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

Return flights

26 Mar - 02 Apr	Cathay Pacific
16 Mar - 21 Mar	Cathay Pacific
16 Mar - 30 Mar	Cathay Pacific
04 Mar - 11 Mar	United	direct
14 Mar - 27 Mar	China Airlines
21 Mar - 30 Mar	United	direct
26 Mar - 02 Apr	United	direct
26 Mar - 09 Apr	United	direct
16 Mar - 30 Mar	United	direct
27 Mar - 15 Apr	United	direct
20 Mar - 28 Mar	Singapore Airlines	direct
14 Mar - 27 Mar	Singapore Airlines	direct
05 Mar - 19 Mar	Air Canada
27 Mar - 12 Apr	United	direct
02 Mar - 13 Mar	Delta

Also check the deals for one-way flights from Singapore to San Francisco in March.

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 San Francisco

Cheap car rent in San Francisco

Cheapest return flights from Singapore to San Francisco in March from $688

Return flights