Cheapest return flights from Singapore to San Francisco in December from $827

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 December 2025 (see full year).

Return flights

19 Dec - 03 Jan China Airlines
06 Dec - 27 Dec China Airlines
15 Dec - 05 Jan China Airlines
19 Dec - 09 Jan China Airlines
18 Dec - 08 Jan China Airlines
20 Dec - 10 Jan China Airlines
06 Dec - 13 Dec China Airlines
06 Dec - 27 Dec United direct
15 Dec - 05 Jan United direct
19 Dec - 09 Jan United direct
18 Dec - 08 Jan United direct
20 Dec - 10 Jan United direct
20 Dec - 02 Jan United direct
06 Dec - 13 Dec Singapore Airlines direct
12 Dec - 20 Dec United direct

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