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

Return flights

03 Dec - 10 Dec	Turkish Airlines
29 Dec - 28 Jan	Turkish Airlines
30 Dec - 29 Jan	Turkish Airlines
05 Dec - 17 Dec	Turkish Airlines
01 Dec - 15 Dec	Turkish Airlines
31 Dec - 30 Jan	Turkish Airlines
03 Dec - 21 Jan	Turkish Airlines
02 Dec - 20 Dec	Turkish Airlines
27 Dec - 26 Jan	SWISS
28 Dec - 27 Jan	SWISS
11 Dec - 19 Jan	SWISS
29 Dec - 18 Jan	SWISS
11 Dec - 20 Jan	SWISS
24 Dec - 23 Jan	Lufthansa
01 Dec - 31 Dec	Turkish Airlines
16 Dec - 31 Dec	Lufthansa
13 Dec - 30 Dec	Lufthansa
17 Dec - 27 Dec	IndiGo
17 Dec - 24 Dec	KLM
17 Dec - 31 Dec	Lufthansa

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 655€

Return flights