AirHint found the following cheapest return flights from Biarritz-bayonne (BIQ) to Basel (BSL) in October 2025 (see full year).
Return flights
| 25 Oct - 29 Oct | easyJet | direct | |
| 28 Oct - 04 Nov | KLM | ||
| 31 Oct - 02 Nov | Ryanair | ||
| 24 Oct - 27 Oct | Air France |
Also check the deals for one-way flights from Biarritz-bayonne to Basel in October.
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