Cheapest return flights from Porto to Keflavik in October from $364

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

Return flights

29 Oct - 05 Nov Vueling Airlines
28 Oct - 05 Nov Ryanair
31 Oct - 08 Nov Ryanair
28 Oct - 04 Nov Ryanair
23 Oct - 28 Oct Ryanair
22 Oct - 29 Oct Ryanair
31 Oct - 03 Nov Ryanair
20 Oct - 25 Oct Ryanair
28 Oct - 02 Nov Ryanair
27 Oct - 30 Oct Ryanair
23 Oct - 30 Oct easyJet
26 Oct - 29 Oct Wizz Air
23 Oct - 31 Oct easyJet
26 Oct - 30 Oct Wizz Air
26 Oct - 02 Nov Wizz Air
26 Oct - 31 Oct Wizz Air
24 Oct - 31 Oct TAP

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

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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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