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

Return flights

25 Sep - 12 Oct	Air China
27 Sep - 19 Oct	Hainan Airlines	direct
23 Sep - 12 Oct	Thai Airways
25 Sep - 11 Oct	Hainan Airlines	direct
28 Sep - 04 Oct	Hainan Airlines	direct
28 Sep - 11 Oct	Hainan Airlines	direct
27 Sep - 12 Oct	Hainan Airlines	direct
28 Sep - 09 Oct	Hainan Airlines
20 Sep - 05 Oct	Air China
27 Sep - 07 Oct	Hainan Airlines

Also check the deals for one-way flights from Beijing to Dublin 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 Dublin in September from 799€

Return flights