AirHint found the following cheapest return flights from Karachi (KHI) to Istanbul (IST) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	Pegasus Airlines
20 Dec - 02 Jan	Jazeera Airways
04 Dec - 12 Dec	Air Arabia
02 Dec - 09 Dec	Jazeera Airways
25 Dec - 15 Jan	Air Arabia
21 Dec - 25 Dec	flydubai
11 Dec - 26 Dec	flydubai
22 Dec - 29 Dec	flydubai
17 Dec - 25 Dec	flydubai
22 Dec - 03 Jan	flydubai
30 Dec - 04 Jan	flydubai
20 Dec - 03 Jan	flydubai
22 Dec - 02 Jan	flydubai
25 Dec - 04 Jan	flydubai
23 Dec - 30 Dec	flydubai
13 Dec - 21 Dec	flydubai
02 Dec - 21 Dec	flydubai
30 Dec - 14 Jan	flydubai
31 Dec - 07 Jan	flydubai
19 Dec - 03 Jan	flydubai

Also check the deals for one-way flights from Karachi to Istanbul 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 Karachi to Istanbul in December from $394

Return flights