Cheapest return flights from Porto to Keflavik in December from $217

AirHint found the following cheapest return flights from Porto (OPO) to Keflavik (KEF) in December 2025 (see full year).

Return flights

06 Dec - 11 Dec easyJet
06 Dec - 09 Dec easyJet
05 Dec - 09 Dec easyJet
05 Dec - 12 Dec easyJet
22 Dec - 29 Dec easyJet
26 Dec - 31 Dec easyJet
18 Dec - 25 Dec Ryanair
26 Dec - 30 Dec easyJet
31 Dec - 04 Jan Ryanair
18 Dec - 23 Dec Ryanair
19 Dec - 24 Dec Ryanair
30 Dec - 02 Jan Vueling Airlines

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

Skyscanner

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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