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Cheapest one-way flights from Seattle (SEA) to Dublin (DUB), October

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Dates, airline, and price
Dates	Airline	Price
10 Oct	Icelandair
01 Oct	Icelandair
26 Oct	Aer Lingus
02 Oct	Air Canada
26 Oct	Aer Lingus Direct Flight
10 Oct	Aer Lingus Direct Flight
02 Oct	Aer Lingus Direct Flight
01 Oct	Aer Lingus Direct Flight

deals for return flights from Seattle to Dublin in October.

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Updated Jul 16, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Seattle (SEA) to Dublin (DUB), October

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