AirHint found the following cheapest one-way flights from San Francisco (SFO) to Singapore (SIN) in May 2026 (see full year).

One-Way flights

17 May	Korean Air
26 May	Air Canada
21 May	Air Canada
07 May	United	direct
20 May	United	direct
17 May	United	direct
25 May	Asiana Airlines
27 May	United	direct
16 May	United	direct
26 May	United	direct

Also check the deals for return flights from San Francisco to Singapore in May.

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 one-way flights from San Francisco to Singapore in May from 319€

One-Way flights