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

Return flights

29 Sep - 14 Oct	Oman Air
24 Sep - 01 Oct	Oman Air
25 Sep - 01 Oct	Oman Air
29 Sep - 08 Oct	Oman Air
25 Sep - 28 Sep	Oman Air
29 Sep - 12 Oct	Oman Air
27 Sep - 17 Oct	Pegasus Airlines
23 Sep - 30 Sep	IndiGo
26 Sep - 29 Sep	Oman Air
27 Sep - 30 Sep	IndiGo
28 Sep - 03 Oct	Oman Air
24 Sep - 29 Sep	IndiGo
26 Sep - 06 Oct	Oman Air
22 Sep - 11 Oct	IndiGo
21 Sep - 29 Sep	IndiGo
28 Sep - 08 Oct	IndiGo
22 Sep - 27 Sep	IndiGo
22 Sep - 25 Sep	IndiGo
21 Sep - 27 Sep	IndiGo
25 Sep - 30 Sep	IndiGo

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 338€

Return flights