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

Return flights

17 Nov - 26 Nov	Icelandair
03 Nov - 12 Nov	Air Canada
10 Nov - 19 Nov	Air Canada
12 Nov - 19 Nov	KLM
08 Nov - 18 Nov	Delta
17 Nov - 24 Nov	Air Canada
12 Nov - 19 Nov	Aer Lingus	direct
03 Nov - 12 Nov	Aer Lingus	direct
17 Nov - 26 Nov	Aer Lingus	direct
10 Nov - 19 Nov	Aer Lingus	direct
28 Nov - 11 Dec	Delta
24 Nov - 01 Dec	Aer Lingus	direct
30 Nov - 07 Dec	Aer Lingus	direct

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

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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Cheapest return flights from Seattle to Dublin in November from $355

Return flights