AirHint found the following cheapest return flights from Sao Paulo (GRU) to Singapore (SIN) in December 2025 (see full year).
Return flights
| 23 Dec - 30 Dec | KLM | ||
| 24 Dec - 31 Dec | Air France | ||
| 28 Dec - 24 Jan | Copa | ||
| 27 Dec - 14 Jan | Ethiopian Airlines | ||
| 21 Dec - 06 Jan | Air France | ||
| 22 Dec - 02 Jan | KLM |
Also check the deals for one-way flights from Sao Paulo to Singapore in December.
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