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

Return flights

23 Sep - 30 Sep	United
02 Sep - 30 Sep	United
01 Sep - 30 Sep	United
21 Sep - 21 Oct	United
17 Sep - 23 Sep	United
11 Sep - 21 Sep	United
22 Sep - 22 Oct	United
22 Sep - 23 Oct	Delta
20 Sep - 13 Oct	KLM
27 Sep - 25 Oct	Virgin Atlantic
25 Sep - 22 Oct	United
20 Sep - 15 Oct	Turkish Airlines
20 Sep - 14 Oct	United
30 Sep - 28 Oct	Spirit Airlines
20 Sep - 18 Oct	Turkish Airlines

Also check the deals for one-way flights from Detroit 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 Detroit to Delhi in September from 548€

Return flights