AirHint found the following cheapest return flights from Sofia (SOF) to Singapore (SIN) in May 2026 (see full year).
Return flights
| 07 May - 13 May | Bulgaria Air | ||
| 07 May - 06 Jun | Turkish Airlines | ||
| 23 May - 30 May | Aegean Airlines |
Also check the deals for one-way flights from Sofia to Singapore in May.
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