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

Return flights

10 Sep - 17 Sep	Finnair
04 Sep - 21 Sep	Finnair
10 Sep - 21 Sep	Finnair
11 Sep - 23 Sep	Finnair
11 Sep - 17 Sep	Finnair
04 Sep - 28 Sep	Finnair
09 Sep - 16 Sep	Finnair
04 Sep - 16 Sep	Finnair
16 Sep - 23 Sep	Finnair
15 Sep - 01 Oct	Etihad Airways
12 Sep - 21 Sep	Finnair
25 Sep - 06 Oct	Finnair
24 Sep - 01 Oct	Etihad Airways
27 Sep - 25 Oct	Wizz Air Malta
29 Sep - 27 Oct	Vueling Airlines
26 Sep - 05 Oct	Finnair
24 Sep - 03 Oct	Vueling Airlines
10 Sep - 19 Oct	Etihad Airways
30 Sep - 06 Oct	Ryanair
22 Sep - 02 Oct	Etihad Airways

Also check the deals for one-way flights from Barcelona to Singapore in September.

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 September from 499€

Return flights