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

Return flights

07 Aug - 19 Aug	British Airways
10 Aug - 21 Aug	British Airways
07 Aug - 18 Aug	British Airways
10 Aug - 17 Aug	British Airways
06 Aug - 20 Aug	Turkmenistan Airlines
18 Aug - 24 Aug	British Airways
01 Aug - 10 Aug	British Airways
27 Aug - 03 Sep	Etihad Airways
30 Aug - 02 Sep	Etihad Airways
29 Aug - 07 Sep	British Airways
14 Aug - 23 Aug	Emirates
28 Aug - 02 Sep	Qatar Airways
25 Aug - 01 Sep	Qatar Airways
01 Aug - 09 Aug	Batik Air Malaysia
11 Aug - 14 Aug	Emirates
19 Aug - 26 Sep	Emirates

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 $752

Return flights