Cheapest return flights from San Jose to Singapore in September from $827

Best time to book flights for San Jose (SJC) to Singapore (SIN) flights at AirHint

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

Return flights

02 Sep - 23 Sep Korean Air
03 Sep - 24 Sep Korean Air
23 Sep - 14 Oct Korean Air
09 Sep - 15 Sep Korean Air
02 Sep - 09 Sep Korean Air
24 Sep - 15 Oct Korean Air
09 Sep - 12 Oct Korean Air
17 Sep - 08 Oct Japan Airlines
16 Sep - 07 Oct Japan Airlines
10 Sep - 01 Oct Japan Airlines
30 Sep - 21 Oct Japan Airlines
09 Sep - 30 Sep China Airlines
25 Sep - 03 Oct Japan Airlines
02 Sep - 04 Oct Singapore Airlines

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

Skyscanner

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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