Cheapest return flights from Keflavik to Barcelona in August from $259

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

Return flights

20 Aug - 27 Aug easyJet
27 Aug - 02 Sep easyJet
17 Aug - 27 Aug Wizz Air
25 Aug - 31 Aug Eurowings
04 Aug - 31 Aug easyJet
04 Aug - 31 Aug Fly Play direct
14 Aug - 21 Aug Wizz Air Malta
15 Aug - 22 Aug Wizz Air Malta
22 Aug - 29 Aug Finnair
24 Aug - 14 Sep Vueling Airlines direct
08 Aug - 16 Aug Wizz Air Malta
09 Aug - 16 Aug Wizz Air
31 Aug - 14 Sep Vueling Airlines direct

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

Skyscanner

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.

Book a cheap hotel in Barcelona

Cheap car rent in Barcelona

Feel free to contact us with any feedback or request another flight research.