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

Return flights

18 Jan - 24 Jan	United	direct
21 Jan - 01 Feb	United	direct
28 Jan - 10 Feb	United	direct
28 Jan - 04 Feb	United	direct
21 Jan - 29 Jan	United	direct
30 Jan - 07 Feb	United	direct
14 Jan - 21 Jan	Asiana Airlines
12 Jan - 07 Feb	Asiana Airlines
14 Jan - 21 Jan	United	direct
08 Jan - 28 Jan	United	direct
04 Jan - 03 Feb	United	direct
03 Jan - 04 Feb	Frontier Airlines
01 Jan - 18 Jan	Air India
13 Jan - 17 Jan	Air India
12 Jan - 07 Feb	Singapore Airlines	direct
02 Jan - 16 Jan	United	direct
03 Jan - 04 Feb	Singapore Airlines	direct
01 Jan - 18 Jan	United	direct
06 Jan - 17 Jan	Delta

Also check the deals for one-way flights from San Francisco 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 Francisco to Singapore in January from 553€

Return flights