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

Return flights

19 Sep - 23 Sep	Air China
16 Sep - 24 Sep	Hainan Airlines
15 Sep - 24 Sep	China Southern
14 Sep - 25 Sep	Air China
15 Sep - 26 Sep	China Southern
15 Sep - 25 Sep	China Southern
22 Sep - 29 Sep	Hainan Airlines
11 Sep - 21 Sep	Air China
22 Sep - 20 Oct	Air China
05 Sep - 10 Sep	Thai Lion Air
12 Sep - 22 Sep	Hainan Airlines
25 Sep - 07 Oct	AirAsia
27 Sep - 07 Oct	AirAsia
30 Sep - 07 Oct	Hainan Airlines
26 Sep - 08 Oct	Shenzhen Airlines
26 Sep - 07 Oct	Thai Lion Air
30 Sep - 08 Oct	Hainan Airlines
29 Sep - 06 Oct	Thai Lion Air

Also check the deals for one-way flights from Shenzhen 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 Shenzhen to Barcelona in September from $788

Return flights