AirHint found the following cheapest return flights from Santa Ana (SNA) to Dublin (DUB) in September 2025 (see full year).

Return flights

01 Sep - 16 Sep	Aer Lingus
21 Sep - 07 Oct	Aer Lingus
01 Sep - 08 Sep	Aer Lingus
21 Sep - 28 Sep	Aer Lingus
14 Sep - 27 Sep	Icelandair
07 Sep - 14 Sep	Icelandair
19 Sep - 03 Oct	Icelandair
19 Sep - 05 Oct	Icelandair
06 Sep - 20 Sep	Icelandair
23 Sep - 30 Sep	Icelandair
25 Sep - 02 Oct	Icelandair
25 Sep - 30 Sep	Icelandair

Also check the deals for one-way flights from Santa Ana to Dublin in September.

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 Santa Ana to Dublin in September from $780

Return flights