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

Return flights

05 Dec - 14 Dec	Korean Air
03 Dec - 17 Dec	Korean Air
03 Dec - 16 Dec	Korean Air
03 Dec - 22 Jan	Korean Air
03 Dec - 26 Jan	Korean Air
02 Dec - 07 Dec	Korean Air
08 Dec - 15 Dec	Korean Air
08 Dec - 20 Jan	Korean Air
03 Dec - 24 Dec	Korean Air
02 Dec - 23 Dec	China Airlines
04 Dec - 15 Dec	Korean Air
07 Dec - 14 Dec	China Airlines
01 Dec - 11 Dec	China Airlines
29 Dec - 22 Jan	China Airlines
01 Dec - 19 Jan	China Airlines
01 Dec - 12 Jan	China Airlines
31 Dec - 12 Jan	Korean Air
31 Dec - 08 Jan	Korean Air
29 Dec - 17 Jan	China Airlines
31 Dec - 11 Jan	Korean Air

Also check the deals for one-way flights from Oakland 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 Oakland to Bangkok in December from $893

Return flights