Cheapest return flights from San Francisco to Keflavik in August from $737

AirHint found the following cheapest return flights from San Francisco (SFO) to Keflavik (KEF) in August 2026 (see full year).

Return flights

15 Aug - 31 Aug Scandinavian Airlines
15 Aug - 30 Aug Scandinavian Airlines
11 Aug - 21 Aug WestJet
10 Aug - 17 Aug WestJet
09 Aug - 17 Aug SWISS
06 Aug - 13 Aug WestJet
07 Aug - 13 Aug WestJet
08 Aug - 16 Aug WestJet
09 Aug - 16 Aug WestJet
07 Aug - 15 Aug WestJet

Also check the deals for one-way flights from San Francisco to Keflavik in August.

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