Cheapest return flights from San Francisco to Singapore in September from 545€

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

Return flights

26 Sep - 02 Oct United direct
28 Sep - 04 Oct United direct
15 Sep - 01 Oct United direct
19 Sep - 07 Oct United direct
26 Sep - 18 Oct United direct
15 Sep - 22 Sep Philippine Airlines
16 Sep - 29 Sep Philippine Airlines
17 Sep - 28 Sep Philippine Airlines
13 Sep - 20 Sep Philippine Airlines
12 Sep - 19 Sep Philippine Airlines
16 Sep - 29 Sep United direct
15 Sep - 22 Sep United direct
19 Sep - 29 Sep United direct
16 Sep - 28 Sep United direct
17 Sep - 28 Sep United direct
24 Sep - 13 Oct Delta
19 Sep - 06 Oct Delta

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

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.

Book a cheap hotel in Singapore

Cheap car rent in Singapore

Feel free to contact us with any feedback or request another flight research.