Cheapest return flights from San Jose to Keflavik in April from $1041

AirHint found the following cheapest return flights from San Jose (SJC) to Keflavik (KEF) in April 2026 (see full year).

Return flights

10 Apr - 26 Apr Alaska Airlines
04 Apr - 25 Apr Icelandair
03 Apr - 25 Apr Icelandair

Also check the deals for one-way flights from San Jose to Keflavik in April.

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