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

Return flights

18 Sep - 25 Sep	Saudia
18 Sep - 02 Oct	Saudia
18 Sep - 23 Sep	Saudia
25 Sep - 14 Oct	Saudia
23 Sep - 30 Sep	Saudia
22 Sep - 02 Oct	Air France
14 Sep - 22 Sep	Air France
23 Sep - 05 Oct	Etihad Airways
21 Sep - 30 Sep	Etihad Airways
29 Sep - 02 Oct	Emirates
30 Sep - 03 Oct	Etihad Airways
27 Sep - 07 Oct	Gulf Air
21 Sep - 26 Sep	Qatar Airways
26 Sep - 28 Sep	Etihad Airways
12 Sep - 19 Sep	Etihad Airways
15 Sep - 18 Sep	Gulf Air
18 Sep - 22 Sep	Gulf Air
28 Sep - 17 Oct	Etihad Airways
30 Sep - 12 Oct	Gulf Air
28 Sep - 05 Oct	Turkish Airlines

Also check the deals for one-way flights from Singapore to Barcelona 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 Singapore to Barcelona in September from $472

Return flights