Cheapest return flights from Ontario to Bangkok in December from $859

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

Return flights

29 Dec - 21 Jan Korean Air
29 Dec - 23 Jan Korean Air
08 Dec - 13 Dec China Airlines
03 Dec - 16 Dec China Airlines
02 Dec - 23 Dec China Airlines
05 Dec - 20 Dec China Airlines
04 Dec - 11 Dec China Airlines
01 Dec - 08 Dec China Airlines
04 Dec - 22 Dec China Airlines
01 Dec - 11 Dec China Airlines
01 Dec - 10 Dec China Airlines
03 Dec - 10 Dec China Airlines
05 Dec - 12 Jan Korean Air
04 Dec - 14 Jan China Airlines
07 Dec - 28 Jan China Airlines
05 Dec - 14 Jan China Airlines
04 Dec - 15 Jan China Airlines
06 Dec - 15 Jan China Airlines
06 Dec - 14 Jan China Airlines
01 Dec - 15 Jan China Airlines

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.