AirHint found the following cheapest return flights from Santa Ana (SNA) to Keflavik (KEF) in October 2025 (see full year).

Return flights

27 Oct - 03 Nov	Alaska Airlines
29 Oct - 05 Nov	Alaska Airlines
28 Oct - 04 Nov	Icelandair
20 Oct - 27 Oct	Alaska Airlines
17 Oct - 24 Oct	Alaska Airlines
13 Oct - 20 Oct	Alaska Airlines
05 Oct - 12 Oct	Alaska Airlines
26 Oct - 02 Nov	Alaska Airlines
16 Oct - 23 Oct	Alaska Airlines
30 Oct - 06 Nov	Alaska Airlines
23 Oct - 30 Oct	Alaska Airlines
31 Oct - 07 Nov	Alaska Airlines
08 Oct - 13 Oct	Icelandair
06 Oct - 13 Oct	Icelandair
12 Oct - 19 Oct	Alaska Airlines
07 Oct - 14 Oct	Icelandair
25 Oct - 01 Nov	Alaska Airlines

Also check the deals for one-way flights from Santa Ana to Keflavik in October.

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 Keflavik in October from 879€

Return flights