What airlines fly to Seattle?

Aer Lingus, Icelandair and American Airlines 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 71% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

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

As of November 2025, there are 12 flights per week flying from Dublin to Seattle. The most common day of the week flights depart is Mon, with 25% of flights taking off on this day.

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

The number of flights available between Dublin and Seattle is 1 per day as of November 2025. The most frequent departure time is 4:00PM, with 100% of daily flights leaving in the afternoon.

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

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

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

WestJet and Aer Lingus 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 133 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 in the early afternoon have, in the past, seen delays more frequently in comparison.

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?

As of November 2025, there are 3 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 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.

$360 Cheap Flights from Dublin to Seattle in 2025/26

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Cheap round-trip flights

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11:30 am - 5:00 pmDUB-SEA

13h 30m1 stop

2:35 pm - 10:15 amSEA-DUB

11h 40m1 stop

$463Icelandair

Find Deal

Wed, Jan 21 - Wed, Jan 28

11:30 am - 5:00 pmDUB-SEA

13h 30m1 stop

2:35 pm - 10:15 amSEA-DUB

11h 40m1 stop

$467Icelandair

Find Deal

Mon, Jan 12 - Sat, Jan 17

11:30 am - 5:00 pmDUB-SEA

13h 30m1 stop

2:35 pm - 10:15 amSEA-DUB

11h 40m1 stop

$470Icelandair

Find Deal

Wed, Jan 28 - Sat, Feb 7

11:30 am - 5:00 pmDUB-SEA

13h 30m1 stop

2:35 pm - 10:15 amSEA-DUB

11h 40m1 stop

$471Icelandair

Find Deal

Wed, Jan 28 - Sat, Feb 7

10:20 am - 5:55 pmDUB-SEA

14h 35m1 stop

7:50 pm - 5:00 pmSEA-DUB

14h 10m1 stop

$473British Airways

Find Deal

Wed, Mar 11 - Wed, Mar 18

11:30 am - 5:00 pmDUB-SEA

13h 30m1 stop

2:35 pm - 10:15 amSEA-DUB

11h 40m1 stop

$474Icelandair

Find Deal

Wed, Jan 28 - Sat, Feb 7

11:30 am - 5:00 pmDUB-SEA

13h 30m1 stop

2:35 pm - 10:15 amSEA-DUB

11h 40m1 stop

$481Icelandair

Find Deal

Thu, Dec 4 - Tue, Dec 9

8:50 am - 4:55 pmDUB-SEA

16h 05m1 stop

6:50 pm - 4:50 pmSEA-DUB

14h 00m1 stop

$492American Airlines

Find Deal

Wed, Feb 4 - Sun, Feb 8

10:20 am - 4:55 pmDUB-SEA

14h 35m1 stop

8:04 am - 4:50 pmSEA-DUB

24h 46m2 stops

$493American Airlines

Find Deal

Wed, Feb 4 - Sun, Feb 8

10:20 am - 4:55 pmDUB-SEA

14h 35m1 stop

6:50 pm - 7:45 pmSEA-DUB

16h 55m1 stop

$495British Airways

Find Deal

Wed, Jan 21 - Wed, Jan 28

American Airlines flights from Dublin to Seattle

Our best American Airlines deals on Dublin to Seattle flight tickets

American Airlines

Feb 4

DUB8:50 amDublin

16h 05m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

Feb 8

SEA6:50 pmSeattle/Tacoma Intl

14h 00m

1 stop

DUB4:50 pmDublin

$492

Find similar

American Airlines

Feb 4

DUB10:20 amDublin

14h 35m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

Feb 8

SEA6:50 pmSeattle/Tacoma Intl

31h 00m

1 stop

DUB9:50 amDublin

$493

Find similar

American Airlines

Nov 26

DUB11:30 amDublin

18h 40m

1 stop

SEA10:10 pmSeattle/Tacoma Intl

Dec 5

SEA11:22 amSeattle/Tacoma Intl

21h 38m

2 stops

DUB5:00 pmDublin

$502

Find similar

Aer Lingus flights from Dublin to Seattle

Our best Aer Lingus deals on Dublin to Seattle flight tickets

Aer Lingus

Nov 28

DUB4:30 pmDublin

9h 50m

SEA6:20 pmSeattle/Tacoma Intl

Dec 14

SEA8:05 pmSeattle/Tacoma Intl

9h 05m

DUB1:10 pmDublin

$511

Find similar

Aer Lingus

Dec 3

DUB4:30 pmDublin

9h 50m

SEA6:20 pmSeattle/Tacoma Intl

Dec 12

SEA8:05 pmSeattle/Tacoma Intl

9h 05m

DUB1:10 pmDublin

$512

Find similar

Aer Lingus

Dec 1

DUB4:30 pmDublin

9h 50m

SEA6:20 pmSeattle/Tacoma Intl

Dec 15

SEA8:05 pmSeattle/Tacoma Intl

9h 05m

DUB1:10 pmDublin

$514

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 1/21

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Wed 1/28

2:35 pm-10:15 am

1 stop11h 40m

$463

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Mon 1/12

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Sat 1/17

2:35 pm-10:15 am

1 stop11h 40m

$467

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 1/28

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Sat 2/7

2:35 pm-10:15 am

1 stop11h 40m

$470

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 1/28

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Sat 2/7

2:35 pm-10:15 am

1 stop11h 40m

$471

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 3/11

10:20 am-5:55 pm

1 stop14h 35m

Seattle/Tacoma Intl

Wed 3/18

7:50 pm-5:00 pm

1 stop14h 10m

$473

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 1/28

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Sat 2/7

2:35 pm-10:15 am

1 stop11h 40m

$474

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Thu 12/4

11:30 am-5:00 pm

1 stop13h 30m

Seattle/Tacoma Intl

Tue 12/9

2:35 pm-10:15 am

1 stop11h 40m

$481

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 2/4

8:50 am-4:55 pm

1 stop16h 05m

Seattle/Tacoma Intl

Sun 2/8

6:50 pm-4:50 pm

1 stop14h 00m

$492

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 2/4

10:20 am-4:55 pm

1 stop14h 35m

