AirHint found the following cheapest return flights from Lille (LIL) to Athens (ATH) in December 2025 (see full year).
Return flights
| 07 Dec - 10 Dec | Volotea | ||
| 16 Dec - 23 Dec | easyJet | ||
| 28 Dec - 11 Jan | ASL Airlines France | ||
| 22 Dec - 28 Dec | Ryanair | ||
| 26 Dec - 02 Jan | Ryanair |
Also check the deals for one-way flights from Lille to Athens in December.
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