AirHint found the following cheapest return flights from Chicago (ORD) to Delhi (DEL) in October 2025 (see full year).

Return flights

20 Oct - 20 Nov	Lufthansa
24 Oct - 09 Nov	Lufthansa
14 Oct - 29 Oct	SWISS
24 Oct - 15 Nov	SWISS
20 Oct - 26 Nov	Turkish Airlines
05 Oct - 19 Nov	Lufthansa
08 Oct - 27 Oct	SWISS
06 Oct - 28 Oct	SWISS
06 Oct - 16 Nov	SWISS
05 Oct - 04 Nov	SWISS
06 Oct - 05 Nov	SWISS
25 Oct - 24 Nov	SWISS
19 Oct - 18 Nov	SWISS
03 Oct - 10 Oct	Cathay Pacific
01 Oct - 31 Oct	Cathay Pacific
03 Oct - 13 Oct	Cathay Pacific
22 Oct - 31 Oct	Cathay Pacific
03 Oct - 14 Oct	Cathay Pacific
09 Oct - 20 Oct	Etihad Airways
08 Oct - 24 Oct	SWISS

Also check the deals for one-way flights from Chicago to Delhi in October.

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 Chicago to Delhi in October from 587€

Return flights