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

Return flights

07 Oct - 15 Oct	easyJet
21 Oct - 27 Oct	easyJet
21 Oct - 03 Nov	easyJet
14 Oct - 23 Oct	easyJet
14 Oct - 19 Oct	easyJet
18 Oct - 27 Oct	easyJet
22 Oct - 26 Oct	Vueling Airlines
22 Oct - 29 Oct	Vueling Airlines
07 Oct - 10 Oct	easyJet
22 Oct - 03 Nov	Wizz Air Malta
21 Oct - 26 Oct	easyJet
07 Oct - 12 Oct	easyJet
23 Oct - 01 Nov	Wizz Air Malta
27 Oct - 03 Nov	Vueling Airlines
30 Oct - 06 Nov	easyJet
31 Oct - 08 Nov	Wizz Air
26 Oct - 01 Nov	easyJet
22 Oct - 02 Nov	Vueling Airlines
21 Oct - 02 Nov	easyJet
27 Oct - 02 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 130€

Return flights