £556. 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 £783.

What is the cheapest Dublin to Seattle/Tacoma Intl flight route?

Fly from Dublin to Seattle/Tacoma Intl for the best Dublin - 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 Dublin when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around £542 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 Dublin for as low as £469 on momondo.

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

There are 2 cabin classes available to choose from on Dublin 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 Dublin to Seattle flights?

You could potentially save up to 30% on your flight if you consider stops on a Dublin to Seattle flight.

How have Dublin to Seattle flight prices changed over time?

As of March 2026, prices for Dublin to Seattle flights are approximately 34% more expensive when compared to flights at the same time last year.

When to book flights from Dublin to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Dublin to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Dublin to Seattle (DUB to SEA) flight deals and tips

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

Best price found

£411

Fastest flight time

9h 45m

Direct flights

Every day

Airports in Seattle

1 airport
The best flight deal from Dublin to Seattle found on momondo in the last 72 hours is £411
The fastest flight from Dublin to Seattle takes 9h 45m
Direct flights go from Dublin to Seattle every day.
There is 1 airport in Seattle. From Dublin there are direct flights to Seattle/Tacoma Intl (SEA).
  • How far is Dublin to Seattle/Tacoma Intl by plane?

    The distance between Dublin and Seattle/Tacoma Intl is about 4518.4 mi. By plane, this route typically takes 9h 45m.

  • When did momondo last update prices for flights from Dublin Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Dublin Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Dublin Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Dublin Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dublin Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Dublin to Seattle?

  • What is the most popular airline from Dublin to Seattle?

Best airlines flying from Dublin to Seattle

Compare and see reviews for airlines that fly from Dublin to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom £323Free CancellationRating
7.3
1,719 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom £372Free CancellationRating
6.7
7,799 reviews
Search British Airways flights
IcelandairPriceFrom £372Free CancellationRating
7.1
622 reviews
Search Icelandair flights
Aer LingusPriceFrom £401Free CancellationRating
7.2
1,477 reviews
Search Aer Lingus flights
American AirlinesPriceFrom £546Free CancellationRating
7.1
11,468 reviews
Search American Airlines flights
  • Aer Lingus Flights From Dublin to Seattle

    Aer Lingus is one of the most popular airlines flying from Dublin to Seattle, operating 1 flight/week on average for this route. A good Aer Lingus flight deal for Dublin to Seattle starts from £401 round-trip, up to an average price of £568. Our users have rated Aer Lingus at 7.2/10.

  • American Airlines Flights From Dublin to Seattle

    Another popular option for Dublin to Seattle flights is American Airlines (7.1/10, 11,468 ratings). American Airlines flies from Dublin to Seattle around 1 time per week, with deals starting from £546 round-trip and rising to an average price of around £675.

Travelling to a place near Seattle?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Dublin to Seattle for you.

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

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

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

momondo helps you find the best flight between Dublin and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Dublin 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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1 adult
Thu 16/4
Thu 23/4

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