AirHint found the following cheapest return flights from Ontario (ONT) to Sao Paulo (GRU) in April 2026 (see full year).
Return flights
| 18 Apr - 25 Apr | Volaris | ||
| 16 Apr - 05 May | LATAM Airlines Group | ||
| 02 Apr - 14 Apr | Avianca | ||
| 14 Apr - 05 May | LATAM Airlines Group | ||
| 20 Apr - 27 Apr | LATAM Airlines Group |
Also check the deals for one-way flights from Ontario to Sao Paulo in April.
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