AirHint found the following cheapest one-way flights from San Francisco (SFO) to Bangalore (BLR) in September 2025 (see full year).

One-Way flights

16 Sep	Singapore Airlines
14 Sep	Singapore Airlines
30 Sep	Singapore Airlines
15 Sep	Singapore Airlines
10 Sep	Singapore Airlines
29 Sep	Singapore Airlines
02 Sep	Singapore Airlines
13 Sep	Singapore Airlines
18 Sep	Singapore Airlines
19 Sep	Singapore Airlines

Also check the deals for return flights from San Francisco to Bangalore in September.

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 one-way flights from San Francisco to Bangalore in September from $280

One-Way flights