Cheapest return flights from Lisbon to Keflavik in August from 292€

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

Return flights

01 Aug - 05 Aug Vueling Airlines
02 Aug - 06 Aug Vueling Airlines
18 Aug - 29 Aug TAP
24 Aug - 01 Sep easyJet
20 Aug - 30 Aug Ryanair
23 Aug - 30 Aug KLM
16 Aug - 23 Aug KLM
23 Aug - 30 Aug Icelandair direct
02 Aug - 06 Aug Icelandair direct
02 Aug - 16 Aug KLM
11 Aug - 17 Aug Scandinavian Airlines

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

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