AirHint found the following cheapest one-way flights from San Jose (SJC) to Basel (BSL) in December 2025 (see full year).
One-Way flights
| 10 Dec | Lufthansa | ||
| 11 Dec | Lufthansa | ||
| 16 Dec | Lufthansa | ||
| 12 Dec | Alaska Airlines |
Also check the deals for return flights from San Jose to Basel in December.
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