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

Return flights

31 Jan - 07 Feb	easyJet
16 Jan - 22 Jan	easyJet
17 Jan - 22 Jan	easyJet
20 Jan - 22 Jan	easyJet
20 Jan - 23 Jan	easyJet
17 Jan - 25 Jan	easyJet
17 Jan - 31 Jan	easyJet
17 Jan - 21 Jan	easyJet
24 Jan - 01 Feb	easyJet
14 Jan - 21 Jan	easyJet
18 Jan - 22 Jan	Air Serbia
19 Jan - 26 Jan	Air Serbia

Also check the deals for one-way flights from Ljubljana 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 Ljubljana to Keflavik in January from 182€

Return flights