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

Return flights

30 Sep - 15 Oct	Turkish Airlines
30 Sep - 16 Oct	Turkish Airlines
16 Sep - 23 Sep	Scoot
14 Sep - 18 Sep	AirAsia
10 Sep - 14 Sep	Cathay Pacific
18 Sep - 25 Sep	AirAsia
17 Sep - 29 Sep	Scoot
10 Sep - 15 Sep	Cathay Pacific
23 Sep - 15 Oct	AirAsia
16 Sep - 26 Sep	Jetstar
23 Sep - 30 Sep	AirAsia
16 Sep - 29 Sep	Scoot
19 Sep - 25 Sep	AirAsia
30 Sep - 17 Oct	AirAsia
24 Sep - 05 Oct	AirAsia
24 Sep - 01 Oct	AirAsia
27 Sep - 19 Oct	AirAsia
25 Sep - 18 Oct	Jetstar
26 Sep - 11 Oct	AirAsia
30 Sep - 02 Oct	Emirates

Also check the deals for one-way flights from Perth 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 Perth to Barcelona in September from $830

Return flights