Cheapest one-way flights from San Francisco to Singapore in December from $703

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

AirHint found the following cheapest one-way flights from San Francisco (SFO) to Singapore (SIN) in December 2025 (see full year).

One-Way flights

15 Dec Air Canada
15 Dec United direct
18 Dec Asiana Airlines
18 Dec United direct

Also check the deals for return flights from San Francisco to Singapore in December.

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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