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

Return flights

05 Oct - 17 Oct	Air India
16 Oct - 27 Oct	Air India
05 Oct - 24 Oct	Air India
01 Oct - 10 Oct	Air India
12 Oct - 17 Oct	Air India
10 Oct - 27 Oct	Air India
05 Oct - 13 Oct	Air India
01 Oct - 07 Oct	Air India
04 Oct - 24 Oct	Air India
19 Oct - 30 Oct	Air India
31 Oct - 09 Nov	Air India
31 Oct - 08 Nov	Air India
28 Oct - 04 Nov	Air India
27 Oct - 03 Nov	Air India
26 Oct - 02 Nov	Air India
07 Oct - 02 Nov	SWISS
31 Oct - 11 Nov	Lufthansa
29 Oct - 05 Nov	Lufthansa
23 Oct - 30 Nov	Lufthansa
04 Oct - 07 Nov	Air India

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.

Book a cheap hotel in San Francisco

Cheap car rent in San Francisco

Cheapest return flights from Bangalore to San Francisco in October from 637€

Return flights