AirHint found the following cheapest return flights from Istanbul (IST) to Kuala Lumpur (KUL) in September 2025 (see full year).

Return flights

26 Sep - 03 Oct	Oman Air
15 Sep - 29 Sep	Oman Air
13 Sep - 24 Sep	Oman Air
30 Sep - 10 Oct	Oman Air
17 Sep - 22 Sep	Oman Air
03 Sep - 12 Sep	Air Arabia
07 Sep - 12 Sep	Air Arabia
09 Sep - 13 Oct	Air Arabia
27 Sep - 24 Oct	Pegasus Airlines
01 Sep - 12 Sep	Air Arabia
08 Sep - 12 Sep	Air Arabia
27 Sep - 12 Oct	Pegasus Airlines
28 Sep - 23 Oct	Pegasus Airlines
27 Sep - 04 Oct	Pegasus Airlines
21 Sep - 27 Sep	Pegasus Airlines
01 Sep - 31 Oct	Etihad Airways
06 Sep - 24 Sep	AJet
10 Sep - 30 Sep	Etihad Airways
28 Sep - 06 Oct	Etihad Airways
24 Sep - 22 Oct	Pegasus Airlines

Also check the deals for one-way flights from Istanbul to Kuala Lumpur 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 Istanbul to Kuala Lumpur in September from $423

Return flights