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

Return flights

16 Mar - 26 Mar	Asiana Airlines
12 Mar - 31 Mar	Asiana Airlines
12 Mar - 22 Mar	Asiana Airlines
23 Mar - 30 Mar	Asiana Airlines
12 Mar - 23 Mar	Asiana Airlines
12 Mar - 09 Apr	Asiana Airlines
16 Mar - 26 Mar	Singapore Airlines	direct
12 Mar - 31 Mar	Singapore Airlines	direct
06 Mar - 22 Mar	Asiana Airlines
06 Mar - 23 Mar	Asiana Airlines
12 Mar - 09 Apr	Singapore Airlines	direct
16 Mar - 02 Apr	United	direct
15 Mar - 02 Apr	United	direct
18 Mar - 04 Apr	Vietnam Airlines
23 Mar - 30 Mar	Singapore Airlines	direct

Also check the deals for one-way flights from San Francisco to Singapore 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 San Francisco to Singapore in March from 582€

Return flights