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

Return flights

01 Oct - 10 Oct	Air India	direct
02 Oct - 31 Oct	Air India	direct
01 Oct - 31 Oct	Air India	direct
10 Oct - 31 Oct	Air India
01 Oct - 30 Oct	Air India
03 Oct - 06 Oct	Air India
04 Oct - 04 Oct	Air India
08 Oct - 15 Oct	KLM
02 Oct - 20 Oct	KLM
01 Oct - 19 Oct	KLM
10 Oct - 09 Nov	Air France
31 Oct - 11 Nov	Virgin Atlantic
12 Oct - 11 Nov	Air France
26 Oct - 10 Nov	Air India
18 Oct - 01 Nov	Air India
30 Oct - 10 Nov	Air India	direct

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 591€

Return flights