Cheapest return flights from San Jose to Bangkok in September from $704

Best time to book flights for San Jose (SJC) to Bangkok (BKK) flights at AirHint

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

Return flights

16 Sep - 23 Sep Korean Air
09 Sep - 17 Sep Korean Air
07 Sep - 22 Sep Korean Air
17 Sep - 17 Oct Korean Air
07 Sep - 16 Sep Korean Air
04 Sep - 19 Sep Korean Air
15 Sep - 19 Sep Korean Air
24 Sep - 07 Oct China Airlines
24 Sep - 01 Oct China Airlines
23 Sep - 30 Sep Qatar Airways
14 Sep - 07 Oct Qatar Airways
27 Sep - 11 Oct Qatar Airways

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

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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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