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

Return flights

28 Jul - 05 Aug	Korean Air
28 Jul - 11 Aug	Korean Air
27 Jul - 12 Aug	United	direct
26 Jul - 08 Aug	Korean Air
26 Jul - 09 Aug	Korean Air
21 Jul - 28 Jul	Korean Air
21 Jul - 13 Aug	Korean Air
25 Jul - 28 Jul	ANA
22 Jul - 29 Jul	ANA
23 Jul - 29 Jul	ANA
28 Jul - 05 Aug	United	direct
17 Jul - 27 Jul	Asiana Airlines
22 Jul - 08 Aug	United	direct
26 Jul - 08 Aug	United	direct
24 Jul - 08 Aug	United	direct
18 Jul - 21 Jul	Delta
18 Jul - 22 Jul	Delta
19 Jul - 29 Jul	ANA
20 Jul - 27 Jul	United	direct
24 Jul - 30 Jul	United	direct

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

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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Cheapest return flights from San Francisco to Singapore in July from $709

Return flights