AirHint found the following cheapest return flights from Hong Kong (HKG) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

17 Sep - 22 Oct	Air China
16 Sep - 23 Sep	Air China
22 Sep - 26 Sep	Air China
19 Sep - 26 Sep	Air China
18 Sep - 27 Sep	Air China
17 Sep - 03 Oct	China Eastern
18 Sep - 03 Oct	China Eastern
19 Sep - 28 Sep	Air China
19 Sep - 23 Sep	Air China
22 Sep - 30 Sep	Hainan Airlines
24 Sep - 02 Oct	China Eastern
25 Sep - 02 Oct	Hainan Airlines
25 Sep - 03 Oct	Hainan Airlines
24 Sep - 03 Oct	Air China
21 Sep - 27 Sep	Greater Bay Airlines
28 Sep - 07 Oct	China Eastern
23 Sep - 02 Oct	Thai Lion Air
20 Sep - 25 Sep	China Eastern
28 Sep - 05 Oct	China Eastern
20 Sep - 27 Sep	China Eastern

Also check the deals for one-way flights from Hong Kong to Copenhagen 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 Hong Kong to Copenhagen in September from 437€

Return flights