£251 Find Cheap Flights from Seattle to Dublin – Compare and Save

Only Economy class is available on flights from Seattle to Dublin.

A direct flight from Seattle to Dublin takes 00m, covering 4,523 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from Seattle to Dublin range from £456 to £774, with an average of £583 over the past 12 months. Anything below £456 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 30% above the £583 route average. Book 21 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £375 return via Kastrup Copenhagen (CPH), compared with £634 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £41–£75 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Airbus A330-200 family is used most often on this route, operated mainly by Aer Lingus and American Airlines. Other aircraft seen on the route include Airbus A330-300 variants.

One-way fares from Seattle to Dublin are currently lower than usual. Average one-way flight prices are about £358, which is 12% below the typical average for this route.

Flights from Seattle to Dublin usually depart from Seattle/Tacoma Intl (SEA) and arrive at Dublin (DUB).

One-stop flights from Seattle to Dublin most commonly connect through:

• Reykjavik Keflavik Intl (KEF) – 57% of one-stop connections
• London Heathrow (LHR) – 16% of one-stop connections
• Toronto Pearson Intl (YYZ) – 5% of one-stop connections
• Istanbul (IST) – 5% of one-stop connections

Yes. Flexible dates can save you up to 22% on flights from Seattle to Dublin. Monday is the cheapest departure day at £539 return on average, while Thursday is the most expensive at £683, a difference of £144.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time of 12h 54m, compared to 13h 24m via Amsterdam Schiphol (AMS) and 13h 27m via Reykjavik Keflavik Intl (KEF).

Dublin is 7 hours ahead of Seattle (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Dublin are Croke Park, The Convention Centre Dublin, and 3Olympia Theatre. These are among the most viewed places in Dublin on KAYAK.

Among airlines operating Seattle to Dublin flights:

• Aer Lingus: offers extra legroom; offers free seat selection
• American Airlines: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Aer Lingus: a cabin bag and a checked bag in Economy class
• American Airlines: a cabin bag and a checked bag in Economy class
• Iberia: a cabin bag and a checked bag in Economy class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.