Cheapest return flights from San Francisco to Bangkok in December from $722

Best time to book flights for San Francisco (SFO) to Bangkok (BKK) flights at AirHint

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

Return flights

01 Dec - 22 Dec Asiana Airlines
01 Dec - 05 Dec Asiana Airlines
01 Dec - 07 Jan Singapore Airlines
25 Dec - 08 Jan Asiana Airlines
31 Dec - 07 Jan Asiana Airlines
29 Dec - 13 Jan Korean Air
25 Dec - 13 Jan Asiana Airlines
26 Dec - 10 Jan Asiana Airlines
15 Dec - 21 Dec Singapore Airlines
31 Dec - 09 Jan Asiana Airlines
22 Dec - 29 Dec Asiana Airlines
22 Dec - 13 Jan Singapore Airlines
05 Dec - 05 Jan Cathay Pacific
05 Dec - 04 Jan Asiana Airlines
20 Dec - 31 Dec Asiana Airlines

Also check the deals for one-way flights from San Francisco 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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