AirHint found the following cheapest return flights from Ontario (ONT) to Bangkok (BKK) in January 2026 (see full year).

Return flights

29 Jan - 05 Feb	Korean Air
30 Jan - 15 Feb	Korean Air
20 Jan - 26 Jan	Korean Air
16 Jan - 26 Jan	STARLUX Airlines
10 Jan - 17 Jan	STARLUX Airlines
07 Jan - 23 Jan	STARLUX Airlines
14 Jan - 23 Jan	STARLUX Airlines
30 Jan - 14 Feb	STARLUX Airlines
11 Jan - 18 Jan	China Airlines
06 Jan - 18 Jan	China Airlines
11 Jan - 25 Jan	China Airlines
15 Jan - 29 Jan	China Airlines
11 Jan - 23 Jan	China Airlines
08 Jan - 05 Feb	China Airlines

Also check the deals for one-way flights from Ontario to Bangkok in January.

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 Ontario to Bangkok in January from $793

Return flights