AirHint found the following cheapest return flights from Toronto (YTZ) to Bangkok (BKK) in December 2025 (see full year).

Return flights

13 Dec - 28 Dec	Emirates
11 Dec - 23 Dec	SWISS
05 Dec - 30 Dec	SWISS
11 Dec - 04 Jan	SWISS
06 Dec - 23 Dec	SWISS
02 Dec - 09 Dec	SWISS
09 Dec - 23 Dec	SWISS
02 Dec - 16 Dec	SWISS
06 Dec - 30 Dec	SWISS
10 Dec - 30 Dec	SWISS

Also check the deals for one-way flights from Toronto to Bangkok in December.

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 Toronto to Bangkok in December from 2297€

Return flights