AirHint found the following cheapest return flights from Montreal (YUL) to Bangkok (BKK) in August 2026 (see full year).

Return flights

20 Aug - 08 Sep	United
20 Aug - 07 Sep	United
20 Aug - 03 Sep	United
25 Aug - 01 Sep	United
26 Aug - 02 Sep	United
20 Aug - 15 Sep	United
20 Aug - 30 Sep	United
20 Aug - 09 Sep	United
20 Aug - 02 Sep	United
30 Aug - 22 Sep	United
20 Aug - 27 Aug	United
03 Aug - 10 Aug	Air Canada
19 Aug - 26 Aug	United
24 Aug - 31 Aug	United
21 Aug - 28 Aug	United
04 Aug - 24 Aug	Air Canada
05 Aug - 12 Aug	Air Canada
10 Aug - 17 Aug	Air Canada
12 Aug - 19 Aug	Air Canada
23 Aug - 30 Aug	United

Also check the deals for one-way flights from Montreal to Bangkok 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 Montreal to Bangkok in August from $837

Return flights