What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

Which stopover airport has the shortest travel time from Dublin to Seattle?

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 16h 25m.

Which stopover airport has the shortest connection time from Dublin to Seattle?

London (LHR) has the shortest average stopover time for this route: 7h 54m.

What is the most punctual flight time for Dublin to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Which stopover airport offers the lowest fares from Dublin to Seattle?

Flights via Reykjavik (KEF) offer the lowest average return price of £1,286.

Which airline has the best punctuality record on Dublin to Seattle flights?

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

What is the cheapest airline that flies from Dublin to Seattle/Tacoma Intl?

WestJet, Aer Lingus, and Icelandair are the most popular carriers operating from Dublin to Seattle/Tacoma Intl

How often are flights from Dublin to Seattle delayed?

Historically, on average around 12% of flights between Dublin and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

Which airlines fly to Seattle?

Aer Lingus, Icelandair and British Airways are the top three most popular airlines that fly to Seattle from Dublin according to our data. Aer Lingus is the first choice among our users, with 53% of people opting to fly with this airline when travelling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular for stopovers for flights between Dublin and Seattle?

London (LHR) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

How many flights depart from Dublin to Seattle on average per week?

As of October 2025, there are 6 flights per week flying from Dublin to Seattle. The most common day of the week flights depart is Wed, with 50% of flights taking off on this day.

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?

As of October 2025, there are 5 operators available to choose from 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.

£346 Cheap Flights from Dublin to Seattle in 2025/26

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11:30 - 17:00DUB-SEA

13h 30m1 stop

14:35 - 10:15SEA-DUB

11h 40m1 stop

£358Icelandair

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Wed, 3 Dec - Sun, 14 Dec

10:45 - 12:30DUB-SEA

32h 45m1 stop

13:48 - 14:40SEA-DUB

16h 52m2 stops

£374American Airlines

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Mon, 23 Mar - Mon, 30 Mar

20:40 - 12:30DUB-SEA

22h 50m1 stop

14:35 - 10:55SEA-DUB

13h 20m1 stop

£376British Airways

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Thu, 19 Mar - Sat, 28 Mar

05:55 - 11:45DUB-SEA

13h 50m1 stop

13:40 - 15:45SEA-DUB

18h 05m1 stop

£383Delta

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Thu, 13 Nov - Tue, 18 Nov

05:55 - 12:35DUB-SEA

13h 40m1 stop

08:25 - 07:55SEA-DUB

15h 30m1 stop

£384KLM

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Thu, 26 Mar - Thu, 2 Apr

05:55 - 11:45DUB-SEA

13h 50m1 stop

09:30 - 15:45SEA-DUB

22h 15m2 stops

£385Delta

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Thu, 13 Nov - Tue, 18 Nov

05:55 - 11:45DUB-SEA

13h 50m1 stop

15:00 - 12:40SEA-DUB

13h 40m1 stop

£388KLM

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Thu, 13 Nov - Sun, 16 Nov

16:30 - 19:20DUB-SEA

9h 50mdirect

18:45 - 11:45SEA-DUB

9h 00mdirect

£414Aer Lingus

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Wed, 25 Mar - Wed, 1 Apr

16:30 - 18:20DUB-SEA

9h 50mdirect

00:38 - 05:10SEA-DUB

20h 32m1 stop

£450Aer Lingus

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Wed, 3 Dec - Sat, 13 Dec

08:45 - 23:25DUB-SEA

22h 40m2 stops

18:50 - 17:45SEA-DUB

14h 55m1 stop

£502British Airways

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Sun, 14 Dec - Thu, 1 Jan

Delta flights from Dublin to Seattle

Our best Delta deals on Dublin to Seattle flight tickets

Delta

13 Nov

DUB05:55Dublin

13h 50m

1 stop

SEA11:45Seattle/Tacoma Intl

18 Nov

SEA13:40Seattle/Tacoma Intl

18h 05m

1 stop

DUB15:45Dublin

£383

Find similar

Delta

13 Nov

DUB05:55Dublin

13h 50m

1 stop

SEA11:45Seattle/Tacoma Intl

18 Nov

SEA09:30Seattle/Tacoma Intl

22h 15m

2 stops

DUB15:45Dublin

£385

Find similar

Delta

22 Nov

DUB05:55Dublin

13h 50m

1 stop

SEA11:45Seattle/Tacoma Intl

29 Nov

SEA09:28Seattle/Tacoma Intl

14h 17m

1 stop

DUB07:45Dublin

£386

Find similar

United Airlines flights from Dublin to Seattle

Our best United Airlines deals on Dublin to Seattle flight tickets

United Airlines

7 Nov

DUB09:00Dublin

23h 59m

2 stops

SEA00:59Seattle/Tacoma Intl

22 Nov

SEA00:10Seattle/Tacoma Intl

23h 20m

1 stop

DUB07:30Dublin

£576

Find similar

United Airlines

7 Nov

DUB09:00Dublin

23h 59m

2 stops

SEA00:59Seattle/Tacoma Intl

23 Nov

SEA08:36Seattle/Tacoma Intl

17h 19m

2 stops

DUB09:55Dublin

£578

Find similar

United Airlines

7 Nov

DUB09:00Dublin

23h 59m

2 stops

SEA00:59Seattle/Tacoma Intl

23 Nov

SEA08:36Seattle/Tacoma Intl

17h 19m

2 stops

DUB09:55Dublin

£579

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Depart

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Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/12

