AirHint found the following cheapest return flights from Keflavik (KEF) to Ljubljana (LJU) in January 2026 (see full year).
Return flights
| 22 Jan - 28 Jan | easyJet | ||
| 28 Jan - 30 Jan | easyJet | ||
| 26 Jan - 31 Jan | Icelandair | ||
| 27 Jan - 30 Jan | Wizz Air | ||
| 30 Jan - 02 Feb | easyJet |
Also check the deals for one-way flights from Keflavik to Ljubljana in January.
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