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

Return flights

14 Sep - 29 Sep	United
17 Sep - 17 Oct	United
16 Sep - 30 Sep	United
11 Sep - 30 Sep	United
05 Sep - 04 Oct	United
08 Sep - 25 Sep	United
05 Sep - 19 Sep	United
28 Sep - 05 Oct	Virgin Atlantic
01 Sep - 18 Sep	Delta
21 Sep - 01 Oct	Delta
15 Sep - 22 Sep	Delta
16 Sep - 23 Sep	Delta
01 Sep - 25 Sep	Delta
15 Sep - 29 Sep	Delta
29 Sep - 08 Oct	Virgin Atlantic
29 Sep - 09 Oct	Virgin Atlantic
23 Sep - 03 Oct	Virgin Atlantic
24 Sep - 01 Oct	Virgin Atlantic
29 Sep - 06 Oct	Virgin Atlantic
20 Sep - 04 Oct	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 560€

Return flights