AirHint found the following cheapest return flights from Kolkata (CCU) to Istanbul (SAW) in September 2025 (see full year).

Return flights

16 Sep - 22 Sep	Air Arabia Abu Dhabi
08 Sep - 15 Sep	Qatar Airways
27 Sep - 04 Oct	flydubai
06 Sep - 10 Sep	Qatar Airways
05 Sep - 15 Sep	Qatar Airways
21 Sep - 25 Sep	Qatar Airways
26 Sep - 07 Oct	Qatar Airways
24 Sep - 06 Oct	Emirates
24 Sep - 05 Oct	Emirates

Also check the deals for one-way flights from Kolkata to Istanbul in September.

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 Kolkata to Istanbul in September from $663

Return flights