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

Return flights

30 Dec - 07 Jan	Ryanair
30 Dec - 06 Jan	Ryanair
26 Dec - 31 Dec	Wizz Air
30 Dec - 04 Jan	Ryanair
31 Dec - 07 Jan	Wizz Air
22 Dec - 31 Dec	Scandinavian Airlines
29 Dec - 06 Jan	Ryanair
28 Dec - 08 Jan	Wizz Air
30 Dec - 01 Jan	Wizz Air
29 Dec - 31 Dec	Wizz Air
28 Dec - 31 Dec	Ryanair
25 Dec - 31 Dec	Wizz Air
26 Dec - 06 Jan	Wizz Air
26 Dec - 28 Dec	Wizz Air
22 Dec - 28 Dec	Scandinavian Airlines
31 Dec - 05 Jan	Wizz Air
31 Dec - 02 Jan	Wizz Air
22 Dec - 25 Dec	Scandinavian Airlines
22 Dec - 27 Dec	Scandinavian Airlines
27 Dec - 31 Dec	Wizz Air

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

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 December from 244€

Return flights