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
03 Dec - 17 Dec Asiana Airlines
31 Dec - 15 Jan Asiana Airlines
30 Dec - 26 Jan Singapore Airlines
08 Dec - 18 Dec Air Canada
04 Dec - 10 Dec Asiana Airlines
03 Dec - 18 Dec Asiana Airlines
01 Dec - 08 Dec Asiana Airlines
01 Dec - 15 Dec Asiana Airlines
02 Dec - 19 Jan Korean Air
01 Dec - 20 Jan Korean Air
02 Dec - 14 Dec Korean Air
04 Dec - 15 Dec Korean Air
02 Dec - 18 Dec Korean Air
02 Dec - 17 Dec Korean Air
30 Dec - 23 Jan Korean Air
31 Dec - 12 Jan Asiana Airlines
29 Dec - 20 Jan Korean Air
29 Dec - 22 Jan Korean Air
08 Dec - 20 Jan Korean Air

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

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