Question 1

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

Accepted Answer

Fly from Dublin to Seattle/Tacoma Intl for the best Dublin - Seattle/Tacoma Intl flight prices

Question 2

Which airlines fly to Seattle?

Accepted Answer

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 56% 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.

Question 3

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

Accepted Answer

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.

Question 4

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

Accepted Answer

Amsterdam (AMS) has the shortest average stopover time for this route: 2h 33m.

Question 5

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

Accepted Answer

WestJet and Finnair are the most popular carriers operating from Dublin to Seattle/Tacoma Intl

Question 6

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

Accepted Answer

According to our data, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

Question 7

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

Accepted Answer

London (LHR) was the most common stop: 63% of momondo users choosing one-stop flights on this route connected there.

Question 8

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

Accepted Answer

Flights via Amsterdam (AMS) offer the lowest average return price of £675.

Question 9

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

Accepted Answer

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 £546. 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.

Question 10

Can stopping save me money on Dublin to Seattle flights?

Accepted Answer

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

Question 11

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

Accepted Answer

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 13h 14m.

Question 12

How often are flights from Dublin to Seattle delayed?

Accepted Answer

Historically, on average around 9% 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 159 minutes.

Question 13

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

Accepted Answer

Tuesday 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.

Question 14

How have Dublin to Seattle flight prices changed over time?

Accepted Answer

As of January 2026, prices for Dublin to Seattle flights are approximately 17% more expensive when compared to flights at the same time last year.

Question 15

What is the cheapest month to fly to Seattle?

Accepted Answer

The cheapest month to fly to Seattle from Dublin is in February. Flight prices, which tend to average around £451, 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 £461.

Question 16

How far in advance should I book a flight to Seattle?

Accepted Answer

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 £525 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 £499 on momondo.

Question 17

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

Accepted Answer

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.

Question 18

What is the typical price of a round-trip flight between Dublin and Seattle?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from £371 to £562.
The lowest price recently found on this route was £326.

Question 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

As of January 2026, there are 5 operators available to choose from for flights from Dublin Airport to Seattle/Tacoma Intl Airport.

Question 21

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

Accepted Answer

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.

Question 22

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

Accepted Answer

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.

Best price found	£466
Fastest flight time	9h 45m
Direct flights	Thu, Sat and Sun
Airports in Seattle	1 airport

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom £313	Free Cancellation	Rating 7.3 1,672 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom £373	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
Aer Lingus	PriceFrom £401	Free Cancellation	Rating 7.2 1,442 reviews	Search Aer Lingus flights
Icelandair	PriceFrom £417	Free Cancellation	Rating 7.1 603 reviews	Search Icelandair flights
American Airlines	PriceFrom £528	Free Cancellation	Rating 7.2 11,199 reviews	Search American Airlines flights

Cheap flights from Dublin to Seattle from £255

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 28/5. 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

What is the typical price of a round-trip flight between Dublin and Seattle?

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 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 January 2026, prices for Dublin to Seattle flights are approximately 17% 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 Finnair 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 9% 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 159 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?

Tuesday 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, Aer Lingus have had the fewest delays on this route over the last 12 months, with about 9% 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: 63% 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 Amsterdam (AMS) offer the lowest average return price of £675.

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

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 13h 14m.

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

Amsterdam (AMS) has the shortest average stopover time for this route: 2h 33m.

When to book flights from Dublin to Seattle

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

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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?

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What is the most popular airline from Dublin to Seattle?

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