AirHint found the following cheapest return flights from Madrid (MAD) to Jakarta (CGK) in August 2025 (see full year).

Return flights

31 Aug - 16 Sep	Etihad Airways
31 Aug - 17 Sep	Etihad Airways
31 Aug - 25 Sep	Etihad Airways
29 Aug - 21 Sep	Etihad Airways
29 Aug - 18 Sep	Etihad Airways
31 Aug - 26 Sep	Etihad Airways
25 Aug - 25 Sep	Turkish Airlines
30 Aug - 25 Sep	Turkish Airlines
29 Aug - 14 Sep	Ryanair
26 Aug - 17 Sep	Qatar Airways
20 Aug - 31 Aug	Ryanair
19 Aug - 26 Aug	Ryanair
21 Aug - 31 Aug	Ryanair
14 Aug - 26 Aug	Xiamen Airlines
12 Aug - 25 Aug	Vueling Airlines
18 Aug - 26 Aug	Transavia France
19 Aug - 29 Aug	Ryanair
21 Aug - 30 Aug	Ryanair
18 Aug - 25 Aug	Ryanair
07 Aug - 19 Aug	Air China

Also check the deals for one-way flights from Madrid to Jakarta 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 Madrid to Jakarta in August from $667

Return flights