AirHint found the following cheapest one-way flights from Basel (BSL) to Singapore (SIN) in December 2025 (see full year).
One-Way flights
| 05 Dec | SunExpress | ||
| 04 Dec | AJet | ||
| 26 Dec | AJet | ||
| 16 Dec | IndiGo | ||
| 19 Dec | Turkish Airlines |
Also check the deals for return flights from Basel to Singapore in December.
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