Cheapest return flights from San Jose to Bangkok in December from $1047

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

Return flights

30 Dec - 29 Jan Korean Air
31 Dec - 27 Jan Japan Airlines
30 Dec - 27 Jan Japan Airlines
31 Dec - 13 Jan Japan Airlines
31 Dec - 25 Jan Korean Air
30 Dec - 30 Jan Korean Air
30 Dec - 14 Jan Japan Airlines
30 Dec - 06 Jan Alaska Airlines
26 Dec - 14 Jan Korean Air
29 Dec - 08 Jan Korean Air

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