AirHint found the following cheapest return flights from Barcelona (BCN) to Keflavik (KEF) in October 2025 (see full year).

Return flights

24 Oct - 06 Nov	Fly Play	direct
21 Oct - 28 Oct	easyJet
29 Oct - 05 Nov	Ryanair
23 Oct - 28 Oct	Ryanair
30 Oct - 06 Nov	Vueling Airlines
30 Oct - 05 Nov	Vueling Airlines
21 Oct - 27 Oct	easyJet
16 Oct - 26 Oct	Wizz Air
22 Oct - 27 Oct	Wizz Air Malta
31 Oct - 06 Nov	Vueling Airlines
31 Oct - 05 Nov	Vueling Airlines
22 Oct - 01 Nov	Wizz Air Malta
21 Oct - 29 Oct	easyJet
23 Oct - 26 Oct	Vueling Airlines
22 Oct - 28 Oct	Wizz Air Malta
15 Oct - 22 Oct	Wizz Air Malta
23 Oct - 02 Nov	Vueling Airlines
22 Oct - 24 Oct	Fly Play	direct
24 Oct - 02 Nov	Fly Play	direct
31 Oct - 07 Nov	Vueling Airlines

Also check the deals for one-way flights from Barcelona to Keflavik in October.

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 Barcelona to Keflavik in October from 148€

Return flights