Cheapest return flights from San Jose to Singapore in September from $834

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

Return flights

15 Sep - 24 Sep Japan Airlines
17 Sep - 24 Sep Japan Airlines
09 Sep - 16 Sep Japan Airlines
16 Sep - 23 Sep Japan Airlines
09 Sep - 30 Sep Japan Airlines
17 Sep - 30 Sep Japan Airlines
15 Sep - 30 Sep Japan Airlines
15 Sep - 08 Oct Japan Airlines
09 Sep - 01 Oct Japan Airlines
16 Sep - 01 Oct Japan Airlines
15 Sep - 01 Oct Japan Airlines
17 Sep - 01 Oct Japan Airlines
16 Sep - 30 Sep Japan Airlines
04 Sep - 11 Sep Korean Air
09 Sep - 15 Sep Korean Air
01 Sep - 02 Oct Japan Airlines
30 Sep - 07 Oct Japan Airlines

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