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

Return flights

30 Oct - 10 Nov	Wizz Air Malta
31 Oct - 10 Nov	Wizz Air
30 Oct - 11 Nov	Wizz Air Malta
21 Oct - 28 Nov	Wizz Air Malta
30 Oct - 12 Nov	Wizz Air Malta
30 Oct - 09 Nov	Wizz Air Malta
31 Oct - 06 Nov	Wizz Air Malta
30 Oct - 07 Nov	Wizz Air Malta
31 Oct - 13 Nov	Wizz Air Malta
30 Oct - 06 Nov	Wizz Air Malta
21 Oct - 26 Oct	Wizz Air Malta
20 Oct - 26 Oct	Vueling Airlines
21 Oct - 28 Oct	Wizz Air Malta
19 Oct - 26 Oct	Vueling Airlines
21 Oct - 27 Oct	Wizz Air Malta
21 Oct - 22 Oct	Vueling Airlines
16 Oct - 21 Oct	Jet2
15 Oct - 26 Oct	Ryanair
22 Oct - 25 Oct	Wizz Air Malta
20 Oct - 27 Oct	Ryanair

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 248€

Return flights