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

Return flights

23 Sep - 26 Sep	Wizz Air Malta
24 Sep - 27 Sep	Wizz Air
08 Sep - 10 Sep	Ryanair
24 Sep - 26 Sep	Wizz Air
28 Sep - 03 Oct	Ryanair
30 Sep - 07 Oct	Wizz Air
11 Sep - 12 Sep	Wizz Air Malta
22 Sep - 24 Sep	Ryanair
24 Sep - 29 Sep	Wizz Air
08 Sep - 09 Sep	Ryanair
12 Sep - 13 Sep	Wizz Air Malta
23 Sep - 29 Sep	Ryanair
28 Sep - 05 Oct	Ryanair
27 Sep - 04 Oct	easyJet
15 Sep - 05 Oct	Ryanair
28 Sep - 18 Oct	Ryanair
26 Sep - 03 Oct	Scandinavian Airlines	direct
28 Sep - 03 Oct	Scandinavian Airlines	direct
30 Sep - 02 Oct	Scandinavian Airlines	direct
28 Sep - 05 Oct	Scandinavian Airlines	direct

Also check the deals for one-way flights from Copenhagen to Brussels 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 Copenhagen to Brussels in September from $129

Return flights