Cheapest return flights from Athens to Keflavik in September from $211

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

Return flights

30 Sep - 07 Oct easyJet
15 Sep - 24 Sep easyJet
15 Sep - 22 Sep easyJet
10 Sep - 17 Sep Scandinavian Airlines
25 Sep - 07 Oct easyJet
07 Sep - 13 Sep Scandinavian Airlines
01 Sep - 10 Sep Scandinavian Airlines
14 Sep - 21 Sep Scandinavian Airlines
02 Sep - 10 Sep Scandinavian Airlines
04 Sep - 13 Sep Scandinavian Airlines
18 Sep - 27 Sep Scandinavian Airlines

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

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