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

Return flights

30 Nov - 05 Dec	easyJet
11 Nov - 26 Nov	easyJet
08 Nov - 23 Nov	easyJet
23 Nov - 26 Nov	easyJet
30 Nov - 07 Dec	Ryanair
05 Nov - 19 Nov	easyJet
06 Nov - 10 Nov	Ryanair
21 Nov - 23 Nov	easyJet
27 Nov - 01 Dec	Ryanair
17 Nov - 21 Nov	Ryanair
29 Nov - 02 Dec	easyJet
29 Nov - 04 Dec	Ryanair
11 Nov - 25 Nov	easyJet
29 Nov - 08 Dec	easyJet
15 Nov - 18 Nov	Lufthansa
06 Nov - 13 Nov	Ryanair
29 Nov - 06 Dec	Ryanair
29 Nov - 01 Dec	easyJet
28 Nov - 01 Dec	easyJet
27 Nov - 19 Dec	Ryanair

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 159€

Return flights