Cheapest return flights from Porto to Keflavik in October from $253

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

Return flights

05 Oct - 12 Oct Ryanair
12 Oct - 20 Oct Ryanair
13 Oct - 20 Oct Ryanair
14 Oct - 22 Oct Ryanair
01 Oct - 10 Oct Ryanair
08 Oct - 15 Oct Ryanair
02 Oct - 10 Oct Ryanair
14 Oct - 21 Oct Ryanair
15 Oct - 22 Oct Ryanair
18 Oct - 25 Oct KLM
22 Oct - 09 Nov Transavia France
24 Oct - 01 Nov Transavia France
26 Oct - 01 Nov easyJet

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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