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

Return flights

29 Jan - 03 Feb	easyJet
08 Jan - 16 Jan	Wizz Air
08 Jan - 13 Jan	Wizz Air
31 Jan - 03 Feb	easyJet
10 Jan - 16 Jan	Wizz Air
08 Jan - 14 Jan	Wizz Air
12 Jan - 16 Jan	Wizz Air
22 Jan - 27 Jan	easyJet
31 Jan - 05 Feb	easyJet
09 Jan - 11 Jan	Wizz Air
24 Jan - 01 Feb	Wizz Air
19 Jan - 25 Jan	Icelandair
18 Jan - 25 Jan	Wizz Air
13 Jan - 15 Jan	easyJet
29 Jan - 03 Feb	Icelandair	direct
24 Jan - 01 Feb	Icelandair	direct
31 Jan - 03 Feb	Icelandair	direct

Also check the deals for one-way flights from Keflavik to Barcelona 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 Keflavik to Barcelona in January from 168€

Return flights