Cheapest one-way flights from San Francisco to Singapore in December from $323

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

One-Way flights

06 Dec Asiana Airlines
01 Dec Korean Air
03 Dec Korean Air
04 Dec Korean Air
02 Dec United direct
01 Dec United direct
03 Dec United direct
08 Dec Japan Airlines
07 Dec Japan Airlines
31 Dec Air India

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

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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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