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

Return flights

07 Jan - 21 Jan	Korean Air
19 Jan - 09 Feb	Korean Air
27 Jan - 03 Feb	Korean Air
18 Jan - 26 Jan	Korean Air
18 Jan - 31 Jan	Korean Air
19 Jan - 19 Feb	Korean Air
12 Jan - 28 Feb	Korean Air
30 Jan - 16 Feb	Korean Air
14 Jan - 30 Jan	Korean Air
01 Jan - 01 Feb	Korean Air
30 Jan - 15 Feb	Korean Air
15 Jan - 22 Jan	EVA Air
14 Jan - 24 Jan	Hawaiian Airlines
15 Jan - 05 Feb	EVA Air
26 Jan - 11 Feb	China Airlines
18 Jan - 30 Jan	China Airlines
10 Jan - 17 Jan	China Airlines
01 Jan - 06 Jan	Korean Air

Also check the deals for one-way flights from San Jose 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 Jose to Bangkok in January from $784

Return flights