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

Return flights

01 Oct - 22 Oct	KLM
16 Oct - 23 Oct	KLM
27 Oct - 10 Nov	Air France
05 Oct - 18 Oct	KLM
05 Oct - 13 Oct	Air France
16 Oct - 27 Oct	KLM
01 Oct - 10 Oct	KLM
15 Oct - 28 Oct	Air France
09 Oct - 17 Oct	Air France
19 Oct - 30 Oct	KLM
24 Oct - 28 Oct	Delta
29 Oct - 04 Nov	Virgin Atlantic
03 Oct - 02 Nov	Air France
05 Oct - 04 Nov	Air France
26 Oct - 16 Nov	Lufthansa
12 Oct - 26 Nov	Lufthansa
26 Oct - 01 Nov	Air India
25 Oct - 01 Nov	Air India
18 Oct - 01 Nov	KLM

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 $773

Return flights