AirHint found the following cheapest return flights from Biarritz-bayonne (BIQ) to Basel (BSL) in September 2025 (see full year).
Return flights
| 06 Sep - 10 Sep | easyJet | direct | |
| 06 Sep - 13 Sep | easyJet | ||
| 06 Sep - 13 Sep | easyJet | direct | |
| 05 Sep - 10 Sep | Ryanair | ||
| 05 Sep - 08 Sep | KLM | ||
| 04 Sep - 10 Sep | easyJet |
Also check the deals for one-way flights from Biarritz-bayonne to Basel in September.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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