Seattle/Tacoma Intl

Sun 2/8

8:04 am-4:50 pm

2 stops24h 46m

$493

DublinSeattle

DUB - SEA

DUBSEA

Dublin

Wed 1/21

10:20 am-4:55 pm

1 stop14h 35m

Seattle/Tacoma Intl

Wed 1/28

6:50 pm-7:45 pm

1 stop16h 55m

$495

Flights are sorted by cheapest round-trip flights first.

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

Other information

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 $630.

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 $635. 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 time of day to depart on your flight to Seattle?

Flying to Seattle from Dublin in the morning is the least expensive time of day to depart. momondo users have found prices as low as $750 when looking at flights departing in the morning. Flights to Seattle are more costly in the afternoon, with an average ticket price of $771. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $713 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 $600 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 25% 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 November 2025, prices for Dublin to Seattle flights are approximately 8% 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

Best Price Found	$643
Fastest flight time	9h 39m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Dublin in the past 72 hours is $643. The best round-trip flight deal from Dublin to Seattle found on momondo in the last 72 hours is $562.

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

Direct flights go from Dublin to Seattle every day.

There is 1 airport near Seattle: 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 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 refresh daily.
How many operators does momondo search for flights from Dublin Airport to Seattle/Tacoma Intl Airport?
As of November 2025, there are 3 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 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?
Based on momondo bookings for flights between Dublin and Seattle, the leading plane model is Airbus A330-200, making up 83.01% of the total bookings. Other popular models include Airbus A318/A319/A320/A321 with 6.54%, Airbus A321-100/200 with 2.61%, and Airbus A330-300 with 2.61%.
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 (71% of total bookings). The next most popular airlines are Icelandair (17%) and American Airlines (12%).

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 Lingus	PriceFrom $525	Free Cancellation	Rating 7.2 1,377 reviews	Search Aer Lingus flights
Icelandair	PriceFrom $556	Free Cancellation	Rating 7.0 581 reviews	Search Icelandair flights
American Airlines	PriceFrom $640	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights

Aer Lingus Flights From Dublin to Seattle
Across 4 Aer Lingus flights from Dublin to Seattle this week, the average price was $702, with the best Aer Lingus deals starting from $525 round-trip. 1,377 users have rated Aer Lingus on momondo, with an average score of 7.2/10.
American Airlines Flights From Dublin to Seattle
$640 is the best American Airlines flight deal from Dublin to Seattle found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $860, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 11,047 user reviews) flies into Seattle from Dublin 4 times in an average week so prices can vary.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

Kirkland

Westport

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.

An easier way to manage your Seattle trip

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Cheap flights from Dublin to Seattle from $360

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 2/6. 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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American Airlines flights from Dublin to Seattle

Our best American Airlines deals on Dublin to Seattle flight tickets

Aer Lingus flights from Dublin to Seattle

Our best Aer Lingus deals on Dublin to Seattle flight tickets

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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 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 25% 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 November 2025, prices for Dublin to Seattle flights are approximately 8% 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 and Aer Lingus are the most popular carriers operating from Dublin to Seattle/Tacoma Intl

What 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 133 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 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?

Tuesday is statistically the day of the week which experiences the fewest number of 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, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

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

The number of flights available between Dublin and Seattle is 1 per day as of November 2025. The most frequent departure time is 4:00PM, with 100% of daily flights leaving in the afternoon.

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

As of November 2025, there are 12 flights per week flying from Dublin to Seattle. The most common day of the week flights depart is Mon, with 25% 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

Best Price Found

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

Traveling 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?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States