AirHint found the following cheapest return flights from San Francisco (SFO) to Delhi (DEL) in September 2026 (see full year).

Return flights

11 Sep - 19 Sep	Air India
02 Sep - 30 Sep	Air India
03 Sep - 30 Sep	Air India
15 Sep - 05 Oct	Air India
11 Sep - 20 Sep	Air India
23 Sep - 21 Oct	Air India
05 Sep - 21 Sep	Air India
02 Sep - 12 Sep	Air India
03 Sep - 18 Sep	Air India
03 Sep - 19 Sep	Air India
25 Sep - 16 Oct	Air India
25 Sep - 17 Oct	Air India
02 Sep - 01 Oct	Air India
03 Sep - 01 Oct	Air India
02 Sep - 08 Sep	Air India
06 Sep - 13 Sep	Air India
26 Sep - 17 Oct	Air India
14 Sep - 05 Oct	Air India
09 Sep - 01 Oct	Air India
16 Sep - 07 Oct	SWISS

Also check the deals for one-way flights from San Francisco to Delhi 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 San Francisco to Delhi in September from $494

Return flights