Cheapest return flights from Singapore to San Francisco in October from $753

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 October 2025 (see full year).

Return flights

15 Oct - 25 Oct China Airlines
11 Oct - 18 Oct China Airlines
24 Oct - 26 Oct China Airlines
24 Oct - 31 Oct China Airlines
17 Oct - 26 Oct China Airlines
17 Oct - 25 Oct China Airlines
15 Oct - 22 Oct China Airlines
15 Oct - 21 Oct China Airlines
04 Oct - 11 Oct China Airlines
15 Oct - 25 Oct Singapore Airlines direct
31 Oct - 15 Nov United direct

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

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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