Flights to Leinster from Seattle - $349

View $349 flight on Mon, Oct 20, 2025Opens in a new window

Popular airlines from Seattle to Leinster

  • Lufthansa

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  • British Airways

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  • Icelandair

    Icelandair

  • Aer Lingus

    Aer Lingus

  • Air Canada

    Air Canada

  • Iberia

    Iberia

  • Finnair

    Finnair

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Cheap Flights from Seattle to Leinster (SEA-DUB)

Prices were available within the past 7 days and start at $349 for one-way flights and $348 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 12 - Wed, Nov 26
SEA
Seattle
DUB
Dublin
$348 Roundtrip, found 12 hours ago
$348
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Nov 12 from Seattle to Dublin, returning Wed, Nov 26, priced at $348 found 12 hours ago
Air Canada
Tue, Oct 28 - Fri, Nov 7
SEA
Seattle
DUB
Dublin
$350 Roundtrip, found 17 hours ago
$350
Roundtrip
found 17 hours ago
Select Air Canada flight, departing Tue, Oct 28 from Seattle to Dublin, returning Fri, Nov 7, priced at $350 found 17 hours ago
United
Mon, Nov 10 - Fri, Nov 21
SEA
Seattle
DUB
Dublin
$359 Roundtrip, found 5 days ago
$359
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 10 from Seattle to Dublin, returning Fri, Nov 21, priced at $359 found 5 days ago
Delta
Wed, Oct 22 - Thu, Nov 20
SEA
Seattle
DUB
Dublin
$363 Roundtrip, found 1 day ago
$363
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 22 from Seattle to Dublin, returning Thu, Nov 20, priced at $363 found 1 day ago
American Airlines
Wed, Oct 22 - Thu, Nov 20
SEA
Seattle
DUB
Dublin
$363 Roundtrip, found 1 day ago
$363
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 22 from Seattle to Dublin, returning Thu, Nov 20, priced at $363 found 1 day ago
Iberia
Wed, Aug 13 - Fri, Aug 22
SEA
Seattle
DUB
Dublin
$368 Roundtrip, found 22 hours ago
$368
Roundtrip
found 22 hours ago
Select Iberia flight, departing Wed, Aug 13 from Seattle to Dublin, returning Fri, Aug 22, priced at $368 found 22 hours ago

Find the cheapest month to fly from Seattle (SEA) to Dublin (DUB)

November is typically the cheapest month to fly

From $332 - $876 per traveler.

Graph displaying average flight prices per month

Alternative airports

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest option available. Flights from $638
DUB
Dublin Airport
Cheapest
Flights from $638
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