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

Return flights

18 Sep - 25 Sep	Emirates
24 Sep - 01 Oct	Emirates
16 Sep - 27 Sep	Saudia
23 Sep - 08 Oct	Emirates
26 Sep - 14 Oct	Qatar Airways
25 Sep - 16 Oct	Oman Air
22 Sep - 10 Oct	Etihad Airways
18 Sep - 07 Oct	Qatar Airways
26 Sep - 17 Oct	Etihad Airways
19 Sep - 10 Oct	Etihad Airways
19 Sep - 07 Oct	Etihad Airways
07 Sep - 14 Sep	KLM
12 Sep - 21 Sep	Air India
09 Sep - 24 Sep	Emirates
03 Sep - 10 Sep	Air China
14 Sep - 22 Sep	Emirates
11 Sep - 18 Sep	Qatar Airways
11 Sep - 21 Sep	Malaysia Airlines
12 Sep - 24 Sep	Etihad Airways

Also check the deals for one-way flights from Kuala Lumpur to Madrid 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 Kuala Lumpur to Madrid in September from $666

Return flights