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

Return flights

31 Aug - 18 Sep	Etihad Airways
31 Aug - 25 Sep	Etihad Airways
26 Aug - 09 Sep	Etihad Airways
25 Aug - 22 Sep	Etihad Airways
31 Aug - 26 Sep	Turkish Airlines
28 Aug - 11 Sep	Wizz Air Malta
29 Aug - 08 Sep	Air China
24 Aug - 21 Sep	Air China
31 Aug - 14 Sep	Wizz Air Malta
29 Aug - 28 Sep	Etihad Airways
21 Aug - 24 Aug	Air China
26 Aug - 31 Aug	Air China
25 Aug - 31 Aug	Air China
28 Aug - 31 Aug	Air China
21 Aug - 28 Aug	Air China
18 Aug - 31 Aug	Air China
21 Aug - 31 Aug	Air China
25 Aug - 30 Aug	Shenzhen Airlines
19 Aug - 23 Aug	Air China
18 Aug - 23 Aug	Air China

Also check the deals for one-way flights from Barcelona to Singapore 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 Barcelona to Singapore in August from $688

Return flights