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

Return flights

30 Nov - 04 Dec	easyJet
23 Nov - 29 Nov	easyJet
10 Nov - 20 Nov	easyJet
25 Nov - 29 Nov	easyJet
27 Nov - 02 Dec	Ryanair
29 Nov - 03 Dec	Vueling Airlines
27 Nov - 04 Dec	Ryanair
06 Nov - 10 Nov	Ryanair
15 Nov - 29 Nov	easyJet
06 Nov - 11 Nov	Ryanair
28 Nov - 05 Dec	easyJet
22 Nov - 30 Nov	TAP
30 Nov - 07 Dec	easyJet
14 Nov - 17 Nov	Transavia France
09 Nov - 14 Nov	Ryanair
13 Nov - 16 Nov	Ryanair
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 163€

Return flights