Cheapest return flights from Ontario to Bangkok in December from $822

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

Return flights

01 Dec - 22 Dec Korean Air
02 Dec - 13 Dec Korean Air
01 Dec - 31 Jan Korean Air
08 Dec - 21 Dec STARLUX Airlines
01 Dec - 14 Dec STARLUX Airlines
01 Dec - 09 Dec STARLUX Airlines
29 Dec - 09 Jan STARLUX Airlines
01 Dec - 17 Dec STARLUX Airlines
01 Dec - 15 Dec STARLUX Airlines
01 Dec - 10 Dec STARLUX Airlines
05 Dec - 09 Dec STARLUX Airlines
02 Dec - 16 Dec China Airlines
29 Dec - 12 Jan STARLUX Airlines
27 Dec - 12 Jan STARLUX Airlines
27 Dec - 14 Jan STARLUX Airlines
30 Dec - 16 Jan Korean Air
11 Dec - 17 Jan Korean Air
25 Dec - 13 Jan Korean Air
28 Dec - 11 Jan China Airlines
29 Dec - 05 Jan STARLUX Airlines

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

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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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