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

Return flights

25 Sep - 30 Sep	easyJet
30 Sep - 03 Oct	easyJet
18 Sep - 23 Sep	easyJet
25 Sep - 27 Sep	easyJet
25 Sep - 28 Sep	easyJet	direct
21 Sep - 03 Oct	easyJet
12 Sep - 16 Sep	Scandinavian Airlines
11 Sep - 15 Sep	Scandinavian Airlines
12 Sep - 15 Sep	Scandinavian Airlines
22 Sep - 23 Sep	Scandinavian Airlines
28 Sep - 02 Oct	easyJet
18 Sep - 27 Sep	easyJet
29 Sep - 04 Oct	easyJet
16 Sep - 23 Sep	easyJet
14 Sep - 13 Oct	Volotea
29 Sep - 11 Oct	easyJet
13 Sep - 12 Oct	Aer Lingus
18 Sep - 04 Oct	Vueling Airlines
28 Sep - 02 Oct	easyJet	direct
18 Sep - 03 Oct	Vueling Airlines

Also check the deals for one-way flights from Lyon 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 Lyon to Copenhagen in September from $146

Return flights