AirHint found the following cheapest return flights from Madras (MAA) to San Francisco (SFO) in September 2025 (see full year).

Return flights

18 Sep - 23 Sep	Air India
18 Sep - 25 Sep	Air India
16 Sep - 25 Sep	Air India
09 Sep - 24 Sep	Air India
05 Sep - 09 Sep	Air India
05 Sep - 20 Sep	Air India
13 Sep - 16 Sep	Air India
01 Sep - 01 Sep	Air India
23 Sep - 27 Sep	Air India
18 Sep - 02 Oct	Air India
20 Sep - 27 Sep	Air India
19 Sep - 05 Oct	Air India
16 Sep - 16 Oct	Cathay Pacific

Also check the deals for one-way flights from Madras to San Francisco in September.

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 Madras to San Francisco in September from 509€

Return flights