AirHint found the following cheapest return flights from Biarritz-bayonne (BIQ) to Basel (BSL) in September 2025 (see full year).
Return flights
| 27 Sep - 01 Oct | Ryanair | ||
| 10 Sep - 17 Sep | easyJet | direct | |
| 17 Sep - 20 Sep | easyJet | direct | |
| 27 Sep - 01 Oct | easyJet | direct | |
| 19 Sep - 22 Sep | Ryanair | ||
| 14 Sep - 18 Sep | Ryanair | ||
| 11 Sep - 18 Sep | Ryanair |
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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