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

Return flights

17 Aug - 24 Aug	Spirit Airlines
17 Aug - 25 Aug	Brussels Airlines
11 Aug - 25 Aug	Icelandair
04 Aug - 18 Aug	Alaska Airlines
10 Aug - 14 Aug	Scandinavian Airlines
03 Aug - 09 Aug	Scandinavian Airlines

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

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 August from $619

Return flights