AirHint found the following cheapest return flights from Bilbao (BIO) to Tbilisi (TBS) in December 2025 (see full year).
Return flights
| 04 Dec - 14 Dec | Lufthansa | ||
| 24 Dec - 04 Jan | Wizz Air Malta | ||
| 19 Dec - 02 Jan | Vueling Airlines |
Also check the deals for one-way flights from Bilbao to Tbilisi in December.
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