AirHint found the following cheapest return flights from Sofia (SOF) to Singapore (SIN) in January 2026 (see full year).
Return flights
| 25 Jan - 02 Feb | IndiGo | ||
| 19 Jan - 03 Feb | IndiGo | ||
| 22 Jan - 04 Feb | KLM | ||
| 21 Jan - 28 Jan | Air France | ||
| 25 Jan - 31 Jan | Pegasus Airlines | ||
| 18 Jan - 03 Feb | IndiGo |
Also check the deals for one-way flights from Sofia to Singapore in January.
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