AirHint found the following cheapest return flights from Singapore (SIN) to San Francisco (SFO) in August 2026 (see full year).
Return flights
| 07 Aug - 17 Aug | STARLUX Airlines | ||
| 07 Aug - 17 Aug | United | direct | |
| 01 Aug - 09 Aug | United | direct |
Also check the deals for one-way flights from Singapore to San Francisco in August.
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