Cheapest return SAN–KEF flights, October

AirHint found the following cheapest return flights from San Diego (SAN) to Keflavik (KEF) in October 2026 (see full year).

Return flights

17 Oct - 24 Oct Southwest Airlines
12 Oct - 21 Oct Icelandair

Also check the deals for one-way flights from San Diego to Keflavik in October.

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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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