AirHint found the following cheapest one-way flights from Mumbai (BOM) to San Francisco (SFO) in October 2025 (see full year).

One-Way flights

06 Oct	Air India	direct
03 Oct	Air India	direct
09 Oct	Air India
31 Oct	Singapore Airlines
28 Oct	Singapore Airlines
10 Oct	Air India	direct
04 Oct	Air India	direct
05 Oct	Air India
28 Oct	Air India	direct
31 Oct	Air India	direct

Also check the deals for return flights from Mumbai 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 one-way flights from Mumbai to San Francisco in October from 299€

One-Way flights