Cheapest return flights from Barcelona to Sydney in September from $1027

Best time to book flights for Barcelona (BCN) to Sydney (SYD) flights at AirHint

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

Return flights

23 Sep - 30 Sep Vueling Airlines
01 Sep - 30 Sep Vueling Airlines
09 Sep - 30 Sep Aegean Airlines
01 Sep - 15 Sep Vueling Airlines
19 Sep - 30 Sep Ryanair
21 Sep - 14 Oct Ryanair
16 Sep - 14 Oct Vueling Airlines
05 Sep - 16 Sep Aegean Airlines
12 Sep - 05 Oct Aegean Airlines
03 Sep - 16 Sep Austrian Airlines
01 Sep - 22 Sep Vueling Airlines
06 Sep - 19 Sep Vueling Airlines
01 Sep - 21 Sep SWISS

Also check the deals for one-way flights from Barcelona to Sydney in September.

Skyscanner

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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