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

Return flights

19 Sep - 23 Sep	Hainan Airlines
22 Sep - 16 Oct	Air China
22 Sep - 29 Sep	Air China
25 Sep - 02 Oct	Air China
20 Sep - 27 Sep	Shandong Airlines
21 Sep - 23 Oct	Hainan Airlines
21 Sep - 26 Sep	Hainan Airlines
23 Sep - 16 Oct	Korean Air
20 Sep - 23 Oct	Cathay Pacific
24 Sep - 16 Oct	Korean Air
21 Sep - 24 Sep	Hainan Airlines
22 Sep - 15 Oct	Air China
20 Sep - 24 Sep	Cathay Pacific
21 Sep - 25 Sep	Hainan Airlines
19 Sep - 23 Oct	Hainan Airlines
19 Sep - 26 Sep	Hainan Airlines
19 Sep - 15 Oct	Hainan Airlines
23 Sep - 15 Oct	Korean Air
19 Sep - 25 Sep	Hainan Airlines
19 Sep - 26 Sep	Air China	direct

Also check the deals for one-way flights from Beijing 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 Beijing to Barcelona in September from 774€

Return flights