AirHint found the following cheapest return flights from Barcelona (BCN) to Keflavik (KEF) in December 2026 (see full year).

Return flights

13 Dec - 01 Jan	Wizz Air Malta
06 Dec - 10 Dec	Wizz Air Malta
07 Dec - 14 Dec	Wizz Air Malta
14 Dec - 18 Dec	Wizz Air Malta
15 Dec - 19 Dec	easyJet
05 Dec - 08 Dec	easyJet
18 Dec - 21 Dec	easyJet
04 Dec - 07 Dec	Wizz Air
19 Dec - 22 Dec	Wizz Air
29 Dec - 01 Jan	Wizz Air
19 Dec - 07 Jan	easyJet
29 Dec - 07 Jan	easyJet
31 Dec - 03 Jan	Lufthansa
15 Dec - 19 Dec	Icelandair	direct
18 Dec - 21 Dec	Icelandair	direct
29 Dec - 04 Jan	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 163€

Return flights