Question 1

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

Accepted Answer

Flights via Reykjavik (KEF) offer the lowest average return price of £1,265.

Question 2

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 3

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

Accepted Answer

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

Question 4

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 5

How have Dublin to Seattle flight prices changed over time?

Accepted Answer

As of December 2025, prices for Dublin to Seattle flights are approximately 1% cheaper when compared to flights at the same time last year.

Question 6

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

Accepted Answer

As of December 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.

Question 7

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 8

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

Accepted Answer

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

Question 9

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 10

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 £532 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 £448 on momondo.

Question 11

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 12

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

Accepted Answer

London (LHR) was the most common stop: 71% of momondo users choosing one-stop flights on this route connected there.

Question 13

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

Accepted Answer

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 £536. 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 £599.

Question 14

Which airlines fly to Seattle?

Accepted Answer

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 54% 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 15

How often are flights from Dublin to Seattle delayed?

Accepted Answer

Historically, on average around 11% 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 141 minutes.

Question 16

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 11% of their flights experiencing any sort of delay.

Question 17

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 £458, 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 £473.

Question 18

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

Accepted Answer

The number of flights available between Dublin and Seattle is 1 per day as of December 2025. The most frequent departure time is 16:00, with 100% of daily flights leaving in the afternoon.

Question 19

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

Accepted Answer

London (LHR) has the shortest average stopover time for this route: 7h 47m.

Question 20

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 £565. 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 £745.

Question 21

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 22

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

Accepted Answer

As of December 2025, there are 5 operators available to choose from for flights from Dublin Airport to Seattle/Tacoma Intl Airport.

Question 23

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 24

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	£518
Fastest flight time	9h 50m
Direct flights	Tue and Sat
Airports in Seattle	1 airport

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom £321	Free Cancellation	Rating 7.4 1,606 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom £350	Free Cancellation	Rating 6.7 7,571 reviews	Search British Airways flights
Aer Lingus	PriceFrom £397	Free Cancellation	Rating 7.2 1,394 reviews	Search Aer Lingus flights
Icelandair	PriceFrom £405	Free Cancellation	Rating 7.0 589 reviews	Search Icelandair flights
American Airlines	PriceFrom £482	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights

Cheap flights from Dublin to Seattle from £311

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How to get the cheapest flight ticket from Dublin to 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 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 December 2025, prices for Dublin to Seattle flights are approximately 1% cheaper when compared to flights at the same time last year.

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

Aer Lingus and JetBlue 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 11% 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 141 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 11% 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: 71% 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 £1,265.

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 47m.

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 December 2025. The most frequent departure time is 16:00, with 100% of daily flights leaving in the afternoon.

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

As of December 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

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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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