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

Return flights

27 Sep - 11 Oct	Lufthansa
29 Sep - 27 Oct	SWISS
29 Sep - 29 Oct	SWISS
30 Sep - 22 Oct	SWISS
29 Sep - 21 Oct	SWISS
22 Sep - 27 Oct	ITA Airways
30 Sep - 30 Oct	SWISS
30 Sep - 21 Oct	SWISS
29 Sep - 15 Oct	SWISS
30 Sep - 15 Oct	SWISS
21 Sep - 24 Sep	Virgin Atlantic
20 Sep - 27 Sep	Virgin Atlantic
22 Sep - 30 Sep	Virgin Atlantic
21 Sep - 29 Sep	Virgin Atlantic
20 Sep - 30 Sep	Virgin Atlantic
24 Sep - 26 Sep	Virgin Atlantic
23 Sep - 30 Sep	Virgin Atlantic
22 Sep - 29 Sep	Virgin Atlantic
21 Sep - 30 Sep	Virgin Atlantic
20 Sep - 29 Sep	Virgin Atlantic

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 580€

Return flights