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

Return flights

05 Mar - 22 Mar	Cathay Pacific
03 Mar - 13 Mar	Cathay Pacific
23 Mar - 29 Mar	Cathay Pacific
06 Mar - 20 Mar	Singapore Airlines	direct
03 Mar - 13 Mar	Singapore Airlines	direct
21 Mar - 29 Mar	Singapore Airlines	direct
23 Mar - 29 Mar	Singapore Airlines	direct
22 Mar - 29 Mar	United	direct
21 Mar - 30 Mar	United	direct
27 Mar - 15 Apr	United	direct
03 Mar - 17 Mar	Air Canada

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.

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Cheapest return flights from Singapore to San Francisco in March from 592€

Return flights