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

Return flights

16 Oct - 06 Nov	Korean Air
15 Oct - 05 Nov	Korean Air
20 Oct - 04 Nov	Korean Air
06 Oct - 27 Oct	Korean Air
20 Oct - 21 Nov	Korean Air
29 Oct - 09 Nov	Korean Air
02 Oct - 19 Oct	China Airlines
01 Oct - 19 Oct	China Airlines
07 Oct - 26 Nov	China Airlines
07 Oct - 23 Oct	China Airlines
01 Oct - 22 Oct	China Airlines
09 Oct - 06 Nov	China Airlines
11 Oct - 26 Oct	STARLUX Airlines
04 Oct - 09 Nov	STARLUX Airlines
03 Oct - 22 Oct	STARLUX Airlines
17 Oct - 24 Oct	STARLUX Airlines
10 Oct - 26 Oct	STARLUX Airlines
24 Oct - 08 Nov	STARLUX Airlines
05 Oct - 17 Nov	China Airlines
03 Oct - 11 Oct	STARLUX Airlines

Also check the deals for one-way flights from Ontario to Ho Chi Minh City in October.

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 October from $716

Return flights