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

Return flights

09 Apr - 20 Apr	Cathay Pacific
09 Apr - 15 Apr	Cathay Pacific
01 Apr - 12 Apr	Cathay Pacific
01 Apr - 13 Apr	Cathay Pacific
09 Apr - 13 Apr	Cathay Pacific
01 Apr - 07 Apr	Cathay Pacific
09 Apr - 20 Apr	Singapore Airlines	direct
04 Apr - 18 Apr	Singapore Airlines	direct
01 Apr - 12 Apr	Singapore Airlines	direct
01 Apr - 13 Apr	Singapore Airlines	direct

Also check the deals for one-way flights from Singapore to San Francisco 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 return flights from Singapore to San Francisco in April from $696

Return flights