Cheapest return flights from Porto to Keflavik in September from 254€

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

Return flights

26 Sep - 04 Oct easyJet
07 Sep - 14 Sep Volotea
09 Sep - 14 Sep Ryanair
05 Sep - 13 Sep Ryanair
10 Sep - 17 Sep TAP
03 Sep - 10 Sep easyJet
21 Sep - 28 Sep Ryanair
14 Sep - 19 Sep Ryanair
04 Sep - 11 Sep Lufthansa
23 Sep - 07 Oct Vueling Airlines
23 Sep - 10 Oct Vueling Airlines
19 Sep - 07 Oct Vueling Airlines

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

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