Cheapest return OPO–KEF flights, August

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

Return flights

26 Aug - 01 Sep easyJet
26 Aug - 06 Sep easyJet
26 Aug - 09 Sep easyJet
26 Aug - 31 Aug easyJet
30 Aug - 13 Sep Ryanair
25 Aug - 30 Aug Ryanair
24 Aug - 30 Aug Ryanair
31 Aug - 05 Sep SWISS
30 Aug - 04 Sep Ryanair
30 Aug - 02 Sep Ryanair
12 Aug - 19 Aug easyJet
30 Aug - 31 Aug Ryanair
31 Aug - 04 Sep Ryanair
04 Aug - 14 Aug Ryanair
22 Aug - 29 Aug SWISS
11 Aug - 16 Aug Ryanair
01 Aug - 13 Aug Ryanair
07 Aug - 16 Aug Ryanair
26 Aug - 12 Sep Vueling Airlines
26 Aug - 05 Sep Vueling Airlines

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

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