Cheapest return flights from Porto to Keflavik in August from $338

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

Return flights

18 Aug - 25 Aug easyJet
23 Aug - 30 Aug TAP
01 Aug - 08 Aug Scandinavian Airlines
27 Aug - 03 Sep transavia
03 Aug - 14 Aug easyJet

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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