11:30-17:00

1 stop13h 30m

Seattle/Tacoma Intl

Sun 14/12

14:35-10:15

1 stop11h 40m

£358

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 23/3

10:45-12:30

1 stop32h 45m

Seattle/Tacoma Intl

Mon 30/3

13:48-14:40

2 stops16h 52m

£374

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 19/3

20:40-12:30

1 stop22h 50m

Seattle/Tacoma Intl

Sat 28/3

14:35-10:55

1 stop13h 20m

£376

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 13/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Tue 18/11

13:40-15:45

1 stop18h 05m

£383

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 26/3

05:55-12:35

1 stop13h 40m

Seattle/Tacoma Intl

Thu 2/4

08:25-07:55

1 stop15h 30m

£384

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 13/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Tue 18/11

09:30-15:45

2 stops22h 15m

£385

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 13/11

05:55-11:45

1 stop13h 50m

Seattle/Tacoma Intl

Sun 16/11

15:00-12:40

1 stop13h 40m

£388

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 25/3

16:30-19:20

Nonstop9h 50m

Seattle/Tacoma Intl

Wed 1/4

18:45-11:45

Nonstop9h 00m

£414

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/12

16:30-18:20

Nonstop9h 50m

Seattle/Tacoma Intl

Sat 13/12

00:38-05:10

1 stop20h 32m

£450

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Sun 14/12

08:45-23:25

2 stops22h 40m

Seattle/Tacoma Intl

Thu 1/1

18:50-17:45

1 stop14h 55m

£502

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Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Stopovers

Other information

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 £465, 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 Dublin averaging around £480.

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 Dublin. 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 £757.

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 Dublin to Seattle in the morning for as low as £545. 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 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 £455 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 October 2025, prices for Dublin to Seattle flights are approximately 19% 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

Fastest flight time	9h 39m
Direct flights	Mon, Tue, Thu and Sat
Airports in Seattle	1 airport

The fastest flight from Dublin to Seattle takes 9h 39m

Direct flights go from Dublin to Seattle on Monday, Tuesday, Thursday and Saturday. There are no airlines offering direct flights..

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

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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 50m.
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?
As of October 2025, there are 5 operators available to choose from 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?
Based on momondo bookings for flights between Dublin and Seattle, the leading plane model is Airbus A330-200, making up 82.00% of the total bookings. Other popular models include Airbus A318/A319/A320/A321 with 6.00%, Airbus A321-100/200 with 2.67%, and Airbus A330-300 with 2.67%.
What is the most popular airline from Dublin to Seattle?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Dublin to Seattle is Aer Lingus (50% of total bookings). The next most popular airlines are Icelandair (27%), British Airways (10%), and American Airlines (7%).

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 Airlines	PriceFrom £326	Free Cancellation	Rating 7.4 1,548 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom £355	Free Cancellation	Rating 6.7 7,488 reviews	Search British Airways flights
Aer Lingus	PriceFrom £404	Free Cancellation	Rating 7.2 1,365 reviews	Search Aer Lingus flights
Icelandair	PriceFrom £421	Free Cancellation	Rating 7.1 562 reviews	Search Icelandair flights
American Airlines	PriceFrom £558	Free Cancellation	Rating 7.2 11,034 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 2 flights/week on average for this route. A good Aer Lingus flight deal for Dublin to Seattle starts from £404 round-trip, up to an average price of £582. 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 (7.2/10, 11,034 ratings). American Airlines flies from Dublin to Seattle around 2 times per week, with deals starting from £558 round-trip and rising to an average price of around £680.

Fife

Renton

SeaTac

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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Cheap flights from Dublin to Seattle from £358

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 3/12. 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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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?

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

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

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?

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 October 2025, prices for Dublin to Seattle flights are approximately 19% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Dublin to Seattle/Tacoma Intl?

WestJet, Aer Lingus, and Icelandair are the most popular carriers operating from Dublin to Seattle/Tacoma Intl

Which airlines fly to Seattle?

How often are flights from Dublin to Seattle delayed?

Historically, on average around 12% of flights between Dublin and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 129 minutes.

What is the most punctual flight time for Dublin to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Dublin to Seattle flights?

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

Which airport is the most popular for stopovers for flights between Dublin and Seattle?

London (LHR) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from Dublin to Seattle?

Flights via Reykjavik (KEF) offer the lowest average return price of £1,286.

Which stopover airport has the shortest travel time from Dublin to Seattle?

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 16h 25m.

Which stopover airport has the shortest connection time from Dublin to Seattle?

London (LHR) has the shortest average stopover time for this route: 7h 54m.

How many flights depart from Dublin to Seattle on average per week?

As of October 2025, there are 6 flights per week flying from Dublin to Seattle. The most common day of the week flights depart is Wed, with 50% of flights taking off on this day.

When to book flights from Dublin to Seattle

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

Direct flights

Airports in Seattle

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

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

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?

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

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

Aer Lingus Flights From Dublin to Seattle

American Airlines Flights From Dublin to Seattle

Travelling to a place near Seattle?

Why use momondo?

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

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

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

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