C$ 395 Find Cheap Flights from Seattle to Dublin – Compare and Save

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.

Only Aer Lingus operates flights between Seattle and Dublin.

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

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

• Aer Lingus: a carry-on bag and a checked bag in Economy Class
• British Airways: a carry-on bag and a checked bag in Economy Class
• American Airlines: a carry-on bag and a checked bag in Economy Class

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

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

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 637 round-trip via Montreal Pierre Elliott Trudeau Intl (YUL), compared to C$ 1,075 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 76–C$ 139 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 British Airways. Other aircraft seen on the route include Airbus A330-900neo variants.

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

• Reykjavik Keflavik Intl (KEF) – 63% of one-stop connections
• London Heathrow (LHR) – 11% of one-stop connections
• Istanbul (IST) – 4% of one-stop connections
• Toronto Pearson Intl (YYZ) – 4% of one-stop connections

Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 18% on the Seattle to Dublin route. Wednesday is the cheapest departure day at C$ 949 round-trip on average, while Thursday is the most expensive at C$ 1,145, a difference of C$ 196. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Some of the most popular sights in Dublin are Dublin City Centre, St. Stephen's Green, and Trinity College. These are among the most viewed places in Dublin on KAYAK.

These are the earliest and latest flight times available from Seattle to Dublin:

• Earliest: departs at 7:10 pm and lands at 4:16 am
• Latest: departs at 7:10 pm and lands at 4:16 am.

The flight takes about 9h 06m.

Last-minute fares on this route – booked within 2 weeks of departure – run 25% above the route average of C$ 1,015. Book 26 weeks before departure for the lowest fares.

A direct flight from Seattle to Dublin takes 9h 06m, covering 11,714 km.

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.

One-way fares from Seattle to Dublin are currently lower than usual. Average one-way flight prices are about C$ 468, which is 38% below the typical average for this route.

Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 13h 03m, compared with 13h 23m via Amsterdam Schiphol (AMS) and 13h 30m via Reykjavik Keflavik Intl (KEF).

Dublin is 8 hours ahead of Seattle (Irish Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

Dublin Airport (DUB) hosts 5 major car rental companies, with daily rates starting from around C$ 5 for economy cars. Top options include:
• Budget
• Sixt
• Easirent
• Europcar
• Thrifty

Round-trip flights from Seattle to Dublin range from C$ 752 to C$ 1,356, with an average of C$ 1,015 over the past 12 months. Anything below C$ 752 counts as a good deal.