AirHint found the following cheapest return flights from San Jose (SJC) to Singapore (SIN) in January 2026 (see full year).

Return flights

14 Jan - 21 Jan	Japan Airlines
07 Jan - 28 Jan	Japan Airlines
20 Jan - 06 Feb	Japan Airlines
21 Jan - 04 Feb	Japan Airlines
22 Jan - 07 Feb	Japan Airlines
19 Jan - 17 Feb	Japan Airlines
10 Jan - 16 Jan	Japan Airlines
23 Jan - 30 Jan	Japan Airlines

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

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 Singapore in January from $816

Return flights