AirHint found the following cheapest return flights from Montreal (YUL) to Hanoi (HAN) in October 2025 (see full year).

Return flights

28 Oct - 04 Nov	ANA
24 Oct - 31 Oct	ANA
07 Oct - 14 Oct	ANA
12 Oct - 19 Oct	ANA
01 Oct - 08 Oct	Air Canada
13 Oct - 20 Oct	Air Canada
14 Oct - 21 Oct	Air Canada
20 Oct - 27 Oct	Air Canada
08 Oct - 15 Oct	Air Canada
16 Oct - 23 Oct	Air Canada
21 Oct - 28 Oct	Air Canada
26 Oct - 02 Nov	Japan Airlines
27 Oct - 03 Nov	Japan Airlines
29 Oct - 05 Nov	Japan Airlines
31 Oct - 07 Nov	Japan Airlines
25 Oct - 01 Nov	Japan Airlines
30 Oct - 06 Nov	Japan Airlines

Also check the deals for one-way flights from Montreal to Hanoi 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 Montreal to Hanoi in October from $926

Return flights