AirHint found the following cheapest return flights from San Francisco (SFO) to Dublin (DUB) in May 2026 (see full year).

Return flights

05 May - 19 May	Scandinavian Airlines
10 May - 24 May	Scandinavian Airlines
14 May - 25 May	Scandinavian Airlines
09 May - 25 May	Scandinavian Airlines
11 May - 25 May	Scandinavian Airlines
13 May - 25 May	Scandinavian Airlines
06 May - 13 May	Aer Lingus	direct
05 May - 19 May	Aer Lingus	direct
24 May - 10 Jun	Scandinavian Airlines
11 May - 25 May	Aer Lingus	direct
13 May - 25 May	Aer Lingus	direct
24 May - 10 Jun	Aer Lingus	direct

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

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 May from $473

Return flights