Cheapest return CPH–KEF flights, September

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

Return flights

09 Sep - 16 Sep Ryanair
05 Sep - 08 Sep Ryanair
24 Sep - 06 Oct Ryanair
24 Sep - 02 Oct Ryanair
19 Sep - 22 Sep Scandinavian Airlines direct
12 Sep - 15 Sep Scandinavian Airlines direct
13 Sep - 17 Sep Scandinavian Airlines direct
12 Sep - 17 Sep Scandinavian Airlines direct
25 Sep - 05 Oct LOT
03 Sep - 10 Sep Scandinavian Airlines
10 Sep - 17 Sep Scandinavian Airlines
16 Sep - 22 Sep Scandinavian Airlines
15 Sep - 17 Sep Norwegian
24 Sep - 06 Oct Icelandair direct
24 Sep - 02 Oct Icelandair direct
24 Sep - 05 Oct Ryanair
28 Sep - 01 Oct Scandinavian Airlines direct
24 Sep - 01 Oct Scandinavian Airlines direct
25 Sep - 01 Oct Scandinavian Airlines direct
27 Sep - 01 Oct Scandinavian Airlines direct

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

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