Cheap flights from Dublin to Seattle from €315

If you’re not able to fly to Seattle in February, then September is your next best option. Flight prices from Dublin to Seattle during September average around €533.

Our data shows that Sunday is the least expensive day to fly to Seattle. Tickets to fly out on this day can be as low as €696. Flights from Dublin to Seattle on a Tuesday will generally be more expensive and average around €829. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

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 €619 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 €518 on momondo.

You could potentially save up to 3% on your flight if you consider stops on a Dublin to Seattle flight.

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 158 minutes.

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.

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.

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.

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

Flights via Amsterdam (AMS) offer the lowest average return price of €507.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 13h 25m.

Amsterdam (AMS) has the shortest average stopover time for this route: 1h 27m.

As of April 2026, there are 2 flights per day flying from Dublin to Seattle. The most common time of day flights depart is 15:00, with 100% of flights taking off in the afternoon.

The number of flights available between Dublin and Seattle is 17 per week as of April 2026. The most frequent departure day is Mon, with 24% of weekly flights leaving on this day.