AirHint found the following cheapest return flights from San Francisco (SFO) to Dublin (DUB) in December 2025 (see full year).

Return flights

09 Dec - 16 Dec	Aer Lingus	direct
27 Dec - 07 Jan	Scandinavian Airlines
14 Dec - 28 Dec	Scandinavian Airlines
15 Dec - 28 Dec	Scandinavian Airlines
26 Dec - 11 Jan	United
26 Dec - 11 Jan	Aer Lingus	direct
27 Dec - 06 Jan	Delta
15 Dec - 28 Dec	Aer Lingus	direct
27 Dec - 06 Jan	Aer Lingus	direct
27 Dec - 07 Jan	Aer Lingus	direct
29 Dec - 05 Jan	United
19 Dec - 10 Jan	Aer Lingus	direct
21 Dec - 03 Jan	Scandinavian Airlines
19 Dec - 03 Jan	Scandinavian Airlines
19 Dec - 26 Dec	Aer Lingus	direct
17 Dec - 30 Dec	Aer Lingus	direct

Also check the deals for one-way flights from San Francisco to Dublin in December.

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 San Francisco to Dublin in December from 410€

Return flights