Cheapest return flights from Singapore to San Francisco in September from $745

Best time to book flights for Singapore (SIN) to San Francisco (SFO) flights at AirHint

AirHint found the following cheapest return flights from Singapore (SIN) to San Francisco (SFO) in September 2025 (see full year).

Return flights

23 Sep - 30 Sep China Airlines
16 Sep - 20 Sep China Airlines
09 Sep - 18 Sep China Airlines
05 Sep - 20 Sep China Airlines
06 Sep - 20 Sep China Airlines
09 Sep - 16 Sep China Airlines
03 Sep - 20 Sep China Airlines
01 Sep - 15 Sep China Airlines
27 Sep - 27 Oct China Airlines
27 Sep - 10 Oct China Airlines
09 Sep - 18 Sep Singapore Airlines direct
27 Sep - 06 Oct Singapore Airlines direct
01 Sep - 15 Sep Singapore Airlines direct
27 Sep - 27 Oct Singapore Airlines direct
27 Sep - 13 Oct United direct
27 Sep - 10 Oct United direct
25 Sep - 05 Oct Air Canada
22 Sep - 09 Oct Delta

Also check the deals for one-way flights from Singapore to San Francisco in September.

Skyscanner

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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