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

Return flights

30 Aug - 23 Sep	SWISS
21 Aug - 08 Sep	Finnair
25 Aug - 09 Sep	Finnair
27 Aug - 11 Sep	Finnair
21 Aug - 11 Sep	Finnair
27 Aug - 14 Sep	Finnair
19 Aug - 09 Sep	Finnair
25 Aug - 07 Sep	Finnair
29 Aug - 18 Sep	Finnair
24 Aug - 07 Sep	Finnair
25 Aug - 30 Aug	Ryanair
19 Aug - 31 Aug	Finnair
09 Aug - 14 Aug	AZAL
17 Aug - 31 Aug	AZAL
17 Aug - 30 Aug	AZAL
20 Aug - 26 Aug	Finnair
23 Aug - 30 Aug	KLM
18 Aug - 31 Aug	Wizz Air Malta
15 Aug - 31 Aug	ITA Airways
15 Aug - 24 Aug	ITA Airways

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 $497

Return flights