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

Return flights

12 Jan - 22 Jan	Vueling Airlines
12 Jan - 14 Jan	Vueling Airlines
10 Jan - 15 Jan	Vueling Airlines
23 Jan - 28 Jan	Vueling Airlines
23 Jan - 29 Jan	Vueling Airlines
19 Jan - 22 Jan	Vueling Airlines
12 Jan - 19 Jan	Vueling Airlines
31 Jan - 04 Feb	easyJet
28 Jan - 02 Feb	Vueling Airlines
13 Jan - 20 Jan	Vueling Airlines
31 Jan - 09 Feb	Vueling Airlines
14 Jan - 19 Jan	Vueling Airlines
09 Jan - 15 Jan	Vueling Airlines
30 Jan - 05 Feb	Vueling Airlines

Also check the deals for one-way flights from Bilbao 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 Bilbao to Keflavik in January from 143€

Return flights