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

Return flights

17 Sep - 30 Sep	Cathay Pacific
25 Sep - 02 Oct	Cathay Pacific
17 Sep - 12 Oct	Cathay Pacific
05 Sep - 20 Sep	Cathay Pacific
05 Sep - 03 Oct	Cathay Pacific
05 Sep - 21 Sep	Cathay Pacific
06 Sep - 13 Sep	Cathay Pacific
03 Sep - 08 Oct	Air India
12 Sep - 03 Oct	IndiGo
08 Sep - 10 Oct	IndiGo
25 Sep - 01 Oct	IndiGo
10 Sep - 15 Oct	IndiGo
01 Sep - 14 Oct	IndiGo

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 784€

Return flights