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

One-Way flights

08 Apr	Korean Air
30 Apr	Japan Airlines
17 Apr	Asiana Airlines
30 Apr	United	direct
09 Apr	United	direct
22 Apr	United	direct
23 Apr	United	direct
08 Apr	United	direct
17 Apr	Singapore Airlines	direct

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

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 April from 321€

One-Way flights