AirHint found the following cheapest return flights from Luxemburg (LUX) to Keflavik (KEF) in January 2026 (see full year).
Return flights
| 12 Jan - 19 Jan | easyJet | ||
| 31 Jan - 06 Feb | KLM | ||
| 26 Jan - 02 Feb | Lufthansa | ||
| 24 Jan - 31 Jan | Luxair | ||
| 16 Jan - 18 Jan | easyJet | ||
| 31 Jan - 07 Feb | KLM |
Also check the deals for one-way flights from Luxemburg to Keflavik in January.
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