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

Return flights

01 Sep - 16 Oct	Singapore Airlines
01 Sep - 08 Oct	Singapore Airlines
05 Sep - 07 Oct	Singapore Airlines
01 Sep - 18 Sep	Delta
08 Sep - 22 Sep	Delta
16 Sep - 11 Oct	Delta
03 Sep - 17 Sep	Air France
05 Sep - 16 Sep	KLM
03 Sep - 08 Oct	Air France
06 Sep - 30 Sep	Virgin Atlantic
20 Sep - 23 Oct	Virgin Atlantic
27 Sep - 22 Oct	Virgin Atlantic
04 Sep - 22 Sep	Air France
03 Sep - 04 Oct	Virgin Atlantic
09 Sep - 16 Sep	Virgin Atlantic
30 Sep - 07 Oct	Turkish Airlines
25 Sep - 30 Oct	Turkish Airlines
12 Sep - 19 Sep	Virgin Atlantic
04 Sep - 22 Sep	Air India	direct
05 Sep - 14 Sep	Air India

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.

Book a cheap hotel in Delhi

Cheap car rent in Delhi

Cheapest return flights from San Francisco to Delhi in September from 555€

Return flights