Cheapest return flights from Ljubljana to Keflavik in December from $361

AirHint found the following cheapest return flights from Ljubljana (LJU) to Keflavik (KEF) in December 2025 (see full year).

Return flights

31 Dec - 06 Jan easyJet
12 Dec - 15 Dec easyJet
23 Dec - 27 Dec SWISS
30 Dec - 06 Jan Air Serbia
19 Dec - 27 Dec LOT
20 Dec - 23 Dec LOT
18 Dec - 22 Dec easyJet
31 Dec - 03 Jan easyJet
26 Dec - 30 Dec LOT

Also check the deals for one-way flights from Ljubljana to Keflavik in December.

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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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