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Cheap flights from Dublin to Seattle from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dublin to Seattle departing on 4/27. 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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0 bags

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Find the cheapest flights from Dublin to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
12:15 pm - 8:40 pm
DUB
-
SEA
16h 25m
1 stop
Icelandair Logo
3:40 pm - 1:15 pm
SEA
-
DUB
13h 35m
1 stop
$434Icelandair
Fri, Apr 10 - Fri, Apr 17
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
2:35 pm - 10:15 am
SEA
-
DUB
11h 40m
1 stop
$435Icelandair
Thu, Feb 26 - Thu, Mar 5
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
2:35 pm - 10:15 am
SEA
-
DUB
11h 40m
1 stop
$437Icelandair
Tue, Feb 10 - Tue, Feb 24
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
2:35 pm - 10:15 am
SEA
-
DUB
11h 40m
1 stop
$438Icelandair
Thu, Jan 29 - Mon, Feb 2
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
2:35 pm - 10:15 am
SEA
-
DUB
11h 40m
1 stop
$442Icelandair
Thu, Feb 5 - Mon, Feb 9
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
2:35 pm - 10:15 am
SEA
-
DUB
11h 40m
1 stop
$444Icelandair
Mon, Feb 2 - Tue, Feb 17
Icelandair Logo
11:30 am - 5:00 pm
DUB
-
SEA
13h 30m
1 stop
Icelandair Logo
2:35 pm - 10:15 am
SEA
-
DUB
11h 40m
1 stop
$445Icelandair
Mon, Feb 2 - Tue, Feb 17
British Airways Logo
4:00 pm - 11:30 am
DUB
-
SEA
27h 30m
1 stop
British Airways Logo
7:21 am - 9:50 am
SEA
-
DUB
19h 29m
2 stops
$486British Airways
Mon, Feb 23 - Mon, Mar 9
British Airways Logo
8:50 am - 4:55 pm
DUB
-
SEA
16h 05m
1 stop
British Airways Logo
6:50 pm - 4:50 pm
SEA
-
DUB
14h 00m
1 stop
$488British Airways
Wed, Feb 11 - Sun, Feb 15
Multiple Airlines Logo
11:30 am - 9:57 pm
DUB
-
SEA
18h 27m
1 stop
Multiple Airlines Logo
7:20 am - 8:40 am
SEA
-
DUB
18h 20m
2 stops
$494Multiple Airlines
Mon, Feb 23 - Sun, Mar 8

Icelandair flights from Dublin to Seattle

Our best Icelandair deals on Dublin to Seattle flight tickets
Icelandair
Apr 10
DUB12:15 pmDublin
16h 25m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Apr 17
SEA3:40 pmSeattle/Tacoma Intl
13h 35m
1 stop
DUB1:15 pmDublin
$434
Icelandair
Feb 26
DUB11:30 amDublin
13h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Mar 5
SEA2:35 pmSeattle/Tacoma Intl
11h 40m
1 stop
DUB10:15 amDublin
$435
Icelandair
Feb 10
DUB11:30 amDublin
13h 30m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Feb 24
SEA2:35 pmSeattle/Tacoma Intl
11h 40m
1 stop
DUB10:15 amDublin
$437

United Airlines flights from Dublin to Seattle

Our best United Airlines deals on Dublin to Seattle flight tickets
United Airlines
Jan 21
DUB9:00 amDublin
21h 16m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
Jan 27
SEA5:00 amSeattle/Tacoma Intl
18h 30m
2 stops
DUB7:30 amDublin
$789
United Airlines
Jan 21
DUB9:00 amDublin
19h 57m
2 stops
SEA8:57 pmSeattle/Tacoma Intl
Jan 25
SEA7:00 amSeattle/Tacoma Intl
16h 30m
2 stops
DUB7:30 amDublin
$795
United Airlines
Jan 16
DUB9:00 amDublin
21h 16m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
Jan 24
SEA5:00 amSeattle/Tacoma Intl
18h 30m
2 stops
DUB7:30 amDublin
$868

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated January 14, 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

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Fri 4/10

12:15 pm-8:40 pm

1 stop16h 25m

Seattle/Tacoma Intl

Fri 4/17

3:40 pm-1:15 pm

1 stop13h 35m

$434

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 2/26

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Thu 3/5

2:35 pm-10:15 am

1 stop11h 40m

$435

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Tue 2/10

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Tue 2/24

2:35 pm-10:15 am

1 stop11h 40m

$437

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 1/29

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Mon 2/2

2:35 pm-10:15 am

1 stop11h 40m

$438

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 2/5

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Mon 2/9

2:35 pm-10:15 am

1 stop11h 40m

$442

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/2

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Tue 2/17

2:35 pm-10:15 am

1 stop11h 40m

$444

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/2

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Tue 2/17

2:35 pm-10:15 am

1 stop11h 40m

$445

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/23

4:00 pm-11:30 am

1 stop27h 30m

Seattle/Tacoma Intl

Mon 3/9

7:21 am-9:50 am

2 stops19h 29m

$486

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 2/11

8:50 am-4:55 pm

1 stop16h 05m

Seattle/Tacoma Intl

Sun 2/15

6:50 pm-4:50 pm

1 stop14h 00m

$488

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 2/23

11:30 am-9:57 pm

1 stop18h 27m

Seattle/Tacoma Intl

Sun 3/8

7:20 am-8:40 am

2 stops18h 20m

$494

Flights are sorted by cheapest round-trip 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 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?

In general, February is the cheapest month to fly from Dublin to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $613. If you don’t want to visit Seattle in February, then you should wait until November to fly from Dublin, when ticket prices are also cheap, with an average price of $633.

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

On average, the least expensive day to fly to Seattle from Dublin is on a Sunday. momondo users have found tickets for Sunday departures for as low as $613. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Dublin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $997.

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 $720 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Dublin for as low as $686 on momondo.

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

There are 3 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 39% 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 January 2026, prices for Dublin to Seattle flights are approximately 18% 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 round-trip 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

Fastest flight time

9h 45m

Direct flights

Every day

Airports in Seattle

1 airport
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).
Search flight deals

  • How far is Dublin to Seattle/Tacoma Intl by plane?

    Dublin and Seattle/Tacoma Intl are 4518.4 mi apart from one another. A reasonable flight in good conditions will take 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 refresh daily.

  • 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 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 license 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 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
Aer LingusPriceFrom $523Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Redmond
Tukwila
Cle Elum
Lakewood
Federal Way
Fife
Kirkland
Westport
Centralia
Shoreline

Why use momondo?

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

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

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

Flights from Dublin to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Dublin 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 Dublin to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Dublin and alert you when they change.

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