$413 Cheap British Airways flights Seattle (SEA) to Dublin (DUB)

View $413 flight on Wed, Oct 29, 2025Opens in a new window

$413 Cheap British Airways flights Seattle (SEA) to Dublin (DUB)

Prices were available within the past 7 days and start at $413 for one-way flights and $394 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Tue, Oct 28 - Tue, Nov 4
SEA
Seattle
DUB
Dublin
$394 Roundtrip, found 14 hours ago
$394
Roundtrip
found 14 hours ago
Select British Airways flight, departing Tue, Oct 28 from Seattle to Dublin, returning Tue, Nov 4, priced at $394 found 14 hours ago
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Flights from Seattle (SEA) to Dublin (DUB)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, Turkish Airlines, United, WestJet
Popular airline
British Airways
Distance
4526 mi

Frequently asked questions

How much is a British Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
Finding cheap one-way British Airways flights from SEA to DUB from $413 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $394 for your next exciting adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to DUB with British Airways?
January is one of the most affordable months to jet away to Dublin with British Airways. You could also find great prices on return and one-way tickets in February.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB) with British Airways?
Look for British Airways flights from SEA to DUB about one month before you want to go. The most affordable time to reserve an international flight is generally 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. No matter your itinerary or ticket type, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Passengers booking on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does British Airways fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
Select our "Nonstop" filter when searching for direct British Airways flights from SEA to DUB. It's also an easy way to compare other carriers offering the same nonstop trip.
What is the earliest British Airways flight from SEA to DUB?
To find the earliest departure from SEA to DUB with British Airways, sort your results by "Morning" and "Early Morning." Booking an early flight generally means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does British Airways fly into in Dublin?
Dublin Airport (DUB) is the main Dublin hub for British Airways flights from Seattle - Tacoma Intl. Airport (SEA).
What kind of luggage can I take on a British Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
For checked luggage, you can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 29 inches x 15 inches x 16 inches. You can also travel with 2 cabin bags on board when flying standard economy from SEA to DUB with British Airways. This carry-on must weigh less than 50 lb and be no bigger than 19 inches x 9 inches x 17 inches. Going over these limits can mean extra charges, so read British Airways's baggage allowance guidelines before you pack.
Why fly with British Airways from SEA to DUB?
Offering a 4-star airline rating and an excellent in-flight experience, British Airways is a favorite for many passengers flying from SEA to DUB. What's more, if you're a British Airways Executive Club and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my British Airways flight from Seattle - Tacoma Intl. Airport (SEA) to Dublin Airport (DUB)?
Changes are usually free within 24 hours of making your booking, but your airline may charge you after that. For further details about altering your flights, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to adjust your plans without additional costs, tick the "No cancel fee" or "Changes included" filter when organizing your next trip.

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*Available to One Key members.