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

Return flights

18 Sep - 20 Sep	Ryanair
24 Sep - 28 Sep	Ryanair
16 Sep - 21 Sep	Ryanair
02 Sep - 09 Sep	Ryanair
19 Sep - 23 Sep	Ryanair
17 Sep - 24 Sep	Ryanair
26 Sep - 29 Sep	Ryanair
20 Sep - 24 Sep	Ryanair
29 Sep - 06 Oct	Ryanair
19 Sep - 21 Sep	Ryanair
18 Sep - 21 Sep	Ryanair
29 Sep - 22 Oct	Ryanair
26 Sep - 01 Oct	Ryanair
29 Sep - 02 Oct	Ryanair
29 Sep - 23 Oct	Ryanair
29 Sep - 24 Oct	Ryanair
28 Sep - 05 Oct	Lufthansa
29 Sep - 22 Oct	Luxair	direct
29 Sep - 23 Oct	Luxair	direct
29 Sep - 02 Oct	Luxair	direct

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

Return flights