AirHint found the following cheapest one-way flights from Ontario (ONT) to Sao Paulo (GRU) in September 2026 (see full year).
One-Way flights
| 23 Sep | Copa | ||
| 24 Sep | Copa | ||
| 14 Sep | Copa | ||
| 16 Sep | Copa | ||
| 17 Sep | Copa | ||
| 18 Sep | Copa |
Also check the deals for return flights from Ontario to Sao Paulo in September.
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