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

Return flights

28 Jan - 04 Feb	easyJet
23 Jan - 28 Jan	Wizz Air Malta
23 Jan - 26 Jan	Wizz Air Malta
13 Jan - 17 Jan	Lufthansa
29 Jan - 08 Feb	Wizz Air
22 Jan - 26 Jan	easyJet
09 Jan - 16 Jan	Wizz Air
29 Jan - 01 Feb	easyJet
19 Jan - 23 Jan	Wizz Air
26 Jan - 03 Feb	Wizz Air Malta
22 Jan - 27 Jan	easyJet
24 Jan - 27 Jan	Wizz Air
22 Jan - 23 Jan	easyJet
27 Jan - 03 Feb	easyJet
06 Jan - 13 Jan	Wizz Air
26 Jan - 03 Feb	Icelandair	direct
29 Jan - 01 Feb	Icelandair	direct
29 Jan - 08 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 181€

Return flights