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

Return flights

03 Dec - 10 Dec	WestJet
08 Dec - 14 Dec	Flair Airlines
01 Dec - 10 Dec	WestJet
01 Dec - 14 Dec	Flair Airlines
02 Dec - 08 Dec	WestJet
03 Dec - 09 Dec	WestJet
04 Dec - 09 Dec	WestJet
06 Dec - 14 Dec	Flair Airlines
03 Dec - 08 Dec	WestJet
02 Dec - 06 Dec	WestJet
02 Dec - 28 Jan	WestJet
01 Dec - 15 Jan	Flair Airlines
01 Dec - 29 Jan	Porter Airlines (Canada) Ltd
31 Dec - 30 Jan	WestJet
25 Dec - 25 Jan	Flair Airlines
03 Dec - 17 Jan	WestJet
30 Dec - 31 Jan	WestJet
08 Dec - 12 Jan	Porter Airlines (Canada) Ltd
31 Dec - 12 Jan	WestJet
08 Dec - 08 Jan	Flair Airlines

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.

Book a cheap hotel in Bangkok

Cheap car rent in Bangkok

Cheapest return flights from Toronto to Bangkok in December from 640€

Return flights