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

Return flights

05 Sep - 24 Oct	Air China
16 Sep - 23 Sep	Etihad Airways
15 Sep - 23 Sep	Etihad Airways
22 Sep - 29 Sep	Turkish Airlines
22 Sep - 16 Oct	Turkish Airlines
16 Sep - 28 Sep	Etihad Airways
14 Sep - 28 Sep	Etihad Airways
07 Sep - 24 Sep	Singapore Airlines
03 Sep - 13 Sep	Etihad Airways
07 Sep - 25 Sep	Qatar Airways
01 Sep - 22 Sep	Etihad Airways
10 Sep - 25 Sep	Etihad Airways
29 Sep - 15 Oct	Etihad Airways
23 Sep - 14 Oct	Qatar Airways
17 Sep - 05 Oct	Turkish Airlines
19 Sep - 10 Oct	Etihad Airways
29 Sep - 07 Oct	Emirates
01 Sep - 01 Oct	Etihad Airways
14 Sep - 03 Oct	Qatar Airways

Also check the deals for one-way flights from Melbourne 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 Melbourne to Barcelona in September from $1078

Return flights