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

Return flights

10 Jul - 16 Jul	Asiana Airlines
17 Jul - 27 Jul	Asiana Airlines
06 Jul - 13 Jul	Asiana Airlines
10 Jul - 22 Aug	Asiana Airlines
08 Jul - 22 Aug	Asiana Airlines
09 Jul - 22 Aug	Asiana Airlines
15 Jul - 22 Aug	Asiana Airlines
16 Jul - 22 Aug	Asiana Airlines
23 Jul - 13 Aug	Korean Air
30 Jul - 20 Aug	Korean Air
22 Jul - 03 Aug	Asiana Airlines
28 Jul - 11 Aug	United	direct
21 Jul - 28 Jul	Korean Air
22 Jul - 29 Jul	Korean Air
15 Jul - 22 Jul	Korean Air
29 Jul - 05 Aug	Korean Air
23 Jul - 30 Jul	United	direct
22 Jul - 29 Jul	United	direct
25 Jul - 28 Jul	United	direct
19 Jul - 28 Jul	Korean Air

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 581€

Return flights