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

Return flights

31 Dec - 20 Jan	Etihad Airways
31 Dec - 21 Jan	Turkish Airlines
24 Dec - 20 Jan	Turkish Airlines
18 Dec - 06 Jan	Etihad Airways
24 Dec - 31 Dec	Qatar Airways
21 Dec - 05 Jan	Etihad Airways
21 Dec - 04 Jan	Etihad Airways

Also check the deals for one-way flights from Chicago to Islamabad 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 Islamabad in December from 1135€

Return flights