AirHint found the following cheapest one-way flights from Singapore (SIN) to San Francisco (SFO) in May 2026 (see full year).
One-Way flights
| 17 May | Cebu Pacific | ||
| 29 May | China Airlines | ||
| 22 May | China Airlines | ||
| 29 May | United | direct | |
| 22 May | United | direct | |
| 17 May | United | direct |
Also check the deals for return flights from Singapore to San Francisco in May.
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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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