Cheapest return flights from Singapore to San Francisco in September from $749

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

Return flights

01 Sep - 08 Sep STARLUX Airlines
14 Sep - 28 Sep STARLUX Airlines
23 Sep - 23 Oct STARLUX Airlines
23 Sep - 25 Oct STARLUX Airlines
23 Sep - 26 Oct STARLUX Airlines
23 Sep - 27 Oct STARLUX Airlines
23 Sep - 28 Oct STARLUX Airlines
23 Sep - 29 Oct STARLUX Airlines
23 Sep - 30 Oct STARLUX Airlines
16 Sep - 26 Sep United direct
18 Sep - 25 Sep United direct
23 Sep - 24 Sep United direct
14 Sep - 28 Sep United direct
23 Sep - 23 Oct United direct
23 Sep - 24 Oct United direct
23 Sep - 25 Oct United direct
01 Sep - 08 Sep United direct
05 Sep - 20 Sep Delta

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

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