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

Return flights

05 Dec - 16 Dec	Cathay Pacific
05 Dec - 13 Dec	Cathay Pacific
04 Dec - 18 Dec	IndiGo
04 Dec - 18 Dec	Air India	direct
22 Dec - 22 Jan	Cathay Pacific
21 Dec - 22 Jan	Cathay Pacific
05 Dec - 16 Dec	Air India	direct
06 Dec - 18 Jan	IndiGo
05 Dec - 13 Dec	Air India	direct
02 Dec - 08 Jan	Turkish Airlines
02 Dec - 08 Jan	Air India	direct
18 Dec - 25 Dec	Cathay Pacific
13 Dec - 12 Jan	Cathay Pacific
22 Dec - 11 Jan	Cathay Pacific
04 Dec - 09 Jan	IndiGo
01 Dec - 15 Jan	United
20 Dec - 31 Jan	IndiGo
15 Dec - 25 Dec	IndiGo
06 Dec - 13 Dec	Air Canada
18 Dec - 25 Dec	Air India	direct

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

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 December from 751€

Return flights