AirHint found the following cheapest one-way flights from Montreal (YUL) to Bangkok (BKK) in October 2025 (see full year).

One-Way flights

18 Oct	Porter Airlines (Canada) Ltd
19 Oct	Porter Airlines (Canada) Ltd
21 Oct	ANA
25 Oct	United
15 Oct	ANA
05 Oct	Porter Airlines (Canada) Ltd
30 Oct	Porter Airlines (Canada) Ltd
17 Oct	Porter Airlines (Canada) Ltd
08 Oct	Porter Airlines (Canada) Ltd
26 Oct	United

Also check the deals for return flights from Montreal to Bangkok 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 one-way flights from Montreal to Bangkok in October from 375€

One-Way flights