AirHint found the following cheapest one-way flights from Ontario (ONT) to Sao Paulo (GRU) in January 2026 (see full year).
One-Way flights
| 22 Jan | Frontier Airlines | ||
| 13 Jan | Frontier Airlines | ||
| 01 Jan | Volaris | ||
| 03 Jan | Frontier Airlines | ||
| 30 Jan | Volaris | ||
| 04 Jan | Volaris | ||
| 10 Jan | Avianca | ||
| 02 Jan | Volaris | ||
| 06 Jan | LATAM Airlines Group | ||
| 11 Jan | Copa |
Also check the deals for return flights from Ontario to Sao Paulo in January.
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