AirHint found the following cheapest return flights from Bangalore (BLR) to San Francisco (SFO) in October 2025 (see full year).

Return flights

02 Oct - 22 Oct	KLM
07 Oct - 21 Oct	KLM
08 Oct - 28 Oct	KLM
14 Oct - 21 Oct	Air France
01 Oct - 21 Oct	Air France
01 Oct - 08 Oct	Air France
02 Oct - 09 Oct	KLM
02 Oct - 12 Oct	KLM
02 Oct - 11 Oct	Delta
01 Oct - 11 Oct	Delta
02 Oct - 17 Nov	Delta
03 Oct - 18 Nov	Air France
19 Oct - 02 Nov	Air India
02 Oct - 25 Nov	KLM
08 Oct - 25 Nov	SWISS
09 Oct - 26 Nov	SWISS
31 Oct - 17 Nov	Air India
17 Oct - 03 Nov	Air India
17 Oct - 07 Nov	Air India
23 Oct - 30 Nov	SWISS

Also check the deals for one-way flights from Bangalore to San Francisco in October.

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 Bangalore to San Francisco in October from 589€

Return flights