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

Return flights

29 Sep - 25 Oct	Qatar Airways
07 Sep - 22 Sep	United
02 Sep - 12 Sep	United
09 Sep - 30 Sep	United
22 Sep - 06 Oct	United
27 Sep - 05 Oct	United
27 Sep - 06 Oct	United
05 Sep - 12 Sep	United
03 Sep - 25 Sep	United
24 Sep - 15 Oct	United
25 Sep - 12 Oct	United
01 Sep - 22 Sep	EVA Air
01 Sep - 21 Sep	Emirates
26 Sep - 06 Oct	United
26 Sep - 05 Oct	United
04 Sep - 22 Sep	Cathay Pacific
23 Sep - 01 Oct	Singapore Airlines
13 Sep - 15 Sep	Singapore Airlines
24 Sep - 01 Oct	United
19 Sep - 22 Sep	Qatar Airways

Also check the deals for one-way flights from Brisbane 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 Brisbane to Barcelona in September from $1227

Return flights