Cheapest return flights from Keflavik to Barcelona in August from $364

Best time to book flights for Keflavik (KEF) to Barcelona (BCN) flights at AirHint

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

Return flights

15 Aug - 20 Aug Fly Play
24 Aug - 07 Sep Vueling Airlines direct
24 Aug - 14 Sep Vueling Airlines direct
17 Aug - 07 Sep Vueling Airlines direct
15 Aug - 20 Aug Icelandair direct
31 Aug - 07 Sep Vueling Airlines direct
03 Aug - 17 Aug Vueling Airlines direct
10 Aug - 17 Aug Vueling Airlines direct
03 Aug - 24 Aug Vueling Airlines direct
10 Aug - 24 Aug Vueling Airlines direct
03 Aug - 10 Aug Vueling Airlines direct
17 Aug - 24 Aug Vueling Airlines direct

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

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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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