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

Return flights

10 Oct - 20 Oct	Air France
02 Oct - 06 Oct	Air France
15 Oct - 25 Oct	Air France
03 Oct - 22 Oct	Air France
04 Oct - 08 Oct	Delta
04 Oct - 14 Oct	Virgin Atlantic
01 Oct - 03 Nov	Virgin Atlantic
13 Oct - 30 Nov	Singapore Airlines
18 Oct - 27 Oct	KLM
02 Oct - 23 Nov	Lufthansa
24 Oct - 28 Oct	Delta
12 Oct - 17 Oct	KLM
18 Oct - 01 Nov	Singapore Airlines
01 Oct - 31 Oct	Lufthansa
01 Oct - 03 Nov	Air India	direct
01 Oct - 01 Nov	Air France

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 663€

Return flights