Cheapest return flights from San Francisco to Keflavik in September from 661€

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

Return flights

01 Sep - 08 Sep jetBlue
07 Sep - 14 Sep jetBlue
08 Sep - 15 Sep jetBlue
09 Sep - 16 Sep jetBlue
11 Sep - 18 Sep jetBlue
02 Sep - 09 Sep jetBlue
06 Sep - 13 Sep jetBlue
10 Sep - 17 Sep Scandinavian Airlines
05 Sep - 12 Sep jetBlue
03 Sep - 10 Sep Scandinavian Airlines

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

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