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

Return flights

12 Jan - 16 Jan	easyJet
17 Jan - 23 Jan	easyJet
26 Jan - 01 Feb	easyJet
18 Jan - 24 Jan	Vueling Airlines
12 Jan - 14 Jan	easyJet
12 Jan - 17 Jan	Vueling Airlines
26 Jan - 31 Jan	Vueling Airlines
12 Jan - 26 Jan	Vueling Airlines
28 Jan - 04 Feb	easyJet
17 Jan - 19 Jan	Vueling Airlines
11 Jan - 17 Jan	Vueling Airlines
22 Jan - 24 Jan	Vueling Airlines
11 Jan - 09 Feb	Vueling Airlines
29 Jan - 05 Feb	easyJet
30 Jan - 01 Feb	easyJet
29 Jan - 05 Feb	Fly Play	direct
11 Jan - 09 Feb	Icelandair	direct

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

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 January from 137€

Return flights