AirHint found the following cheapest return flights from Lille (LIL) to Dublin (DUB) in December 2025 (see full year).
Return flights
| 04 Dec - 07 Dec | Volotea | ||
| 03 Dec - 08 Dec | easyJet | ||
| 06 Dec - 13 Dec | Volotea | ||
| 26 Dec - 29 Dec | Ryanair | ||
| 27 Dec - 29 Dec | ASL Airlines France |
Also check the deals for one-way flights from Lille to Dublin in December.
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