AirHint found the following cheapest return flights from Biarritz-bayonne (BIQ) to Lisbon (LIS) in December 2025 (see full year).
Return flights
| 10 Dec - 17 Dec | Air France | ||
| 06 Dec - 07 Dec | Air France | ||
| 15 Dec - 16 Dec | Air France | ||
| 30 Dec - 01 Jan | Ryanair | ||
| 23 Dec - 27 Dec | Ryanair |
Also check the deals for one-way flights from Biarritz-bayonne to Lisbon in December.
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