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

Return flights

30 Sep - 07 Oct	Ryanair
30 Sep - 02 Oct	Ryanair
30 Sep - 06 Oct	Ryanair
24 Sep - 26 Sep	Ryanair
24 Sep - 30 Sep	Ryanair
25 Sep - 02 Oct	Wizz Air
27 Sep - 30 Sep	Ryanair
24 Sep - 04 Oct	Ryanair
28 Sep - 30 Sep	Wizz Air
25 Sep - 12 Oct	Ryanair
29 Sep - 01 Oct	Ryanair
23 Sep - 24 Sep	Ryanair
30 Sep - 04 Oct	easyJet
29 Sep - 30 Sep	Ryanair
26 Sep - 03 Oct	Ryanair
24 Sep - 28 Sep	Ryanair
29 Sep - 04 Oct	Ryanair
28 Sep - 29 Sep	easyJet
23 Sep - 28 Sep	Ryanair
29 Sep - 29 Sep	Ryanair

Also check the deals for one-way flights from Brussels 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 Brussels to Copenhagen in September from 127€

Return flights