AirHint found the following cheapest return flights from Bydgoszcz (BZG) to Frankfurt (FRA) in December 2025 (see full year).
Return flights
| 01 Dec - 13 Dec | Ryanair | ||
| 07 Dec - 14 Dec | Lufthansa | direct | |
| 08 Dec - 11 Dec | Lufthansa | direct | |
| 02 Dec - 14 Dec | Lufthansa | direct | |
| 19 Dec - 22 Dec | Lufthansa | direct |
Also check the deals for one-way flights from Bydgoszcz to Frankfurt in December.
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