AirHint found the following cheapest return flights from Kuala Lumpur (KUL) to Barcelona (BCN) in August 2026 (see full year).

Return flights

19 Aug - 08 Sep	China Eastern
19 Aug - 07 Sep	China Eastern
19 Aug - 29 Aug	Turkmenistan Airlines
19 Aug - 28 Aug	Turkmenistan Airlines
17 Aug - 20 Sep	Emirates
21 Aug - 10 Sep	AirAsia X
19 Aug - 30 Aug	Emirates
22 Aug - 30 Aug	AirAsia
29 Aug - 03 Sep	Qatar Airways
21 Aug - 11 Sep	Air Arabia
28 Aug - 05 Sep	Qatar Airways
08 Aug - 31 Aug	Cathay Pacific

Also check the deals for one-way flights from Kuala Lumpur to Barcelona in August.

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 Barcelona in August from $650

Return flights