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

Return flights

04 Apr - 19 Apr	Air India
04 Apr - 18 Apr	Korean Air
11 Apr - 25 Apr	Korean Air
08 Apr - 17 May	Asiana Airlines
08 Apr - 15 May	Asiana Airlines
01 Apr - 30 Apr	Asiana Airlines
01 Apr - 11 Apr	Air India
01 Apr - 30 Apr	Singapore Airlines	direct
02 Apr - 03 May	Air Canada
07 Apr - 05 May	Delta
01 Apr - 11 Apr	Singapore Airlines	direct
11 Apr - 25 Apr	Singapore Airlines	direct
04 Apr - 18 Apr	Singapore Airlines	direct
04 Apr - 19 Apr	Singapore Airlines	direct
02 Apr - 03 May	United	direct

Also check the deals for one-way 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 return flights from San Francisco to Singapore in April from $556

Return flights