Cheapest return flights from San Francisco to Singapore in December from $717

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

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

Return flights

03 Dec - 23 Dec Singapore Airlines direct
05 Dec - 19 Dec Singapore Airlines
05 Dec - 19 Dec Singapore Airlines direct
01 Dec - 15 Dec Delta
22 Dec - 07 Jan Asiana Airlines
17 Dec - 10 Jan Vietnam Airlines
22 Dec - 07 Jan United direct
20 Dec - 07 Jan Malaysia Airlines
20 Dec - 07 Jan United direct

Also check the deals for one-way 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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