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

Return flights

12 Sep - 17 Sep	Air China
12 Sep - 19 Sep	Air China
22 Sep - 25 Sep	Air China
16 Sep - 23 Sep	Air China
11 Sep - 23 Sep	Air China
22 Sep - 20 Oct	Air China
11 Sep - 16 Sep	Air China
13 Sep - 24 Sep	Air China
11 Sep - 22 Sep	Air China
04 Sep - 16 Sep	Turkish Airlines
18 Sep - 29 Sep	Turkish Airlines
16 Sep - 03 Oct	Turkish Airlines
30 Sep - 06 Oct	Singapore Airlines
29 Sep - 06 Oct	Singapore Airlines
27 Sep - 04 Oct	Air India
26 Sep - 12 Oct	Finnair
06 Sep - 04 Oct	Air India
23 Sep - 06 Oct	Singapore Airlines
28 Sep - 04 Oct	British Airways
23 Sep - 04 Oct	British Airways

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.

Book a cheap hotel in Copenhagen

Cheap car rent in Copenhagen

Cheapest return flights from Hong Kong to Copenhagen in September from $505

Return flights