Cheapest return flights from San Francisco to Bangkok in December from $541

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

Return flights

08 Dec - 29 Jan China Southern
08 Dec - 28 Jan China Southern
03 Dec - 17 Dec Asiana Airlines
04 Dec - 14 Dec Asiana Airlines
31 Dec - 15 Jan Asiana Airlines
29 Dec - 29 Jan Singapore Airlines
30 Dec - 26 Jan Singapore Airlines
04 Dec - 10 Dec Asiana Airlines
03 Dec - 18 Dec Asiana Airlines
08 Dec - 14 Dec China Southern
08 Dec - 24 Dec China Southern
01 Dec - 18 Dec Asiana Airlines
01 Dec - 17 Dec Asiana Airlines
01 Dec - 19 Jan Asiana Airlines
01 Dec - 08 Dec Asiana Airlines
01 Dec - 22 Dec Asiana Airlines
01 Dec - 20 Jan Korean Air
08 Dec - 19 Jan Air Canada
30 Dec - 23 Jan Korean Air
27 Dec - 29 Jan Singapore Airlines

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

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