AirHint found the following cheapest return flights from Ontario (ONT) to Shanghai (PVG) in August 2025 (see full year).

Return flights

03 Aug - 12 Aug	Asiana Airlines
24 Aug - 14 Sep	Finnair
27 Aug - 03 Sep	Finnair
07 Aug - 22 Aug	Finnair
24 Aug - 31 Aug	Finnair
23 Aug - 30 Aug	Finnair
04 Aug - 15 Aug	Finnair
03 Aug - 17 Aug	Finnair
17 Aug - 27 Aug	Qatar Airways
19 Aug - 13 Sep	Qatar Airways
20 Aug - 13 Sep	Qatar Airways
21 Aug - 13 Sep	Qatar Airways
24 Aug - 13 Sep	Qatar Airways
25 Aug - 01 Sep	Qatar Airways
22 Aug - 13 Sep	Qatar Airways
06 Aug - 13 Aug	Qatar Airways
04 Aug - 31 Aug	Qatar Airways
02 Aug - 22 Aug	Qatar Airways

Also check the deals for one-way flights from Ontario to Shanghai in August.

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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Cheapest return flights from Ontario to Shanghai in August from $1186

Return flights