AirHint found the following cheapest return flights from Ontario (ONT) to Ho Chi Minh City (SGN) in August 2025 (see full year).

Return flights

30 Aug - 06 Sep	China Airlines
19 Aug - 18 Sep	China Airlines
26 Aug - 21 Sep	China Airlines
24 Aug - 22 Sep	China Airlines
24 Aug - 21 Sep	China Airlines
31 Aug - 04 Sep	China Airlines
21 Aug - 21 Sep	China Airlines
22 Aug - 21 Sep	China Airlines
23 Aug - 21 Sep	China Airlines
26 Aug - 09 Sep	China Airlines
18 Aug - 25 Aug	China Airlines
21 Aug - 25 Aug	China Airlines
29 Aug - 31 Aug	China Airlines
20 Aug - 27 Aug	China Airlines
27 Aug - 30 Aug	China Airlines
28 Aug - 31 Aug	China Airlines
19 Aug - 21 Aug	China Airlines
17 Aug - 21 Aug	China Airlines
20 Aug - 23 Aug	Qatar Airways

Also check the deals for one-way flights from Ontario to Ho Chi Minh City 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 Ho Chi Minh City in August from 686€

Return flights