Cheapest return flights from Frankfurt to Keflavik in September from 241€

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

Return flights

16 Sep - 01 Oct Ryanair
10 Sep - 23 Sep Scandinavian Airlines
19 Sep - 22 Sep Air France
03 Sep - 13 Sep Scandinavian Airlines
04 Sep - 11 Sep Scandinavian Airlines
04 Sep - 14 Sep Scandinavian Airlines
19 Sep - 02 Oct LOT
02 Sep - 15 Sep Air France
20 Sep - 02 Oct LOT
12 Sep - 22 Sep Air France
06 Sep - 16 Sep KLM
18 Sep - 21 Sep Scandinavian Airlines
08 Sep - 22 Sep Scandinavian Airlines
22 Sep - 06 Oct Icelandair direct
24 Sep - 03 Oct easyJet
19 Sep - 01 Oct Lufthansa
17 Sep - 08 Oct Lufthansa
28 Sep - 09 Oct Icelandair direct
22 Sep - 01 Oct Icelandair direct
25 Sep - 03 Oct Lufthansa direct

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

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