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

Return flights

01 Dec - 09 Dec	Turkish Airlines
07 Dec - 19 Dec	Turkish Airlines
10 Dec - 27 Jan	IndiGo
03 Dec - 22 Jan	Turkish Airlines
10 Dec - 21 Jan	SWISS
29 Dec - 17 Jan	IndiGo
09 Dec - 13 Jan	Turkish Airlines
04 Dec - 18 Jan	Turkish Airlines
09 Dec - 19 Jan	SWISS
26 Dec - 25 Jan	Lufthansa
11 Dec - 25 Jan	SWISS
02 Dec - 18 Jan	SWISS
03 Dec - 29 Dec	Turkish Airlines
02 Dec - 29 Dec	Turkish Airlines
09 Dec - 31 Dec	Turkish Airlines
13 Dec - 20 Dec	Japan Airlines
22 Dec - 29 Dec	Lufthansa
21 Dec - 30 Dec	Lufthansa
20 Dec - 27 Dec	Frontier Airlines
20 Dec - 30 Dec	Air Canada

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 $771

Return flights