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

Return flights

20 Nov - 23 Nov	easyJet
30 Nov - 02 Dec	easyJet
29 Nov - 06 Dec	easyJet
26 Nov - 29 Nov	Vueling Airlines
24 Nov - 27 Nov	Ryanair
23 Nov - 27 Nov	Ryanair
17 Nov - 20 Nov	Ryanair
27 Nov - 04 Dec	Ryanair
17 Nov - 22 Nov	Ryanair
28 Nov - 02 Dec	easyJet
18 Nov - 21 Nov	Ryanair
13 Nov - 16 Nov	Ryanair
17 Nov - 23 Nov	Ryanair
12 Nov - 19 Nov	Vueling Airlines
29 Nov - 01 Dec	easyJet
28 Nov - 01 Dec	easyJet

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

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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Cheapest return flights from Porto to Keflavik in November from 184€

Return flights