Cheapest return OPO–KEF flights, October

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

Return flights

14 Oct - 22 Oct Ryanair
09 Oct - 12 Oct Vueling Airlines
14 Oct - 27 Oct easyJet
01 Oct - 11 Oct Ryanair
01 Oct - 12 Oct Ryanair
19 Oct - 23 Oct Transavia France
15 Oct - 27 Oct Ryanair
15 Oct - 31 Oct easyJet
14 Oct - 18 Oct Ryanair
07 Oct - 15 Oct Ryanair
31 Oct - 09 Nov Ryanair
30 Oct - 01 Nov Scandinavian Airlines

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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