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

Return flights

20 Oct - 27 Oct	ANA
21 Oct - 11 Nov	United
01 Oct - 21 Oct	Porter Airlines (Canada) Ltd
21 Oct - 28 Oct	Air Canada
21 Oct - 25 Nov	Air Canada
23 Oct - 24 Nov	Air Canada
01 Oct - 22 Oct	Japan Airlines
14 Oct - 21 Oct	Air Canada
03 Oct - 12 Oct	United
03 Oct - 11 Oct	United
07 Oct - 25 Nov	Air Canada
06 Oct - 21 Oct	Turkish Airlines
07 Oct - 06 Nov	Turkish Airlines
13 Oct - 20 Oct	Air Canada
15 Oct - 12 Nov	Air Canada
15 Oct - 18 Nov	Air Canada
02 Oct - 09 Nov	Air Canada
13 Oct - 14 Nov	Air Canada
13 Oct - 02 Nov	Air Canada
08 Oct - 15 Oct	Etihad Airways

Also check the deals for one-way 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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Montreal to Bangkok in October from $816

Return flights