Cheapest return flights from San Francisco to Singapore in August from $685

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 August 2025 (see full year).

Return flights

21 Aug - 27 Aug Philippine Airlines
24 Aug - 30 Sep Philippine Airlines
28 Aug - 02 Sep Philippine Airlines
28 Aug - 02 Sep Singapore Airlines direct
21 Aug - 27 Aug Singapore Airlines direct
24 Aug - 30 Sep Singapore Airlines direct
14 Aug - 21 Aug United direct
10 Aug - 19 Aug ANA
04 Aug - 11 Aug ANA
01 Aug - 16 Aug Korean Air
22 Aug - 31 Aug Singapore Airlines direct
01 Aug - 16 Aug Singapore Airlines direct

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

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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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