AirHint found the following cheapest one-way flights from Ontario (ONT) to Sao Paulo (GRU) in May 2026 (see full year).
One-Way flights
| 30 May | Avianca | ||
| 15 May | Volaris | ||
| 13 May | LATAM Airlines Group | ||
| 03 May | LATAM Airlines Group | ||
| 02 May | Copa | ||
| 04 May | Copa | ||
| 08 May | Copa | ||
| 14 May | Copa | ||
| 19 May | Copa | ||
| 26 May | Copa |
Also check the deals for return flights from Ontario to Sao Paulo in May.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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