Cheapest return flights from Ontario to Sao Paulo in October from $979

AirHint found the following cheapest return flights from Ontario (ONT) to Sao Paulo (GRU) in October 2025 (see full year).

Return flights

25 Oct - 28 Oct Avianca
16 Oct - 23 Oct Avianca
30 Oct - 06 Nov Avianca
04 Oct - 14 Oct Avianca
13 Oct - 27 Oct United
14 Oct - 28 Oct United
15 Oct - 29 Oct United
16 Oct - 30 Oct United
08 Oct - 22 Oct United
02 Oct - 16 Oct United
07 Oct - 21 Oct United
23 Oct - 06 Nov United
27 Oct - 10 Nov United
30 Oct - 13 Nov United
21 Oct - 04 Nov United
22 Oct - 05 Nov United
29 Oct - 12 Nov United
31 Oct - 14 Nov United
26 Oct - 09 Nov United
18 Oct - 01 Nov United

Also check the deals for one-way flights from Ontario to Sao Paulo in October.

Skyscanner

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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