AirHint found the following cheapest return flights from San Francisco (SFO) to Bangkok (BKK) in January 2026 (see full year).

Return flights

31 Jan - 16 Feb	China Southern
13 Jan - 21 Jan	China Southern
13 Jan - 15 Feb	Air India
17 Jan - 03 Feb	China Southern
22 Jan - 03 Feb	China Southern
26 Jan - 09 Feb	China Eastern
21 Jan - 28 Jan	Air India
19 Jan - 29 Jan	Air India
08 Jan - 29 Jan	Air India
15 Jan - 29 Jan	Air India
15 Jan - 27 Jan	Air India
14 Jan - 11 Feb	Air India
24 Jan - 13 Feb	Air India
22 Jan - 05 Feb	Air India
29 Jan - 12 Feb	Air India
19 Jan - 01 Feb	Air India
12 Jan - 28 Jan	Air India
08 Jan - 19 Jan	China Southern
12 Jan - 25 Jan	China Southern
26 Jan - 30 Jan	Air India

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

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 San Francisco to Bangkok in January from $488

Return flights