£243 Find Cheap Flights from Seattle to Dublin – Compare and Save

If you are looking for a flight deal from Seattle to Dublin, look for departures on Sundays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Dublin, Wednesday is the cheapest day to fly and Tuesday is the most expensive.

The cheapest month for flights from Seattle to Dublin is February, where tickets cost £345 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £817 and £683 respectively.

No, with an average price for the route of £361, prices are generally cheapest when you fly direct.

To get a below average price on the flight from Seattle to Dublin, you should book around 2 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

In the past 5 days, the cheapest return tickets from Seattle to Dublin were found on Delta (£519) and Finnair (£524).

There is just one airline that flies from Seattle to Dublin direct and that is Aer Lingus. The best return deal found from Aer Lingus for the route is £314.

London (LHR) is the top choice – 50% of KAYAK users who clicked on one-stop flights from Seattle to Dublin picked an itinerary connecting there.

Flights via Reykjavik (KEF) offer the most affordable fares, with an average price of £412 for a return.

Consider flying via Reykjavik (KEF) for the shortest journey. The average one-way travel time for flights connecting there is 11h 30m.

If you prefer a quick connection, Reykjavik (KEF) often has the shortest stopovers from Seattle to Dublin, with an average time of 1h 28m.

There is only one cabin class option available for the route, which is Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

There is a maximum of 1 direct flight a day that takes off from Seattle and lands in Dublin, with an average flight time of 9h 10m. The most common departure time is 19:00 and most flights take off in the evening. Each week, there are 7 flights.