Cheapest return flights from Seattle to Dublin in October from $520

Best time to book flights for Seattle (SEA) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Dublin (DUB) in October 2025 (see full year).

Return flights

31 Oct - 07 Nov Aer Lingus direct
26 Oct - 02 Nov Aer Lingus direct
27 Oct - 03 Nov Aer Lingus direct
13 Oct - 29 Oct Icelandair
11 Oct - 15 Oct Icelandair
11 Oct - 18 Oct Icelandair
09 Oct - 16 Oct Icelandair
21 Oct - 29 Oct Aer Lingus direct
13 Oct - 29 Oct Aer Lingus direct
24 Oct - 31 Oct Aer Lingus direct
11 Oct - 15 Oct Aer Lingus direct
09 Oct - 16 Oct Aer Lingus direct
01 Oct - 08 Oct Aer Lingus direct

Also check the deals for one-way flights from Seattle to Dublin in October.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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