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

Return flights

28 Aug - 07 Sep	Wizz Air Malta
27 Aug - 07 Sep	Wizz Air Malta
30 Aug - 07 Sep	Vueling Airlines
25 Aug - 07 Sep	Wizz Air Malta
28 Aug - 06 Sep	Wizz Air Malta
29 Aug - 07 Sep	easyJet
25 Aug - 28 Aug	Wizz Air Malta
21 Aug - 28 Aug	Wizz Air Malta
27 Aug - 06 Sep	Wizz Air Malta
07 Aug - 28 Aug	Wizz Air
27 Aug - 03 Sep	Wizz Air Malta
27 Aug - 05 Sep	Wizz Air Malta
31 Aug - 14 Sep	Vueling Airlines
06 Aug - 13 Aug	Wizz Air Malta
21 Aug - 27 Aug	Vueling Airlines
24 Aug - 28 Aug	Wizz Air
25 Aug - 30 Aug	Wizz Air Malta
15 Aug - 28 Aug	Wizz Air Malta
07 Aug - 19 Aug	Wizz Air
07 Aug - 12 Aug	Wizz Air

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

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 August from 185€

Return flights