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

Return flights

08 Mar - 18 Mar	Korean Air
02 Mar - 23 Mar	Korean Air
04 Mar - 24 Mar	Korean Air
01 Mar - 16 Mar	Korean Air
02 Mar - 17 Mar	Korean Air
18 Mar - 25 Mar	Korean Air
09 Mar - 17 Mar	Korean Air
10 Mar - 17 Mar	Korean Air
16 Mar - 24 Mar	Korean Air
04 Mar - 11 Mar	Korean Air
29 Mar - 07 Apr	Korean Air
22 Mar - 06 Apr	Korean Air
29 Mar - 12 Apr	Korean Air
14 Mar - 05 Apr	Korean Air
28 Mar - 05 Apr	Korean Air
26 Mar - 12 Apr	Korean Air
19 Mar - 05 Apr	Qatar Airways
10 Mar - 09 Apr	Qatar Airways
27 Mar - 03 Apr	Qatar Airways

Also check the deals for one-way flights from San Jose to Bangkok in March.

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 March from $702

Return flights