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

Return flights

25 Sep - 09 Oct	Saudia
27 Sep - 11 Oct	Saudia
27 Sep - 04 Oct	Saudia
25 Sep - 08 Oct	Etihad Airways
24 Sep - 27 Oct	Shenzhen Airlines
22 Sep - 12 Oct	KLM
29 Sep - 24 Oct	Turkish Airlines
29 Sep - 10 Oct	Turkish Airlines
28 Sep - 13 Oct	Ryanair
18 Sep - 20 Oct	Etihad Airways
17 Sep - 30 Sep	Etihad Airways
23 Sep - 28 Sep	Ryanair
18 Sep - 24 Sep	Etihad Airways
17 Sep - 25 Sep	Etihad Airways
18 Sep - 25 Sep	Etihad Airways
22 Sep - 28 Sep	Wizz Air
19 Sep - 29 Sep	Wizz Air Malta
17 Sep - 24 Sep	Wizz Air Malta
26 Sep - 28 Sep	Wizz Air Malta
21 Sep - 24 Sep	Ryanair

Also check the deals for one-way flights from Barcelona 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 Barcelona to Kuala Lumpur in September from $528

Return flights