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

Return flights

21 Jan - 04 Feb	Asiana Airlines
28 Jan - 06 Feb	Asiana Airlines
28 Jan - 07 Feb	Asiana Airlines
27 Jan - 31 Jan	Asiana Airlines
25 Jan - 17 Feb	Korean Air
25 Jan - 05 Feb	Korean Air
27 Jan - 05 Feb	Korean Air
28 Jan - 05 Feb	Korean Air
14 Jan - 21 Jan	Asiana Airlines
30 Jan - 05 Feb	United	direct
22 Jan - 16 Feb	United	direct
21 Jan - 04 Feb	United	direct
27 Jan - 31 Jan	United	direct
23 Jan - 25 Jan	United	direct
11 Jan - 25 Jan	United	direct
12 Jan - 23 Jan	United	direct
18 Jan - 22 Jan	ANA
15 Jan - 22 Jan	Air India
10 Jan - 22 Jan	Air India
18 Jan - 24 Jan	United

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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from San Francisco to Singapore in January from $619

Return flights