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

Return flights

06 Apr - 28 Apr	Philippine Airlines
01 Apr - 27 Apr	Singapore Airlines	direct
01 Apr - 28 Apr	Singapore Airlines	direct
06 Apr - 28 Apr	Singapore Airlines	direct
04 Apr - 27 Apr	Philippine Airlines
04 Apr - 28 Apr	Philippine Airlines
05 Apr - 27 Apr	Korean Air
02 Apr - 28 Apr	Korean Air
02 Apr - 27 Apr	Korean Air
02 Apr - 28 Apr	Singapore Airlines	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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Cheapest return flights from San Francisco to Singapore in April from $731

Return flights