Cheapest return DUB–KEF flights, September

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

Return flights

12 Sep - 20 Sep Ryanair
05 Sep - 09 Sep Ryanair
04 Sep - 09 Sep Ryanair
22 Sep - 30 Sep Ryanair
26 Sep - 30 Sep Ryanair
18 Sep - 20 Sep Ryanair
22 Sep - 04 Oct Ryanair
22 Sep - 03 Oct Icelandair direct
22 Sep - 04 Oct Icelandair direct
30 Sep - 04 Oct Icelandair direct
18 Sep - 23 Sep Ryanair
18 Sep - 20 Sep Icelandair direct
25 Sep - 03 Oct Icelandair direct
04 Sep - 06 Sep Ryanair
12 Sep - 18 Sep Scandinavian Airlines
28 Sep - 02 Oct Lufthansa
28 Sep - 02 Oct Icelandair direct
23 Sep - 10 Oct Vueling Airlines
26 Sep - 10 Oct Vueling Airlines
16 Sep - 03 Oct Vueling Airlines

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

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