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

Return flights

24 Sep - 22 Oct	Virgin Australia
09 Sep - 24 Sep	United
09 Sep - 25 Sep	United
22 Sep - 29 Sep	United
07 Sep - 15 Sep	United
26 Sep - 17 Oct	United
25 Sep - 01 Oct	United
07 Sep - 05 Oct	United
07 Sep - 25 Oct	United
08 Sep - 15 Sep	EVA Air
16 Sep - 22 Sep	United
02 Sep - 17 Sep	United
08 Sep - 22 Sep	EVA Air
06 Sep - 13 Sep	Emirates
03 Sep - 18 Sep	Qatar Airways
08 Sep - 18 Oct	Qatar Airways
11 Sep - 11 Oct	Qatar Airways
06 Sep - 18 Oct	Singapore Airlines

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 1074€

Return flights